High Strength Polymer Modified Crack Resistant Mortar | Durable Repair & Protection Mortar for Concrete Surfaces

Q3’s built-in fiber network restrains wall shrinkage and thermal deformation, solving the common cracking defect of exterior thermal insulation surface layers. With ≥0.4MPa stable bonding strength, it locks firmly on aerated blocks and smooth concrete walls without hollowing. P6 high impermeability grade blocks rainwater penetration, plus outstanding freeze-thaw resistance to protect facade decorative coatings under all seasons.

99% ultra-high water retention ensures complete cement hydration even on highly absorbent AAC lightweight blocks, avoiding dry-out weak layers during plastering. The anti-sag silky slurry suits vertical walls and ceiling overhead construction without sliding. It acts as universal leveling base for latex paint, stone paint and tile works, one material meets both interior and exterior plaster demands to simplify material procurement.

Standard construction steps: clean & roughen substrate → pre-wet to saturated surface dry state → mix powder-water at fixed proportion, mature 2–3 mins before use → layered plaster (single coat ≤10mm, multiple coats for thickness over 15mm) → start water curing 4–6h after final set, keep wet for minimum 7 days. Mixed slurry must be finished within 1.5 hours without re-watering. Factory uniform pre-blending ensures stable strength, anti-crack and waterproof performance for residential, commercial and industrial facade projects.