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PMC®-121 - Easy To Use Urethane Rubber
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Technical
MSDS
The PMC®-121 Series urethane rubbers feature convenient one-to-one by volume mix ratios. PMC®-121/30 Dry and PMC®-121/30 Wet are exceptionally strong and abrasion resistant for soft urethane mold rubbers. These rubbers will meet the stringent demands of production casting of wax, plasters, concrete, resins and epoxies. Vibrant colors can be achieved by adding So-Strong® Color Tints, available from Smooth-On. The dry version does not exude an oil and can be used for casting waxes, Smooth-On liquid plastics, gypsum plasters and other materials. The wet version contains a built-in release agent to aid in demolding hard plasters and concrete. PMC®-121/50 is a "wet-only" mold rubber that is long lasting and durable when used in a variety of applications including reproduction of ornamental plaster, precast concrete and ceramic case molds.



Product Name: A:B Mix RatioDemold TimeElongation at BreakMixed ViscosityPot LifeShore A HardnessTear StrengthWeight: CU.IN./LBHow much
do I need?
PMC® -121-30 Wet or Dry1:1 by volume16 hours1000%1800 cps30 min.3055 pli27.7
PMC® -121-50 Wet Only1:1 by volume16 hours500%1400 cps30 min.5080 pli26.7


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