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Silopren® LSR 2740

Category:	Silicone Rubber, LSR , Silicone Rubber, LSR
Manufacturer:	Momentive Performance Materials Inc.
Trademark:	Silopren®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	0GGHg3_Silopren-LSR-2740.pdf
PRICE:	Order Products email sales@su-jiao.com

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Silopren LSR 2740 TP 3783 is a two-component liquid silicone rubber for injection molding, which offers primer-less adhesion to a wide range of substrates including metals and engineering plastics, but without adhesion to the mold. Full bond strength is generally reached after a short post cure (e.g. one hour at 100 degrees Celsius) or by longer storage at room temperature. This makes Silopren LSR 2740 liquid silicone rubber a good option to consider for cost-efficient manufacturing of high part-quantities in integrated processes, such as multi-component injection molding or insert-molding.

Key Features and Benefits

Primer-less adhesion to many substrates

No special mold treatment needed (final adhesion builds up with time)

High temperature stability

Excellent stability and flexibility at low temperatures

Favorable aging behavior and weathering resistance

Good dielectric and mechanical properties

Easy to pigment with LSR color-pastes

General Information
Features	Good Adhesion Good Colorability Good Stability Good Thermal Stability Good Weather Resistance Low Temperature Flexibility Vibration Damping
Uses	Membranes Seals
Agency Ratings	BfR Food Contact, Unspecified Rating FDA 21 CFR 177.2600 ISO 10993 USP Class VI
Forms	Liquid
Processing Method	Injection Molding

Physical	Nominal Value	Unit	Test Method
Density	1.12	g/cm³	DIN 53479

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A)	38		DIN 53505

Elastomers	Nominal Value	Unit	Test Method
Tensile Strength	9.30	MPa	DIN 53504
Tensile Elongation (Break)	700	%	DIN 53504
Tear Strength ¹	20.0	kN/m	ASTM D624
Compression Set			ISO 815
120°C, 22 hr	15	%
150°C, 22 hr	25	%

Thermoset	Nominal Value	Unit	Test Method
Thermoset Components
Part A	Mix Ratio by Weight: 1.0
Part B	Mix Ratio by Weight: 1.0

Additional Information	Nominal Value	Unit	Test Method
Vulcanization (175°C)	10.0	min

Uncured Properties	Nominal Value	Unit	Test Method
Color
-- ²	Translucent
-- ³	Translucent
Viscosity			DIN 53018
20°C ⁴	610	Pa·s
20°C ⁵	670	Pa·s
Pot Life (20°C)	4300	min

Note Message
1 .	Die B
2 .	Part B
3 .	Part A
4 .	Part A
5 .	Part B

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