CONSTRUCTION CHEMICALS

MegaFilm BB
High Performance Exposed Concrete Primer
PRODUCT DESCRIPTION
Polymer emulsion based exposed concrete primer with filling, which does not contain solvent
and is used as binder for the purpose of application of cement and plaster based mortars on
such surfaces as exposed concrete, wall and ceiling.
• The product should not be applied in rainy weather conditions, and the application surface
should be preserved from rain for a period of 12 hours.
• Refer to our technical support hotline for recommendation on different surface applications.
(PHONE: 444 4 595)
AREAS USE
MegaFilm BB is used as binder for the preparation of such surfaces as exposed concrete and
trowel coating for pre mortar application and under the cement based mortars on concrete
surfaces with satin plaster. It is suitable for use on indoors and outdoors horizontal and
vertical surfaces and on ceilings.
PRODUCT ADVANTAGES
• Ensures a binder rough surface for exposed concrete surfaces.
• Prevents the dusting on the surface.
• Enhances the surface adherence of the material to be applied subsequently.
• Prevents the water loss of the material to be applied subsequently, and ensures longer
workable life.
• Applied easily and rapidly.
• Free from solvents and environmentally friendly.
REFERENCE STANDARDS
Certifications/Standards
TSE K 208
Ministry of Public Works and Settlement Item No.
Ministry of Public Works and Settlement Item No.: 04.613/1i
QUALITY CERTIFICATES
Conformant to TSE K 208.
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APPLICATION PROCEDURE
Application Surfaces
Indoors Walls;
- Cement based plaster
- Exposed concrete
- Concrete
- Betopan
- Plasterboard
Indoors and Outdoors Floors;
- Cement based trowel coating
- Exposed concrete
- Concrete
Outdoors Walls;
- Cemen based plaster
- Exposed concrete
- Concrete
- Betopan
Surface Preparation
• The application surface should be dry, clean, sound and dust free, and should have been
cleansed of oil, dirt or any materials that may prevent adhesion, and any such materials as
mortar and cement residues should be scraped from the application surface.
• The surface defects, which are deeper than 1 cm, should be repaired with MegaTamir İ or
MegaTamir K 24 hours in advance. In the cases, where structural repair mortar should be
used; MegaTamir İ Yapısal or MegaTamir K Yapısal should be preferred.
Application Methods
• MegaFilm BB should be shaken prior to application, and be, then, applied to the surface
homogenously with a brush or a roller.
Application Recommendations
• The product should be kept homogenous by, where necessary, stirring it intermittently
during the application.
• The product should, once mixed, be used before the expiration of its pot life. Any product,
the pot life of which has expired, should not be used during the application.
• Any such foreign substance as lime, cement or plaster should not be added to the product
prepared.
• Any extra water should not be added to the mixture.
• The product should not be applied on unsound surfaces. The soundness and the load
bearing capacity of old surfaces should be checked prior to adhesion.
• The surface should be preserved from air currents and water contact during the application.
• The product should not be applied to such surfaces, which are exposed to risk of freezing
within the next 24 hours, which are frozen or the frost of which is thawing.
• Due care should be taken to ensure that the material is not exposed to direct sunlight in hot
weather conditions, and the product should be mixed with cold water.
• The product should not be applied on extremely windy weather conditions or on hot surfaces,
which are exposed to direct sunlight; and in the cases, where application is imperative under
such conditions, the environment and the surface should be prepared for application in
advance.
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Surface and Ambient Temperature
The surface and ambient temperature should be between +5°C and +35°C whilst at
application.
Application Limits
Useful time for prepared product - Pot life
Stand by period between coats
Required stand by period for final coat
The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C
temperature and 50% ± 5 relative humidity conditions. The values provided as per the table
may vary depending on the surface and ambient conditions.
APPLICATION INSTRUCTIONS
Mixing Ratio
The product should be mixed with water, weighing equal to 33 % of the product. (5 liters of
water for a 15 kg package)
Mixing Equipment
• Low speed electrical mixer (400 cycles/min.)
• Special tip stirring equipment
Mixing Period
• The product should be mixed for 2 to 3 minutes until a homogenous mixture is obtained.
• The product should be kept homogenous by stirring it intermittently during the application.
Application Equipment
• Brush
• Roller
Equipment Cleaning
The equipment used should be cleaned with water following the application before the
product dries.
TECHNICAL PROPERTIES
Chemical Structure: Polymer emulsion based primer with filling
Density: 1.50 ± 0.05 gr/cm 3
pH: 8 - 9
Color: Pink
CONSUMPTION
Recommended consumption amount for water diluted application on 1 m 2 surface is 0.20 -
0.30 kg. The said value may vary, depending on the surface and ambient conditions.
PACKAGING
MegaFilm BB is delivered in net 15 kg plastic buckets.
Maximum 1 hour
Minimum 1 hour
Minimum 3 hours
SHELF LIFE
The shelf life of the product is 12 months when stored within non tampered original
packaging in dry (maximum relative humidity 60 %) and cool (ambient temperature between
+5°C and +25°C) environment.
STORAGE CONDITIONS
The product should be stored within non tampered original packaging in dry (maximum relative
humidity 60 %) and cool (ambient temperature between +5°C and +25°C) environment.
It should not be exposed to direct sunlight.
The container of the product should be closed firmly when not used.
SAFETY PRECAUTIONS
Please refer to the Safety Data Sheet (SDS) as appropriate for easy and safe application.