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Rulon Bearings

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Polytek Poly GlassRub 50 Clear Polyurethane Rubber
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)

Material Notes: Description: Poly GlassRub 50 Liquid Rubber consists of two parts (A and B) that, after mixing, cure at room temperature to a fl exible, clear rubber. The transparency of Poly GlassRub 50 allows the mold maker to see if air bubbles are trapped against the master or forming in the casting. Additionally, clear rubber castings or objects encapsulated in clear rubber make interesting displays or original art. Cured GlassRub may yellow slightly over time or following UV exposure. PolyColor dyes can be added to the liquid rubber to make a tinted or colored, yet still clear, rubber.

Product Line Features:

  • Glass-like appearance (pale blue clear)
  • Reproduces fine detail
  • Easy-to-use formulation -- 1A:1B mix ratio
  • Low-viscosity mix with excellent bubble-release
  • Long working time

Information provided by Polytek

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.00 g/cc
Viscosity 1200 cPMixed
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 50
Tensile Strength 360 psi
Elongation at Break 750 %
Tear Strength 74.0 pliDie C Tear
 
Processing PropertiesOriginal ValueComments
Cure Time 16.0 hourDemold Time
 30.0 minPour Time
 
Descriptive Properties
Cured ColorGlass-Like/Blue-Clear
Mix Ratio By Weight1A:1B
Specific Volume27.5 in3/lb

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PPTK5063 / 251055

Master Bond adhesives

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