Product Data Sheet Safety Data Sheet Show all documents
Sikalastic® Primer

Sikalastic® Primer

ONE-COMPONENT, HIGH SOLIDS, AROMATIC POLYURETHANE PRIMER

Sikalastic® Primer is cold applied, single component, low-VOC, moisture-curing polyurethane primer. It is designed for sealing cementitious substrate to reduce the incidence of outgassing. For use as a primer under Sikalastic Traffic & Waterproofing Systems on concrete, plywood, select metals and existing PU coatings.

  • Fast curing formulation
  • No mixing required
  • Compatible with most concrete, masonry, and stone substrate materials
  • Low-VOC formulation
  • Low temperature application
  • Reduces the likelihood of blistering and pin-holing
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Primer used for Sikalastic Traffic Coatings and Waterproofing Coating Systems.
  • Suitable for use on most sound substrate surfaces where both a penetrative and surface lying effect is required.
  • Can be used as a recoat primer over existing PU coatings.   Adhesion test is recommended. 
 

Advantages

  • Fast curing formulation
  • No mixing required
  • Compatible with most concrete, masonry, and stone substrate materials
  • Low-VOC formulation
  • Low temperature application
  • Reduces the likelihood of blistering and pin-holing

Packaging

5 gal. pails

Color

Light Amber

Product Details

Product Information

Chemical Base

Moisture cure polyurethane

Shelf Life

12 months in original, unopened containers

Storage Conditions

Store dry at 41–77 °F (5–25 °C).

Condition material to 50–77 °F (10–25 °C) before using for ease of application.

Volatile organic compound (VOC) content

See Product Safety Data Sheet

 
Technical Information

Chemical Resistance

Not intended for direct exposure

Application

Application Information

Ambient Air Temperature

min. 41 °F  / max. 95 °F

Substrate Temperature

min. 41 °F  / max. 140 °F

Cure Time

~45 minutes at 77 °F (25 °C) and 50 % R.H. Lower temperatures will extend cure time.

Recoat Time: Up to 72 hours

Consumption

Coverage

250 ft2/gal on prepared, dry concrete and masonry (CSP3 surface preparation)

225 ft2/gal to 300 ft2/gal; depending on substrate profile and porosity

Note: On porous/open substrates, apply as two coats, each at maximum spread rate of 275 ft2/gal

Application steps

MIXING

No mixing required.

APPLICATION

Apply Sikalastic® Primer by medium nap phenolic core roller or squeegee and backroll ensuring and even and consistent coverage. Ensure all excess material is removed by back rolling with no pooling or puddling of resin. Allow coating to cure ~45 minutes or until tack-free before proceeding with subsequent system.

Sikalastic® Primer must be overcoated within 72 hours, if this window is missed the primer must be abraded and solvent wiped followed by an additional coat of Sikalastic® Primer before proceeding. 

Removal

Remove liquid uncured resin immediately with dry cloth and do solvent cleanup. Once cured, resin can only be removed by mechanical means.

 

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