Purpose LANGUAN 670 is a water-based polymer primer dedicated to pre-processing non/low-water-absorption substrates prior to self-leveling cement pouring. It penetrates deep to consolidate loose base layers and forms textured adhesive film, eliminating common construction defects to guarantee qualified self-leveling floor systems.
This primer fits all indoor residential, commercial and office floor renovation projects with smooth hard substrates. Applicable Base Surfaces: Ceramic tile floors, Terrazzo ground, Metallic aggregate flooring, Old epoxy resin floors It must be coated on above smooth non-absorbent bases as mandatory pre-treatment before pouring self-leveling cement.
It integrates penetration reinforcement and surface sealing to boost interlayer adhesion, blocks air overflow to avoid bubbles, balances uneven substrate absorption to prevent shrinkage cracks, dries fast within 1–3 hours with roller or brush construction. The eco-friendly water-based formula is non-toxic, odorless and non-flammable; it has ≥17% solid content, reduces substrate water absorption by over 90%, and maintains stable bond strength after water immersion and heat aging. Tools can be cleaned with water directly, and it supports indoor frost-proof storage with a 6–12 month shelf life.
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