SL-Primer™
Self-Leveling Underlayment Primer
Product overview
SL-Primer is specifically designed for use with Bostik’s line of self-leveling underlayments and patches. This high solids latex primer effectively seals porous substrates, ensuring a strong bond between the underlayment and the subfloor. SL-Primer is versatile and can be applied over concrete and exterior-grade plywood substrates. Choose SL-Primer for a reliable and efficient solution to enhance the performance and adhesion of your self-leveling underlayments and patches.
Geographic availability
- United States
Available sizes
1 gallon jug - 4/case
4 gallon pail
Smart Advantages
Seals porous substrates
Fast drying
Low VOC, water-based formulation
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TDS
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Brochure
Latest news
Apr
14
2025
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Next events

Bostik Academy
Flooring Surface Prep & Adhesives
Flooring Surface Prep & Adhesives
September 24 - 25, 2025
Bostik Academy - Temecula
27430 Bostik Ct.
Temecula, CA 92590
27430 Bostik Ct.
Temecula, CA 92590
Presented by Bostik, learn about our innovative surface prep, tiling, hardwood and resilient ...

Bostik Academy
Flooring Surface Prep & Adhesives
Flooring Surface Prep & Adhesives
August 20 - 21, 2025
Bostik Academy - Temecula
27430 Bostik Ct.
Temecula, CA 92590
27430 Bostik Ct.
Temecula, CA 92590
Presented by Bostik, learn about our innovative surface prep, tiling, hardwood and resilient ...
Product Features
- Roll, broom or spray application
- Water-based and VOC compliant
- Very low odor
- Small particle size for excellent penetration
- Excellent bond strength and fast penetration
- Can be applied to green concrete a minimum of 7 days old
- Contributes points to LEED® certified projects