Si25

Si25 Applications Functional components for assemblies and mock ups Master Patterns for RTV/Silicone Mouldings Automotive styling parts/Consumer Electronic components/ Toys Snap fit assemblies Replace CNC Machining of polypropylene for short run plastic parts Simulate injection moulded parts Concept & Marketing Models
Physical Properties
Colour	White
Type	Simulates PP Flexible, good for snap fits.
*Mechanical Properties*
		Test/ISO
Hardness Shore A/D	80D
Flexural Strength	55-58 (MPa)	ATSM D790
Flexural Modulus	1,380 – 1,660 (MPa)	ATSM D790
Tensile Modulus	1,590 – 1,660 (MPa)	ATSM D638M
Tensile Strength	38 (MPa)	ATSM D638M
Impact Strength	19-24 J/m	ATSM D256A
Elongation Break (%)	13-20%	ATSM D638
*Thermal & Scientific Properties*
Glass Transition Temperature	60°C	DMA, E”
Heat Deflection Temp (°C)		ATSM D648-98C
@0.46 MPa	58 – 63 °C
@1.81 MPa	51-55°C
Co-efficient of Thermal Expansion		E831-93
TMA (T<Tg, 0-20°C)	107 x 10^-6m/m – °C
TMA (T<Tg, 90-150°C)	151 x 10^-6m/m – °C

Si25 Applications Functional components for assemblies and mock ups Master Patterns for RTV/Silicone Mouldings Automotive styling parts/Consumer Electronic components/ Toys Snap fit assemblies Replace CNC Machining of polypropylene for short run plastic parts Simulate injection moulded parts Concept & Marketing Models
Physical Properties
Colour	White
Type	Simulates PP Flexible, good for snap fits.
*Mechanical Properties*
Hardness Shore A/D	80D
Flexural Strength	55-58 (MPa)	Test/ISO: ATSM D790
Flexural Modulus	1,380 – 1,660 (MPa)	Test/ISO: ATSM D790
Tensile Modulus	1,590 – 1,660 (MPa)	Test/ISO: ATSM D638M
Tensile Strength	38 (MPa)	Test/ISO: ATSM D638M
Impact Strength	19-24 J/m	Test/ISO: ATSM D256A
Elongation Break (%)	13-20%	Test/ISO: ATSM D638
*Thermal & Scientific Properties*
Glass Transition Temperature	60°C	Test/ISO: DMA, E”
Heat Deflection Temp (°C) @0.46 MPa	58 – 63 °C	Test/ISO: ATSM D648-98C
Heat Deflection Temp (°C) @1.81 MPa	51-55°C	Test/ISO: ATSM D648-98C
Co-efficient of Thermal Expansion TMA (T<Tg, 0-20°C)	107 x 10^-6m/m – °C	Test/ISO: E831-93
Co-efficient of Thermal Expansion TMA (T<Tg, 90-150°C)	151 x 10^-6m/m – °C	Test/ISO: E831-93

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