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