Product details

Kun De 145# Marble Mineral * Fireproof & Impermeable * Two-Component Special Mortar for Concrete is a high-performance modified mortar, mainly used for surface construction of concrete structures in buildings that require high impermeability. It features high strength, fast hardening, excellent adhesion, strong crack resistance and other properties

Main ingredients: Inorganic matter ≥99%

Main parameters: Water retention rate 99.8%; Impermeability pressure (7d) 1.1Mpa; 14d tensile bond strength 0.76Mpa; 28d compressive strength 9.9Mpa; 28d shrinkage rate 0.13%; Freeze-thaw strength loss rate 13%; Mass loss 2%; Radioactivity 0.11Ra, 0.3Ir.

Suitable for concrete shear walls, beams and columns, floor surfaces, roof surfaces and other cement-based ready-mixed mortar applications in construction projects, as well as for flat and vertical surfaces of indoor and outdoor concrete structures, underground works and other scenarios.

Kun De 145# Marble Mineral * Fireproof & Impermeable * Two-Component Special Mortar for Concrete

This product is a two-component special mortar for concrete base surfaces, suitable for scenarios such as cast-in-place walls, basements, floor slabs and ground surfaces.

• Strong Adhesion
• Waterproof and Moisture-Proof
• Fireproof and Impermeable

This product is a two-component special mortar for concrete. Please follow the steps below before construction.

Pre-construction Preparation

• Store in a dry indoor place, avoid moisture.
• Ensure the base surface is clean, flat, free of oil stains and loose particles; construction is allowed on damp bases, but not on bases with standing water.
• The wall base shall be solid, free of hollowing, and its flatness shall meet specification requirements.
• The wall does not need to be pre-wetted before use, and no curing is required after construction.

Batching and Mixing

• The water ratio is A:B:Water = 3:1:0.8. Depending on the ambient temperature, the water consumption can vary by 10%–15%.
• Mixing sequence after opening the materials: First add water in proportion → Add Component B → Mix evenly → Add Component A → Mix evenly.
• After mixing evenly, let the material stand for full reaction: Mix for 3 minutes → Let stand for 2 minutes → Mix again for 1 minute.

Trowel Application

• The second coat can be applied after the first troweled coat is fully dry for about 7 hours.
• Use up the mixed material within 120 minutes after preparation; do not add water again during construction.
• The recommended plastering thickness is no more than 15mm, with an optimal thickness of 5mm.

Usage Reference

• When the thickness is about 3–5mm, the usage amount is about 4.35–7.25kg/m².
• One set of materials (Component A 15kg + Component B 5kg = 20kg) can cover approximately 2.7–4.5m².