Rapid Set Mortar Mix 25 lb. (Model 25RSM)

Rapid Set Mortar Mix 25 lb. is a high-performance, fast-setting repair mortar engineered for professional patching and resurfacing. Formulated as a Type S blend, it delivers up to 6500 PSI compressive strength in just one hour, allowing for quick turnaround on vertical and horizontal concrete repairs. Whether you’re filling cracks, rebuilding damaged edges, or applying a single-coat stucco finish, you can go from ½″ to 6″ thickness in a single pass without slumping or shrinkage.

Key Features

• Fast set time: initial cure in approximately 1 hour
• Exceptional durability: 6500 PSI compressive strength
• Versatile use: ideal for vertical and horizontal applications
• Heavy build: apply ½″–6″ in one pass
• Type S mortar: strong bonding with minimal shrinkage
• Meets ASTM C387 specifications