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All Categories > Concrete Repair & Protection > Miracote Repair Mortar > RM I Repair Mortar and Underlayment  
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RM I Repair Mortar and Underlayment

Miracote Repair Mortar I is a polymer-modified two-component smoothing and resurfacing compound for concrete floors and decks. Applied to any thickness from 3" to featheredge with superior adhesion to prepared substrates. Miracote Repair Mortar I has very high compression strength and it can be left exposed to industrial-type traffic or covered with almost any type of floor covering – carpet, resilient tile, even the very hard troweled resin floor systems. Compared to conventional concrete toppings, Miracote Repair Mortar I has greatly improved adhesion, greater abrasion resistance, less shrinkage, greater resistance to water and salt penetration, and better tensile strength. Miracote Repair Mortar I is Zero-VOC, virtually odorless, and environmentally safe. It requires no special training for installation and is easily handled by a handyman mason. It sets rapidly, can be applied over damp (not wet) surfaces, and can be installed at temperatures as low as 50°F (10°C).

Use Miracote Repair Mortar I for interior or exterior structural repair applications on spalled, deteriorated or scaling concrete decks and industrial floors. Miracote Repair Mortar I is specially designed to prepare concrete for Miracote polymeric floor finishes.

High-Build: can be applied from featheredge to 3" thickness.
Non-Shrinking: no cracks or fissures, same co-efficient of expansion as concrete.
Freeze-Thaw Resistant: water retardancy prevents cold weather scaling.
Simple to use: pre-portioned mixing.
Polymer-Fortified: self-curing and superior adhesion.
High Compressive Strength.


57.7 sq. ft @ 1/8 inch
28.8 sq. ft @ 1/4 inch
14.4 sq. ft. @ 1/2 inch
7.2 sq. ft. @ 1 inch
3.6 sq. ft. @ 2 inches
2.4 sq. ft. @ 3 inches

Item #

Product Name


Unit Quantity


MCRM1POW.375B RM 1 Repair Mortar Powder 37.5 lb Bag Per Bag 38 lbs. Per Bag
MCRMLIQUID.1G RM 1 Liquid 1 gallon pail Per Gallon In 1 Gallon Pails 10 lbs. Per Pail
MCRMLIQUID.5G RM 1 Liquid 5 gallon pail Per Gallon In 5 Gallon Pails 55 lbs. Per Pail


Miracote RM I Repair Mortar Product Data

Miracote RM I Repair Mortar Powder MSDS

Miracote RM I Repair Mortar Liquid MSDS