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MiraPatch RM1

MiraPatch RM1 is a two-component, polymer-modified, cementitious, trowel-grade concrete repair mortar and high performance underlayment for Miracote and other subsequent finished flooring installations. Designed primarily for horizontal applications, MiraPatch RM1 can be applied from near feather up to 3/4” in thickness. It can also be used in vertical and overhead applications when repair methods using formwork are being utilized. For applications greater than 3/4” in depth, extend MiraPatch RM1 with coarse ¼” (3/4” to 1”) or 3/8” (>1”) clean aggregate to produce MiraPatch RM1 concrete which will enhance dimensional stability.

Product families

Applications

Building & Construction — Infrastructure, Roads & Paving
  • Repair & Rehabilitation

Product Families

Ready-to-Use Products — Construction Materials
  • Mortar & Grouts

Other characteristics

Brand
MiraPatch
Features

Abrasion Resistant, Dimensional Stability, Excellent Flexural Modulus, Freeze/Thaw Stability, Good Compressive Strength, High Performance, High Tensile Strength, Salt Resistance

Product Type
Mortar
Application Area
Masonry
Application Method
Trowel
Usage

Concrete repairs on grade, above and below grade.; Horizontal, vertical and overhead surfaces.; Interior and exterior service conditions.; Structural repair applications.; Resurfacing and overlayment for concrete.; To level, pitch or slope irregular concrete surfaces.

Markets
Building & Construction
Mix Ratio
(2/3) Gallon Liquid to (1) 50 lb. bag of powder.
Advantages

Low slump, trowel-grade consistency.; High abrasion resistance.; Excellent freeze/thaw & de-icing salt resistance.; Ideal trowel-applied mortar for horizontal surfaces.; Suitable for use in cast-in-place repair methods.; Two component – high polymer-to-cement ratio.; High compressive, flexural and tensile strengths.; Tenacious adhesion to prepared substrates.; Extendable with coarse aggregate for repairs > 3/4".; Zero VOC - contributes to LEED credits.; Meets USDA and FDA compliance standards.

Limitations

Concrete surface repair dimensions including overall length, width, depth and shape need careful consideration, and should be in conformance with ACI recommended standards of practice.; Mechanical surface preparation methods may require additional testing to verify substrate tensile strength in accordance with ICRI Guideline No. 210.3R-2013 (Guide for Using In-Situ Tensile Pull-off Tests to Evaluate Bond of Concrete Surface Materials).; Extension with coarse aggregates may alter the physical properties of MiraPatch RM 1 as published.; Do not use solvent based curing compounds.; As with all cement based materials, avoid direct contact with aluminum to prevent an adverse chemical reaction. Refer to MiraPrime AL for an appropriate primer.

Technology
Ready-to-Use Products
Packaging Type
Pails
Labeling Claims
VOC-free
For Best Results

Always install a minimum 4' by 4' test area or job site mock up for owner approval of acceptable color, texture, finish adhesion and any other critical requirements prior to proceeding with the installation.; Verify that the most current versions of product technical data sheets (PTDS), color charts, material safety data sheets (MSDS), and installation guidelines (IG) are being utilized for project submittals and application reference.; Protect materials at all times from excessive heat and cold, and pre-condition material as required in adverse conditions.; As per ACI recommendations for Portland cement concrete, curing is required in order to meet published physical properties. Moist curing with burlap/polyethylene or burlene is the preferred method. A compatible waterbased curing compound is also acceptable, but may require removal prior to the application of subsequent coatings or other materials.; The proper application of this product is the sole responsibility of the end user. Job site visits by Miracote representatives are only for the purpose of making recommendations. Supervision and quality control are the sole responsibility of the user.; Measure surface and ambient temperatures to ensure that material is only applied when temperatures are 45° F (7° C) and rising during placement and time of application.

Technical data

Table 1 of 1

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CharacteristicValueUnitMethod
Compressive Strength4140.0psiASTM C109
Tensile Strength800.0psiASTM C307
Flexural Strength1200.0psiASTM C580
Hardness (Shore D)70-75—ASTM D2240
Adhesion (100% Failure in concrete)min. 400psiASTM D4541
Indention Para (Steadily applied load, 2,000 lbs. On 1” steel ram imposed for 30 min.)2.26%MIL-D-3134
Adhesion (Shear from steel plate after 96 hours)305.0psiMIL-D-3134
Water Absorption3.14%MIL-D-3134
Impact Resistancemax. 0.01inchGardner Impact Tester
Initial Set1.0hourASTM C266
Final Set4.0hoursASTM C266

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