Vapor Retarder Primer VC
Vapor Retarder Primer VC is a VOC compliant, solvent-based primer used to prime approved substrates prior to the application of Sika’s self-adhered vapor retarders.
- Enhanced adhesion strength between primed substrates and Sika’s self-adhered vapor retarders
Usage
Primer used prior to the application of Sika’s self-adhered vapor retarders. AREAS OF APPLICATION- Wood
- Concrete
- Lightweight concrete
- Gypsum decks
- Approved gypsum boards
Advantages
- Enhanced adhesion strength between primed substrates and Sika’s self-adhered vapor retarders
Packaging
5 gallon (18.9 L) pails, 39 lbs (17.7 kg) per pail, 36 pails per pallet
Colour
Green
Product Details
APPROVALS / STANDARDS
- FM Global
Chemical Base
Solvent-based liquid
Shelf Life
Vapor Retarder Primer VC has a shelf life of up to 60 months in the original sealed container
Storage Conditions
Store in a tightly closed container in a cool ventilated area. Store away from direct sunlight and open flame
Density
0.94 kg/L at 77°F (25°C)
Viscosity
300 – 600 cP at 77°F (25°C)
Volatile organic compound (VOC) content
0 g/L (according to EPA rules)*
240 g/L (according to SCAQMD rules)*
476.3 g/L (without any exemptions)*
* The U.S. EPA considers the solvents in Vapor Retarder Primer VC as “exempt”, and therefore the product’s VOC content can be considered “0 g/l” and used in all jurisdictions operating under the EPA guidelines. At this time, the SCAQMD does not recognize the TBAc solvent as “exempt”, and therefore the primer’s VOC content is “240 g/l” when used in jurisdictions operating under their guidelines (e.g. specific counties in CA). Vapor Retarder Primer VC is eligible for credits in LEED or Green Globes projects.
Application
Drying Time
30 - 90 minutes depending on temperature and quantity applied
Coverage
The coverage rate will range from 104 – 208 ft2/gal (0.2 – 0.4 L/m2) on porous surfaces to 166 – 416 ft2/gal (0.1 – 0.25 L/m2) on non-porous surfaces
SUBSTRATE PREPARATION
All surfaces should be clean, dry, free of dirt, dust, debris, oils and other contaminants.
MIXING
Vapor Retarder Primer VC must be mixed well before use. Do not dilute.
APPLICATION
Apply the primer with a brush or roller and allow primer to dry completely before applying Sika’s self-adhered vapor retarder. Install Sika’s self-adhered vapor retarder on the same day as the application of Vapor Retarder Primer VC.