Chalky Wall Sealer™ is a high-performance clear acrylic primer and sealer for application on painted and unpainted chalky surfaces. It penetrates and bonds residual chalk making the surface primed and ready to be painted. If surface has already been painted it can still be used on top as a clear acrylic sealer. Chalky Wall Sealer is eligible for a three year Material Warranty.
- Flexible and breathable
- Helps prevent efflorescence
- Protects wood from swelling, shrinking, or grain raising
- Seals and binds chalked surfaces; improves adhesion of topcoat materials
- May be used on previously painted and properly prepared surfaces
- May be applied to concrete or stucco as a curing agent to promote hardening
- UV protectant
- 3 year material warranty
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1) Prepare Surface
To apply, surface moisture content must be less than 25% as measured with an electronic moisture meter. Surfaces must be free of dirt, grime, efflorescence, lime run, construction debris, form oils and release agents, chalked materials, loose and peeling paint, mold, mildew, etc. All cracks should be pointed or caulked. Do not apply if rain, snow, or temperatures below 40°F are expected within 48 hours. Do not apply if relative humidity is greater than 80%.
2) Apply Chalky Wall Sealer™
Horizontal Surfaces: Spray solution onto surface until product slightly pools.
Vertical Surfaces: Spray solution beginning at top of surface working downward in vertical sections. Allow solution to drip heavily and maintain a 6-8 inch rundown from contact point. For areas that dry more rapidly than others, apply a second light coat.
3) Let Dry
Product dries in 1 hour and fully cures in 24-36 hours.