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Polytek Poly-Optic® 1412 Low Viscosity, Polyurethane Casting Resins
Categories: Polymer; Thermoplastic; Polyurethane, TP

Material Notes: Description: Poly-Optic® 14-Series Casting Resins are two-part, polyurethane systems formulated specifically for applications where optical clarity is required. Castings are clear like water; however, PolyColor dyes can be added to obtain clear, colored castings. Poly-Optic systems, with low viscosities and long pot-lives, provide for easy mixing, excellent detail penetration, and easy degassing, through vacuum or pressure casting techniques, for bubble-free castings.

Product Line Features:

  • Crystal clear
  • Reproduces fine detail
  • Can be machined, drilled and sanded
  • Tough and hard, but not brittle
  • Long working time
  • Low shrinkage upon cure

Information provided by Polytek

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.07 g/cc
Viscosity 750 cPInitial Mixed
Linear Mold Shrinkage 0.0019 in/in
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 80
Tensile Strength 9825 psi
Elongation at Break 11.1 %
Modulus of Elasticity 179.8 ksi
Flexural Strength 12261 psi
@Strain 5.0 %
Flexural Modulus 295101 psi
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 1.8 MPa (264 psi) 227 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 0.500 hour
@Temperature 79.4 °C
Demold Time
Pot Life 8.00 min
 
Descriptive Properties
Cured ColorWater Clear
Maximum Exotherm235°F
Mix Ratio By Weight1A:1B
Specific Volume25.8 in3/lb

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PPTK5079 / 251071

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