MCOR 4282 | mFlex HD Rubberizer

MCOR 4282 (mFlex HD Rubberizer) is a high durometer, 100% solids, applied urethane-acrylate epoxy hybrid flexible polymer for coating, lining, and applied rubberizing with zero-isocyanate. Incorporating a proprietary curing system, this urethane hybrid technology offers the market a safer, durable, more tolerant elastomeric system than older generation polyurethane technologies. This new generation of urethane-acrylate epoxy hybrid sealants undergo similar development of properties to (cold) vulcanizing which will produce higher strengths; in addition, higher moisture tolerance, increased UV resistance, better surface acceptance and adhesion, more stable and longer lasting shelf life without the concern of isocyanates.

The mFlex HD Rubberizer is a two component high performance elastomer specifically designed for high build applications of industrial rubberized need areas. Because of its high performance properties, it provides extraordinary sealed tolerances to chemicals, wear, abrasion, and degradation while exhibiting elongation, strength and robust industrial-grade coating, lining, sealing, padding/cushioning, encapsulation and rubberizing.




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  • Rubberized coating of pump and flow components
  • Rubberized coating and lining of tanks and handling equipment
  • Anti-cavitation system for propellers
  • Anti-vibration and shock absorbing
  • High build rubberized lining/coating
  • Impact cushioning and wear padding
  • Flange and other component encapsulation
  • Hard durometer castable rubber


  • Isocyanate-free, no VOCs
  • “Cold” curing alternative to vulcanized rubber
  • Excellent UV resistance
  • Terrific adhesion
  • Applied by brush, roller, or spray
  • 100% solids
  • 150% elongation
  • Abrasion and wear tolerance
  • Excellent chemical resistance
  • Terrific impact and vibration tolerances

Kit Offerings

6 Kilo Unit (1 x 6kg, B)
1 x 4.5kg, MCOR 4282 Part-A, Blue
1 x 1.5kg, MCOR 4282 Part-B

Color availability:

  • B (blue)

The volume capacity of a 1 kg of mixed mFlex MD Vertical Elastomer is 927 cm3.

mFlex HD Rubberizer is formulated to brush, roll, pour or cast in place, as an applied joint sealant. As a coating/liner, can be applied at 0.5mm (20mils) min. to 1.3mm (50mils) max./coat.

mFlex HD Rubberizer is a 100% solids polymer that will not shrink.  1.85 m2/kg. at 0.5mm DFT (19.6 ft2/kg at 20 mils DFT). Actual coverage will depend on surface conditions and irregularities.


Rubber liner, repair and sealant

MCOR 4282 | mFlex HD Rubberizer will:

  • Form a flexible coating/liner, encapsulant, rubberizer
  • Absorb vibration and impact
  • Offer simple “cold” applied methods of rubberizing

MCOR 4282 | mFlex HD Rubberizer is:

mFlex HD Rubberizer is an advanced urethane-acrylate epoxy hybrid, once cured, the material is categorized as a high strength hybrid elastomer. Take advantage of applied rubberized coating, lining, and padding with simple application methods as opposed to vulcanized rubber systems. mFlex™ HD Rubberizer through an advanced crosslinking system similar to (cold) vulcanizing; a chemical process for  converting polymers into more durable materials by the addition of elements, curatives, and other proprietary ingredients produces high strengths. Formulated for sealing and resisting industrial attack of chemicals, corrosives, abrasion and wear. These additives modify the polymer by forming cross-links (bridges) between individual polymer chains. The material is also designed to tolerate weathering elements, UV, and other degradation or constants.

mFlex HD Rubberizer is formulated to solve many industrial needs. It’s a prime candidate for high build rubber coating/lining requirements or padding needs. The material is often sought for encapsulation, vibration and shock absorption, anti-cavitation barrier protection, rubber-formed foundation grouting needs, casting/forming, and other industrial requirements requiring flexibility or rubberizing.