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Poly Optic 1490 clear polyurethane casting resin

Poly-Optic 1490 is a crystal clear polyurethane casting resin product. This Poly Optic 1490 is a crystal clear polyurethane casting resin what as a two components RTV casting plastic cured to a hardness of D 80 and is this material is mercury free. The Poly Optic and Clear Cast products are used in applications where optical clarity is important

The Poly-Optic 1490 is an alternative to Poly Optic 1411 and 1412. This water-clear casting resin has a simple mixing ratio of 100A: 90 B by volume and 1A: 1B by weight. Fast processing of 9 minutes and curing of 1 hour ensures that it can also be used for production applications. The Poly Optic 1490 has a viscosity of 690 cP.

Packaging: Set 1,9 kg, Set 9,5 kg, Set 34,4+ kg on request.
Hardness (Shore D):  80
Mix Ratio: 100 A : 90 B (1 kg A : 1 kg B by volume)
Working Ttime (min.) : 9 min *
Demold (hr): 1 hrr*
Total cure time (hr): 24 hr / 7 days
Viscosity (cP): 690
Linear shrinkage: 0.007 %
Elongation: 7.7  (12.1 bij 6 uur op 70 °C in oven)
Heat Deflection Temperature (°C): 74 (97 bij 6 uur op 70 °C in oven)
Specific weight: 1.07
Tensile Strength, psi (MPa): 6,605 (45.6) / (8,744 (54.3) Post cured for 16 hours at 160°F (70°C))
Elastic modulus, psi (MPa): 96,260 (663.9) / (128,837 (74,3)Post cured for 16 hours at 160°F (70°C))
Buigsterkte, 5% spanning, psi (MPa):10,847 (74.8) 10,776 (74.3) Post cured for 16 hours at 160°F (70°C)
Flexural Strengths, psi (MPa): 324,248 psi(2236.2MPa Post cured for 16 hours at 160°F (70°C))
Type product: Polyurethane rubber / water clear
* Shrinkage is primarily caused by gelling while hot then cooling. Parts that cure with minimal temperature rise exhibit minimal shrinkage

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