Adhesives and Consolidents - About Restoration

Adhesives and Consolidents
Beva · Lascaux · Cellulose · Rhoplex · Bostik Web Glue Sticks · Starches · Zen Paste · Yes
Paste · Good Glue Hide Glue · Isinglass Sturgeon Glue · Jade 403N Polyvinyl Acetate &
Alcohol · Epoxy Adhesives · Epoxy Putties · Bulking Additives · Fillers · Tapes
BEVA��ADHESIVES
1. Beva� 371 Solution
BEVA� 371 Solution was developed by Gustav A. Berger in 1970. Solids make up 40% (by weight) of the adhesive solution
and are comprised of the following components: Ethylene vinyl acetate copolymer (Elvax 150), Cyclohexanone resin
(Lapropal K80), Ethylene vinyl acetate copolymer (A-C copolymer), Phthalate ester of hydroabietyl alcohol (Cellolyn 21), and
Petrolatum (Paraffin). Solvents make up 60% of the solution which is a combination of Toluene and Naphtha.
BEVA 371 Solution is especially useful for relining paintings and can be applied by brush, roller or sprayed to almost any
surface. For most applications, the solution (more like a gel at room Temperature) should be reduced by equal amounts of
naphtha or xylene. Complete instructions come with each can.
BEVA 371 Solution can be removed from absorbent surfaces by using hexane or acetone, provided these solvents do not
damage the art work involved. These solvents do not dissolve the adhesive but merely swell it, and therefore don’t
contaminate or stain absorbent materials.
2. Beva� 371 Film
BEVA� 371 Film is made of pure BEVA 371 Solution. The adhesive film comes sandwiched between two sheets of
silicone-coated Mylar release film. The BEVA 371 Film and its Mylar release sheets are completely transparent and
dimensionally stable. The transparent support allows the film to be cut precisely to any shape, and to place it exactly where
desired. This is particularly useful in the consolidation of collages and sensitive materials.
BEVA 371 Film is solvent free and does not adhere to anything before it is activated with either heat or solvents. It can be
inserted into loose areas, and delaminating paint can be properly aligned while the adhesive is inactive. The adhesive can
then be activated with a hot air gun, tacking iron or vacuum heat table at a temperature of 150� F or 65� C. The hot air gun
technique eliminates any staining and is least harmful to the texture of the painted surface.
BEVA 371 Film can be removed from absorbent surfaces by using hexane or acetone, provided these solvents do not
damage the art work involved. These solvents do not dissolve the film but merely swell it and therefore don’t contaminate or
stain absorbent materials.
BEVA 371 Film is available in rolls 27" and 54" wide and 20’ long (69 cm x 610 cm) in two different thickness. The standard
2.5 ml film is ideally suited for transparent linings on paintings such as Mylar and Lexan. The 1.0 ml film is equally useful for
paper conservators where it is desirable to use a thinner layer of adhesive such as with works of art on paper. Since it is not
a liquid, it can be applied to small, clearly defined areas without fear of spreading.

3. Beva� 371 Dry Resin Mix
BEVA� 371 Dry Resin Mix is the same product as BEVA 371 Solution but without the flammable solvents. The dry mix
comes in two containers, Part A and Part B. The two are prepared separately in a double boiler with toluene and benzine,
and then combined into one solution. This is a great product for traveling when solvent solutions are not permitted. You will
need to purchase the needed solvents when you reach your destination. To make one gallon of solution you will need 1000g
of Toluene and 800g of Benzine (naphtha). The dry resin mix comes with complete instruction.
4. Beva� Gel
BEVA� GEL is an aqueous dispersion of ethylene vinyl acetate and acrylic resins in a solution of water-soluble cellulose
materials. In its pure form, or diluted with water, BEVA GEL is an excellent water-based adhesive dispersion, easy to apply
by brush, roller or spray, with good slip and adhesion to a very wide range of surfaces. It is especially useful for cold lining of
paintings and remounting of murals to a wide variety of lining materials and substrates.
5. Beva� D-8
BEVA� D-8 is an aqueous, non-ionic dispersion which consists mainly of an ethylene vinyl acetate emulsified by a volatile
material which evaporates during drying, without leaving a residue. Application in dispersion permits the use of resins of still
higher viscosity and greater flexibility than BEVA 371. However, BEVA D-8 requires more aromatic mixtures for removal
than BEVA 371. Since it is an emulsion, it is sensitive to freezing, and should be stored with this in mind.
CELLULOSE ADHESIVES
1. Methocel A4CP
Methocel A4CP is not just any cellulose, it’s an extremely pure cellulose ether powder. This material is easily dissolved in
water to produce a neutral pH, water-soluble, adhesive paste with viscosity of 400 cps at 2%. It can also be used as an
effective thickener for many water-based solutions.
LASCAUX RESTAURO ADHESIVES
1. Lascaux Acrylic Adhesive 360 & 498
Lascaux Acrylic Adhesives 360 HV and 498 HV are thermoplastic copolymer butyl-methacrylate dispersions thickened with
acrylic butyl-ester. Lascaux Acrylic Adhesive 498-20X is the same thermoplastic copolymer butyl-methacrylate dispersion,
however it is thickened with 20% xylene. They are all water-thinnable, but insoluble in water after drying. Once dry they are
permanently soluble in acetone, toluene and xylene, but insoluble in White Spirit, VM & P Naphtha.
Lascaux Acrylic adhesive 360 hv is extremely elastic. The dry film remains permanently tacky, and can be used as a
contact adhesive when doing hot-sealing linings.
Lascaux Acrylic adhesive 498 hv has a strong elongation at break. It is a somewhat harder and not as tacky as
Lascaux 360 HV. It is suitable for wet and dry applications (reactivation with solvents). This is the standard type for linings.
Lascaux Acrylic adhesive 498-20X is especially suited for strip-lining.
Additional application information is available upon request.

2. Lascaux Welding Powder No. 5060
Lascaux Welding Powder No. 5060 is a thermoplastic resin (Nylon 12) with a melting point of 80� C and is used as a hot-
melt adhesive for textiles and leather. In conservation it is widely used for tear-mending of paintings on canvas. The tensile
strength is sufficient in most cases.
3. Lascaux Hydrosealer 750
Lascaux Hydrosealer 750 is a 30% aqueous dispersion of pure acrylic, solvent-free and of extremely fine particle size with a
pH value of 8. It is used as a impregnation sealer for consolidation of sanding or crumbling or otherwise not consolidated
grounds. For consolidation of loose paint layers, crackings or cuppings. Can be used as a heat activated adhesive. After
drying, Lascaux Hydrosealer 750 becomes insoluble in water like all acrylic dispersions, but remains reversible in acetone,
alcohol and aromatics such as toluene and xylene.
RHOPLEX��ADHESIVES
1. Rhoplex AC-33
Rhoplex AC-33 by Rohm and Haas is an aqueous emulsion of an acrylic polymer that produces film properties that are
flexible, non-yellowing and provide good adhesion to paper and fabric. Other properties are: pH of 9.4, solid content of 46%,
good pH stability and excellent freeze-thaw stability.
2. Rhoplex N-580
Rhoplex N-580 by Rohm and Haas is an aqueous emulsion of an acrylic polymer that produces film properties that are high
tack, flexible, non-yellowing and provides good adhesion to paper, fabric and hard-to-bond surfaces. Other properties are:
pH of 7.7, solid content of 55%, good pH stability. Rhoplex N-580 must be protected from freezing.
HMG glues and CSS b-72 glue
1. HMG, Acryloid B-72 Glue
HMG Paraloid B-72 glue is a solution of ethyl methacrylate copolymer and acetone. It’s made in England and is packaged
in a 3/4 oz. tube. It is a non-yellowing acrylic polymer used in the restoration of glass, porcelain, ceramic, wood, and much
more.
2. HMG, Heat and Waterproof Adhesive
HMG cellulose nitrate adhesive is comprised primarily of nitrocellulose. It’s made in England and is packaged in a 3/4 oz.
tube. It is virtually colorless and will resist yellowing for a long period of time. It can be used to bond pottery, wood, metal,
ivory, glass and more. This product does not set immediately, allowing realignment of glued material. Any excess glue may
be cleaned up with water.

3. CSS, Acryloid B-72 Glue
CSS Acryloid B-72 glue is manufactured at our facilities using reagent grade acetone and Acryloid B-72 resin to form a
50/50 solution. Our B-72 glue is packaged in both 8 fl oz. and one quart bottles.
Starch adhesives
1. Natural Starches
Natural starches come in many different forms. Starches make an excellent water soluble adhesive-paste for bookbinding,
hinging prints and repairing works of art on paper. The strength and physical properties of starch adhesives can be modified
by there blending with PVA, PVOH and Methocel A4CP adhesives. If needed, pH levels can be adjusted by the addition (3-
5% by weight) of precipitated calcium carbonate. Any modifications must be done after the starch is cooked.
Cooking of starches to form paste can be done in either a microwave in a deep bowl or on a hot plate in a double boiler.
Either way you choose, you must stir the mixture as often as possible or your end up with lumpy paste. If you use the
microwave, heat in short 20-30 second burst, stir, heat, stir and so on for 4-5 minutes. Either way you will have to
experiment with the proportions of starch to water, but a good starting point with any of the starches is 1 part starch to 4-5
parts of distilled water.
2. RICE STARCH (BELGIAN)
Rice Starch forms a clear, medium strength adhesive that is lighter and thinner than wheat starch. Rice starch must be
cooked to form an adhesive.
3. WHEAT STARCH
Our Wheat Starch makes a strong adhesive that is clear with a superior smooth texture. This wheat
starch must be cooked to form an adhesive.
4. WHEAT STARCH, pregelatinized (No Cook Type)
Pregelatinized Wheat Starch needs no cooking to produce a very strong and smooth paste. It can easily be dissolved in
room temperature water in just a minute or two.
5. JIN SHOFU WHEAT STARCH
Jin Shofu is Japanese precipitated wheat starch which after cooking produces what is considered by many conservators to
be the smoothest and best wheat paste available.
6. YES PASTE
Yes Paste is a starch paste that is made from corn dextrine, corn syrup, water and preservative. It has a pH of approx. 6.5.
It can be used for bookbinding, but is not recommended for use with photographic materials. It has been under scrutiny for
some years for yellowing. Many archivist recommend Golden Heavy Gel Medium or Lineco Neutral PH Adhesive. Scotch
Permanent Glue Stick is also acid-free. Polyvinyl Alcohol Adhesive does not yellow and remains flexible with age.

Hide, Rabbit & sturgeon Glues
1. Hide and Rabbit Glue
Hide Glues or animal glues are essentially natural high-polymer proteins. These organic colloids are derived from collagen,
which is the protein constituent of animal hides, skins, connective tissue, and bones (eew!). Animal glue is used in a wide
range of art conservation, restoration and gilding applications such as: furniture restoration, painting consolidants, china and
glass repair, canvas sizing and the making of gesso. Most animal glues have a dry moisture content between 11-14 percent
and range in pH from 6.5-7.5. Although our high test technical gelatin #5A is an animal hide glue, it is classified as a
technical gelatin because of its extra high purity that yields a cleaner, stronger glue.
Glue Type Gel-Strength Form
Hide Glue #5A 444 grams Granular
Rabbit Skin, French Pebbles 500 grams Pebbles
Rabbit Skin, French Sheets 500 grams Sheets
2. Sturgeon Bladders (Isinglass glue)
Isinglass Sturgeon Glue comes from the gallbladders of the Russian sturgeon. The sturgeon gallbladders are a by-product
of the caviar industry. Making sturgeon glue from the gallbladders is a somewhat lengthy but simple process of soaking
the bladders overnight, heating over a double boiler, then straining the mix through a gauze filter. Once you have completed
this procedure, you will have an exceptional glue. Complete instructions come with each order.
3. Gelatin, Granule and Sheet
We offer two forms of gelatin. Our granule gelatin is U.S.P. /N.F grade. It comes in the form of a coarse powder and is off
white in color.
Our sheet gelatin is clear in color which makes a clear solution when dissolved in water. The sheets are amber/clear in
color and are embossed with 80 diamonds that allows for easy measurement. A two diamond section is equivalent to a 00
capsule.

Epoxies
1. Hxtal NYL-1 Epoxy
Hxtal NYL-1 Epoxy is a crystal clear, non-yellowing, two part epoxy resin system. Unlike other epoxies that where made for
hobby, home and industrial uses, Hxtal was designed especially for restoration. It can be used on glass, porcelain, marble,
wood, metal and much more. Hxtal can be colored, or filled to match porcelain.
The use of Hxtal is not limited to an adhesive, but is also an excellent porcelain glazing medium that can be applied by hand
brush or airbrush. When using Hxtal in this application you may need to thin it for proper spraying. It can be thinned with
toluene, xylene and many other thinners including the lower aromatic solvents such as some of the Shell solvents or
combination thereof. You will need to experiment with the type of solvent combinations and dilution level that best meets
the needs of your particular application.
Hxtal fully cures in approximately 5-7 days at room temperature (75��
� F). Several steps can be taken to speed up the curing process. Raising the temperature surrounding a repaired artifact to
90-100��
� F for 12 hours or so can cut the cure time to approx. 1-1/2 to 2 days. Raising the temperature of the artifact being repaired
to 130-140��
� F prior to applying Hxtal will reduce cure time. Be careful whenever heating an artifact to these temperatures, previous
restoration treatments may have used materials that do not behave well at elevated temperatures. Catalyzed Hxtal
raised to the temperature of 120-130��
� F for fifteen to twenty minutes prior to use will decrease curing time to as short as a 5-8 hours. Remember, when heating
catalyzed Hxtal, stir (a Teflon Policeman works well) the mixture throughout the heating process. It is always best to heat
the epoxy slowly and evenly. This is best done in a water bath or in other mediums such as a heated sandbox never letting
the temperature go above 150��
� F. Over-elevating the temperature of Hxtal can have side effects such as an increased chance of yellowing and loss of
adhesive strength. Short elevated temperatures will reduce the viscosity of Hxtal. This can come in handy when trying to
getting the epoxy into tight fitting joints. One bad side-effect from the thinner viscosity is that the epoxy may try to run out of
loose fitting joints.
Hxtal is measured by weight. This requires precise measuring that is best done using a digital or triple beam scale that
measures in 0.1 gram increments. To mix Hxtal, weigh 3 parts of resin to 1 part of catalyst (3:1). If you don’t have a scale,
Hxtal can be measured using syringes. Both the resin and catalyst of Hxtal weighs approximately the same, that is about 2
grams per CC or ml. Knowing this information, and that Hxtal is mixed 3 parts of resin to 1 part of catalyst, allows you to
use syringes to "Weigh" the proper amounts of resin and catalyst. The chart below can be used to find the proper mixing
proportions.
HXTAL MIXING PROPORTIONS
Total Hxtal NYL-1 needed Resin Part A Catalyst Part B
7 gr 6 cc 2 cc
14 gr 12 cc 4 cc
28 gr 24 cc 8 cc
Remember when using syringes, never, ever, cross contaminate your two source bottles of Hxtal by putting a syringe
used to measure resin into the container holding catalyst. We suggest you clearly mark or label both syringes.

If you mix too much Hxtal to be used at one time, the leftover amount can be stored in an airtight container or
syringe and placed in a freezer for up to a week or so. Just thaw it out and it’s ready to use.
Hxtal NYL- kit Resin / Part A Content Catalyst / Part B Content
60 gr 45 gr 15 gr
150 gr 112.50 gr 37.50 gr
2. Hxtal Crystal Plus
Hxtal Crystal Plus was formulated for the purpose of, but not limited to, creating large crystal clear epoxy casts.
Whenever one tries to mix large batches of most any epoxy, you run the risk of an exothermic reaction (excessive
heat generated by the chemical reaction of the resin and catalyst). This heat can cause the epoxy to discolor, damage
molds, and in some cases even catch on fire.
To reduce the possibility of an exothermic reaction, the manufacturer of Hxtal NYL-1 has created Hxtal Crystal Plus.
The main difference between the two Hxtal epoxies is that the catalyst for Hxtal Crystal Plus contains less of the
accelerator component that causes the epoxy to harden. This reduction of accelerator allows Hxtal Crystal Plus to be
used to make large castings with little chance of an exothermic reaction. In addition, the accelerator portion of the
catalyst is the part that causes yellowing of the epoxy. With the reduction of the accelerator component, Hxtal Crystal
Plus is noticeably clearer. This fact becomes quite clear the larger the cast.
Hxtal Crystal Plus is measured, mixed and handled similar to that of Hxtal NYL-1. When mixing and measuring this
epoxy simply follow all of the directions that apply to Hxtal NYL-1. Since Hxtal Crystal Plus contains less accelerator
it takes somewhat longer to cure. This longer curing time can be reduced by following the warming processes listed
for
Hxtal NYL-1.
If you already have Hxtal NYL-1 and want to make casts, you simply need to purchase Hxtal Crystal Plus catalyst. The
resin is the same for both Hxtal epoxies. In most cases, castings need a large volume of epoxy. It is therefore best to
purchase the "kit" which contains both resin and catalyst.
3. Epoxy Prep (Silane Coupler)
Epoxy Prep is a 0.5% solution of gammaaminopropyl triethoxy silane in isopropyl alcohol. This solution is used to
form better bonds between glass edges and Epoxy. Simply apply by brush or applicator swab to clean edge surfaces.
Allow the solution to evaporate dry and apply epoxy as usual.

EPOXY PUTTIES
1. A + B Epoxy Putties / Paste
A + B epoxy putties/paste is an epoxy compound with a 1:1 mixing ratio. Just cut what you need and mix by
kneading. It adheres well to wood, metal, plastic, glass and porcelain surfaces. It can be easily shaped before
hardening or after hardening, drilled, cut and sanded. It can also be tinted during mixing or painted after drying.
A + B 1 HOUR EPOXY PUTTY will set in about 1 hour to a finished color of white or gray. It is packaged in two 8 oz.
bars (1 bar each of resin and hardener).
A + B 10 MINUTE EPOXY PUTTY will set in about 10 minutes to a finished color of light tan. It is packaged
in two 4 oz. bars (1 bar each of resin and hardener).
A + B EPOXY PASTE will set in about 10 minutes to a finished color of white. Unlike the putties, the paste
is made for thinner surface fills. It is packaged in two 5 oz. tubes (1 tube each of resin and hardener).
2. Milliput Epoxy Putty
Milliput epoxy putty is especially made epoxy compound for the restoration of porcelain and other ceramics.
Milliput Superfine White has a very fine grain and pure white in color. Milliput Terra-Cotta has a fine to medium
grain. Both colors have a easy 1:1 mixing ratio. Just cut what you need and mix by kneading. Both of the
putties will set in about 1 hour. It adheres well to wood, metal, plastic, glass and porcelain surfaces. It can be
easily shaped before hardening or after hardening, drilled, cut and sanded. It can also be tinted during mixing, or
painted after drying. It is packaged in two 2-1/2 oz. bars (1 bar each of resin and hardener).
3. Pliacre Epoxy Putty
Pliacre epoxy putty is an epoxy compound with a 1:1 mixing ratio. Just remove what you need and mix by
kneading. The putty will set in about 1 hour to a finished color of light gray. It adheres well to wood, metal,
plastic, glass and porcelain surfaces. It can be easily shaped before hardening, or after hardening, drilled, cut
and sanded. It can also be tinted during mixing, or painted after drying. It comes packaged in two containers, 1
container each of resin and hardener.
4. Ciba Araldite AV 1253
CIBA Araldite AV 1253 sets in 20 minutes and is a mahogany colored carvable paste. Easily sanded, carved
and worked with woodworking tools. Recommended for repair and bonding of wood products. It is packaged in
two 2-12 oz. tubes (1 tube each of resin and hardener).

POLYVINYL RESINS
1. Polyvinyl Acetate Resins (PVA)
Polyvinyl acetate resins are widely used as both a consolidant and coating material for paintings, textiles, leather, and
paper. Acetone is the most common solvent for PVA resins, although most organic solvents will work. Since AYAB
is not currently manufactured in the USA, ours is made in Germany under the tradename of Mowilith 20.
Resin Type Resin Type
Softens @ °C
Mol Weight
Polyvinyl Acetate AYAA 151/66 83,000
Polyvinyl Acetate AYAB 84/28 8,200
Polyvinyl Acetate AYAC 90/32 12,800
Polyvinyl Acetate AYAF 171/77 113,000
Polyvinyl Acetate AYAT 187/86 167,000
2. Polyvinyl Alcohol Resins (PVOH)
Polyvinyl alcohol resins are most often dissolved in water.
Resin Type Hydrolysis Viscosity Mol Weight
Polyvinyl
Alcohol, Low
Mol. Wt
88 % 5 cps 10,000
Polyvinyl
Alcohol, High
Mol. Wt.
3. Pritt Glue Stick
88 % 46 cps 120,000
Synthetic adhesive in solid form, pH 10. For paper, board and fabrics. Glue sticks are only
designed to glue paper, card and felt together, as glue sticks are not as strong as some liquid
based variants. They can be used for craft and design, office use and at school. There are now
permanent, washable, acid-free, non-toxic, solvent free, and dyed (e.g. to see where the glue is
being applied easier) varieties.

PVA ADHESIVES
PVA Based Adhesive Product Information
1. CSS-PVA/1100 CSS-PVA/2091 Jade 403N
CSS-PVA/1100 CSS-PVA/2091 Jade 403N
Solids Content: 40-42% 54-56% 50-52%
Viscosity (CPS): 2,550-2,650 1,450-1,550 1450-1550
pH: 4.5-5.8 4.8-5.5 5.5-6.0
Plasticizers: Very Low Yes Yes
Set Speed: Fast Fast Fast
Freeze Stable: No No No
Dry Film
Properties:
Gloss High Medium Medium
Clarity Clear Medium Medium
Heat Activatable Yes Yes No
Reversibility Water Water Water
Dry Methyl Alcohol No No
2. Jade 403N Adhesive
Jade 403N is a very good general purpose adhesive based on Vinyl Alcohol / Vinyl Acetate Copolymer. It has excellent
aging and yellowing properties.
3. CSS PVA-1100 Adhesive
Our 1100 is a great bookbinding adhesive based on Vinyl Alcohol / Vinyl Acetate Copolymer. It has very good flexibility
along with excellent aging and yellowing properties.
4. CSS PVA-2091 Adhesive
Our 2091 is a very good general purpose adhesive based on Vinyl Alcohol / Vinyl Acetate Copolymer. It has excellent aging
and yellowing properties.

AQUAZOL WATER SOLUBLE RESINS
Aquazol
Aquazol has found its way into every area of conservation. The conservators that have contacted us about this water
soluble resin tell us it can be used as an adhesive, inpainting medium, consolidant, binder, and an excellent replacement for
hide glue in gesso. The resin is based on the component Poly (2-ethyl-2-oxazoline). It can be used in diverse applications,
particularly where water-solubility and thermal stability are desired. Aquazol has broad solubility in water and polar organic
solvents such as Toluene, MEK, Acetone, Ethanol, Methanol. Aqueous solutions have a neutral pH.
Unlike other resins that are comprised of many hazardous components, Aquazol resins have very low toxicological and
environmental characteristics. In fact, these resins are safe enough they are approved for indirect food additives.
Resin Molecular Wt.
Aquazol 50 50,000
Aquazol 200 200,000
Aquazol 500 500,000
HOT MELT ADHESIVES
1. Bostik Web Adhesive
Bostik web adhesive is a hot melt adhesive in open-net form that handles like a fabric. This material will fuse to cottons,
synthetics, leather and paper. The web adhesive is white in color and weighs approx. 20 grams per square yard. It will
soften at approx. 268��
� F to form a micro-thin layer of adhesive film. This can be easily done with a tacking iron.
2. 3M Hot Melt Glue Sticks
3M’s hot melt glue sticks are translucent white to clear in color. They are comprised of ethylene vinyl acetate (65%), and
hydrocarbon resin (30%). These sticks are 12" long with a 1/2" Dia. They will fit almost any standard hot glue gun. 14 glue
sticks equals one pound, 70 sticks equals 5 lbs. and 154 sticks equals 11 lbs.

BULKING AGENTS and EXTENDERS
1. Glass Micro-Balloons
The 3M - K15 Scotchlite Micro-Balloons are high-strength microspheres that are composed of water-insoluble, chemically
stable, soda-lime/borosilicate glass. They are nonporous making them ideal filler in most resin systems. For weight to volume
reference, 2 oz. = quart container, 4 oz. = ½ gallon container, 8 oz. = one gallon container, and a 1 kg container is the size of a
box 9 " x 9 " x 9 ", and a 5 lb container is the size of a box 12 " x 12 " x 12 ".
2. CAB-O-SIL Fumed Silica
Fumed silica is a very fine amorphous silica made by the combustion of silicon tetrachloride vapor with oxygen and
hydrogen. The highly thickening properties of fumed silica makes it useful for increasing the viscosity of many liquids.
Fumed silica can be used in many resin systems, adhesives and coatings. The specific surface area of this material is
380 m2/g. For weight to volume reference, 8 ounces of fumed silica fill a one gallon container.
3. Marble Flour
Our marble flour has a average particle size of 2.5 microns and is bright white in color.
4. Titanium Dioxide
Our Titanium Dioxide has high brightness and whiteness with neutral color tone. It is controlled to be free from coarse
particles and has a uniform particle size distribution.
TAPES
1. Polyester Tape
3M’s #415 double coated polyester tape is comprised of a polyester carrier that is coated on both sides with an acid-free
adhesives. #415 tape is ideal for use in polyester encapsulation. Mostly sold per 3 meters.
3M’s #850 single sided polyester tape is similar to #415 but only coated with adhesive on one side.
2. #924 Adhesive Transfer Tape
#924 Adhesive Transfer Tape is not really a tape, but a thin film of adhesive on a release liner. It can be used in many
cases to replace the more expensive tapes like #415. It’s great for making Mylar enclosures.
3. Pressure Sensitive Linen Tape
Our Self-Adhesive Linen Cloth Tape is an extra strong linen cloth coated with a neutral pH acrylic adhesive of archival
quality. Its high thread count and lack of fillers make it an excellent choice for numerous archival hinging requirements. It is
well suited for hinging mats, particularly hinging heavy pieces of art work. Additionally, it is a superb book or spine-hinging
repair material. Reversible with mineral spirits.

4. Acid-Free Gummed Linen Tape
Our gummed linen tape is water activated and is made with a 64/52 thread count fabric that provides superior strength for
hinging, mounting, or repair applications. The adhesive is made from carbohydrate and protein that is acid-free and neutral
pH. The tape is reversible with water and has excellent tack and lay-flat properties. Available in both white and gray color.
FILLERS
1. Beva Gesso
BEVA GESSO is a highly elastic putty capable of following the movements of the substrate, thus solving an age old problem.
Combining a compressible, inert mineral powder, oxidation inhibitors, UV stabilizers, a buffer to maintain a non-acidic pH and
BEVA resins, CPC has formulated a stable gesso reversible with heat or with mild hydrocarbons solvents. BEVA GESSO
adheres to wood, plastics, metals, paint, etc. It may be tinted with dry pigments. Smooth and flexible, it can be shaped or
textured while wet or with heat when dry. Available as BEVA GESSO-p, fine textured (dries white in color) and BEVA GESSOv,
medium textured (dries beige in color). BEVA GESSO accepts all currently used media (oil, alcohol, or aqueous). Can be
burnished and gilded.
2. Polyfix and Polyfilla
Polyfix Ready Mix is ready to use as a fine surface filler ideal for smoothing surface imperfections. When filling deeper
imperfections use several thin coats. It can be applied on most porous surfaces. Polyfix Ready Mix is non-sagging, has little
shrinkage, dries white in color and can be sanded when dried. Polyfix Ready Mix is available in 2, 8 and 16 fl. oz. containers.
Polyfilla Patching Plaster is a cellulose fiber reinforced plaster. Polyfilla is a medium for sculpturing, modeling and relief
work. It easily mixes with water to provide a white, non-shrinking, slow setting filler which sands easily when set. The mixing
ratio is 1 part water to 2 parts Polyfilla. Two pounds of Polyfilla will make approx. 1 quart of mix. Always add dry Polyfilla to
the water, not the other way around. Working time is 40-60 minutes. Set time is 70-120 minutes.
3. Dap Vinyl Spackling Paste
DAP Vinyl Spackling is a ready to use filler. It is useful as a fine surface filler on most porous surfaces. As usual, deep fillings
may require two or more applications. It's a non-sagging, non-shrinking paste that dries white in color. Once dried, it can be
sanded and painted. It cleans up with water while wet and is water reversible after drying.