Hapco Ultraclear™ 480N-20 Two Component Polyurethane

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Hapco Ultraclear™ 480N-20 Two Component Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Ultraclear™ is new series of diamond clear casting resins that are UV resistant, have high physical properties, and are available in multiple gel times. Ultraclear™ can be used in a wide variety of applications that require exceptional clarity; e.g., encapsulation, optical components, test models, and display pieces. The range of gel times makes Ultraclear™ suitable for small, average sized or larger castings. KEY ADVANTAGES: Diamond Clear UV Resistant Mercury Free 1:1 Mix Ratio Low Viscosity High Impact Resistance Information provided by Hapco, Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.08 g/cc	ASTM D-4669
Viscosity	600 cP	ASTM D-4878
Linear Mold Shrinkage	0.0020 - 0.0060 in/in	ASTM D-2566

Mechanical Properties	Original Value	Comments
Hardness, Shore D	80	ASTM D-2240
Tensile Strength	7700 psi	ASTM D-638
Elongation at Break	13 %	ASTM D-638
Modulus of Elasticity	338 ksi	ASTM D-638
Flexural Strength	11400 psi	ASTM D-790
Flexural Modulus	318 ksi	ASTM D-790
Izod Impact, Notched	1.10 ft-lb/in	ASTM D-256
Izod Impact, Unnotched	>= 17.1 ft-lb/in	ASTM D-256

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	76.0 °C	ASTM D-648
Deflection Temperature at 1.8 MPa (264 psi)	70.0 °C	ASTM D-648

Optical Properties	Original Value	Comments
Refractive Index	1.585	ASTM D-542

Processing Properties	Original Value	Comments
Cure Time	5.00 - 8.00 hour @Thickness 3.17 mm	Demold
	1.00 - 2.00 hour @Thickness 3.17 mm, Temperature 26.7 °C	Demold
Gel Time	20.0 min @Load 0.100 kg	ASTM D-2971

Descriptive Properties
Color (cured)	Water Clear
Mix Ratio	100:100	Volume
	100:100	Weight

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PHAPCO175 / 317234

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