RAMPF RAKU® TOOL VA-1900 Polyurethane

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RAMPF RAKU® TOOL VA-1900 Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced
Material Notes:	90 shore A polyurethane elastomer Key Properties: Excellent physical properties after RT cure Free of mercury, MOCA or TDI Excellent green strength for quick demold times Applications: For hand-batch processing, vacuum assisted processing or meter mix dispensed Cure 1: 24 hours at 77°F + 1 hour at 150°F Cure 2: 7 days at 77°F Information provided by © RAMPF Tooling Solutions GmbH & Co. KG
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Physical Properties	Metric	English	Comments

Density	1.06 g/cc	0.0383 lb/in³	Hardener; ASTM D-792
	1.10 g/cc	0.0397 lb/in³	Cure 1; ASTM D-792
	1.10 g/cc	0.0397 lb/in³	Cure 2; ASTM D-792
	1.11 g/cc	0.0401 lb/in³	Resin; ASTM D-792
Viscosity	900 cP	900 cP	Resin; ASTM D-2393
	1100 cP	1100 cP	Hardener; ASTM D-2393
	1100 cP	1100 cP	Mix; ASTM D-2393
Linear Mold Shrinkage	0.0020 - 0.0050 cm/cm	0.0020 - 0.0050 in/in	Cure 1; ASTM D-2566
	0.0020 - 0.0050 cm/cm	0.0020 - 0.0050 in/in	Cure 2; ASTM D-2566
Storage Temperature	15.0 - 30.0 °C	59.0 - 86.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	85 - 95	85 - 95	Cure 1; ASTM D-2240
	85 - 95	85 - 95	Cure 2; ASTM D-2240
Tensile Strength	8.27 MPa	1200 psi	Cure 1; ASTM D-638
	8.62 MPa	1250 psi	Cure 2; ASTM D-638
Elongation at Break	65 %	65 %	Cure 2; ASTM D-638
	75 %	75 %	Cure 1; ASTM D-638
Tear Strength	22.8 kN/m	130 pli	Cure 2; ASTM D-624
	24.5 kN/m	140 pli	Cure 1; ASTM D-624

Processing Properties	Metric	English	Comments
Cure Time	30.0 - 60.0 min	0.500 - 1.00 hour	Mix, Demold time
Gel Time	4.00 - 6.00 min	4.00 - 6.00 min	Mix

Descriptive Properties
Aspect	Neutral Tan		Cure 1
	Neutral Tan		Cure 2
Mix Ratio	100:100		Resin: Hardener, Weight
	95:100		Resin: Hardener, Volume

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PRAMPF123 / 317723

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