01Overview
Ordinary Portland Cement（OPC）
Black cement (Ordinary Portland Cement P·O42.5) serves as the core binding material for exterior and interior crack-resistant mortars. It delivers exceptional bonding strength and compressive resistance, along with outstanding water and freeze-thaw resistance, enabling firm anchoring of mesh fabrics to enhance crack resistance and impact resistance. The recommended dosage is 25-35% for exterior crack-resistant plaster mortars and 20-30% for interior applications. For optimal performance, it must be modified with redispersible latex powder and polypropylene fibers; raw materials affected by moisture and caking are strictly prohibited from use.
Model：Ordinary Portland Cement（OPC） Category：Dry-Mix Building Additives
02Introduction
Ordinary Portland Cement（OPC）
Black cement (Ordinary Portland Cement P·O42.5) serves as the core binding material for exterior and interior crack-resistant mortars. It delivers exceptional bonding strength and compressive resistance, along with outstanding water and freeze-thaw resistance, enabling firm anchoring of mesh fabrics to enhance crack resistance and impact resistance. The recommended dosage is 25-35% for exterior crack-resistant plaster mortars and 20-30% for interior applications. For optimal performance, it must be modified with redispersible latex powder and polypropylene fibers; raw materials affected by moisture and caking are strictly prohibited from use.
03Features
Introduction
As the core binding material, it provides superior adhesion and compressive strength for stable mortar attachment.
It features excellent water and freeze-thaw resistance, ensuring long-term wall stability in harsh environments.
It firmly anchors fiber mesh, greatly enhancing the crack and impact resistance of walls.
The recommended dosage for exterior wall crack-resistant mortar is 25-35%, and 20-30% for interior walls for optimal performance.
04Specifications
Technical Specs
| CAS Number | 65997‑15‑1 |
| Molecular Formula | 硅酸钙类复合混合物 |
05Applications
Applications
Coatings, water-based paints, stone paints, putty, mortar, fireproof coatings & building material systems
06Related
Related Products
07More Categories