Sarnacol®-2170 VC Adhesive
Sarnacol®-2170 VC Adhesive is a solvent-based reactivating adhesive used for Sarnafil® or Sikaplan® Adhered roofing systems. It is also used within any Sika approved roofing or waterproofing system for adhering flashings. Sarnacol®-2170 VC Adhesive is formulated for adhering membranes in a two-step process to clean, dry, surfaces with no slope restrictions.
Usage
Sarnacol®-2170 VC Adhesive is uniquely formulated to be compatible with Sarnafil® and Sikaplan® membranes. Areas of Application Bareback Membrane Substrates- Isocyanurate organic facer
- Isocyanurate glass facer
- Smooth plywood
- Metal
- Concrete wall
- DensDeck®
- DensDeck Prime®
- Securock® Gypsum-Fiber
- Isocyanurate organic facer
- Isocyanurate glass facer
- Smooth plywood
- Metal
- Concrete deck
- Concrete wall
- Masonry wall
- Cellular concrete
- DensDeck®
- DensDeck Prime®
- Securock® Gypsum-Fiber
Advantages
Not applicablePackaging
18.9 L (5 US gal.) pails, 16.8 kg (37 lb) per pail, 48 pails/pallet
Colour
Milky yellow
Product Details
APPROVALS / CERTIFICATES
- FM Global
- Underwriters Laboratories
- Underwriters Laboratories of Canada
- ICC Code Compliance – ESR 1157
- Miami-Dade County
- Florida Building Code
- CSA-A123.21
Composition / Manufacturing
Liquid
Shelf Life
12 months if stored properly in original unopened, sealed and undamaged packaging.
Storage Conditions
Store in tightly closed containers in temperatures between -20 °C (-4 °F) and 30 °C (86 °F)
Volatile organic compound (VOC) content
0 g/L with exemptions*; 348 g/L without EPA exemptions
* The U.S. EPA considers the solvent in Sarnacol®-2170 VC Adhesive as “exempt”, and therefore the product can be used in all jurisdictions operating under the EPA guidelines. At this time, the SCAQMD does not recognize it as “exempt”, and therefore the adhesive cannot be used in jurisdictions operating under their guidelines (e.g specific counties in CA). 2170 VC is not eligible for credits in LEED or Green Globes projects.
Application
Consumption
The coverage rate may vary depending on substrate porosity, ambient temperature, and experience. The typical coverage rate for the following applications are:
- Bareback membrane: 5.3 m2 to 6.2 m2/L (57 ft2 to 67 ft2/US gal.)
- Feltback membrane: 4.1m2 to 4.6 m2/L (44 ft2 to 50 ft2/US gal.)
SUBSTRATE PREPARATION
All work surfaces should be clean, dry, free of dirt, dust, debris, oils and other contaminants.
MIXING
Mix well before use.
APPLICATION
General Application:
Apply Sarnacol®-2170 VC Adhesive using solvent-resistant 19 mm (¾ in) nap paint rollers in a smooth, even coating with no gaps, globs, puddles or similar inconsistencies. Clean any wet adhesive from the seams before welding.
Bareback Membrane Application:
Apply Sarnacol®-2170 VC Adhesive to the substrate at a rate of 2 - 2.5 m2/L (80 - 100 ft2/US gal.) and allow to dry. After the substrate adhesive has dried completely, apply Sarnacol®-2170 VC Adhesive to the back side of the membrane at a rate of 4.9 m2/L (200 ft2/US gal.), and allow to become tacky (producing strings) when touched with a dry finger. Do not allow the adhesive on the back of the membrane to dry. Roll the tacky coated membrane onto the previously coated dry substrate being careful to avoid wrinkles. Press the bonded sheet firmly in place with a minimum 45 kg (100 lb) steel roller by rolling in two directions. Use a hand roller on vertical flashings.
Feltback Membrane Application:
Apply Sarnacol®-2170 VC Adhesive to the substrate at a rate of 2 - 2.5 m2/L (80 - 100 ft2/US gal.) and allow to dry. Apply a second coat of adhesive at a rate of 2.5 m2/L (100 ft2/US gal.) to the previously coated dried substrate. Do not allow the second coat of adhesive to dry. Unroll the membrane immediately into the second layer of wet adhesive. Press the bonded sheet firmly in place with a minimum 45 kg (100 lb) steel roller by rolling in two directions. Use a hand roll on vertical flashings.