LIM™ 8040 Datasheet,Silicone Rubber, LSR,Momentive Performance Materials Inc.-SHANGHAI SUSHENG

LIM™ 8040

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LIM8040 liquid silicone rubber is a 2-component liquid injection moulding material, which offers primerless adhesion to a wide range of substrates including metals and engineering plastics. Full bond strength is reached immediately after de-moulding. This makes LIM 8040 the optimal choice for cost-efficient manufacturing of high numbers of articles in integrated processes such as multicomponent injection moulding or insert-moulding. If properly processed, parts made from LIM 8040 can meet the requirements for food contact. The requirements are determined in 21CFR FDA paragraph 177.2600 'Rubber articles intended for repeated use. It also has been successfully tested for USP class VI. Both applications usually require a postcure. Key Features and Benefits Primer-less adhesion to many substrates Maximum adhesion immediately after de-moulding High temperature stability Excellent stability and flexibility at low temperatures Outstanding ageing behavior and weathering resistance Good dielectric and mechanical properties Easy pigmentable due to translucent colour Potential Applications LIM 8040 is particularly suitable for the manufacturing of parts, where engineering plastics and elastomeric materials need to be combined in an overmolding or co-molding process such as: sealing elements, automotive connectors, membranes, vibration dampening elements

Message

LIM8040 liquid silicone rubber is a 2-component liquid injection moulding material, which offers primerless adhesion to a wide range of substrates including metals and engineering plastics. Full bond strength is reached immediately after de-moulding. This makes LIM 8040 the optimal choice for cost-efficient manufacturing of high numbers of articles in integrated processes such as multicomponent injection moulding or insert-moulding. If properly processed, parts made from LIM 8040 can meet the requirements for food contact. The requirements are determined in 21CFR FDA paragraph 177.2600 'Rubber articles intended for repeated use. It also has been successfully tested for USP class VI. Both applications usually require a postcure.

Key Features and Benefits

Primer-less adhesion to many substrates

Maximum adhesion immediately after de-moulding

High temperature stability

Excellent stability and flexibility at low temperatures

Outstanding ageing behavior and weathering resistance

Good dielectric and mechanical properties

Easy pigmentable due to translucent colour

Potential Applications
LIM 8040 is particularly suitable for the manufacturing of parts, where engineering plastics and elastomeric materials need to be combined in an overmolding or co-molding process such as:

sealing elements,

automotive connectors,

membranes,

vibration dampening elements

General Information
Features	Food Contact Acceptable Good Adhesion Good Colorability Good Thermal Stability Good Weather Resistance Low Temperature Flexibility
Uses	Automotive Applications Connectors Membranes Seals
Agency Ratings	FDA 21 CFR 177.2600 USP Class VI
Forms	Liquid
Processing Method	Liquid Injection Molding (LIM) Multi Injection Molding

Thermal	Nominal Value	Unit
Thermal Conductivity ¹	0.19	W/m/K

Uncured Properties	Nominal Value	Unit
Color
-- ²	Translucent
-- ³	Translucent
Density
-- ⁴	1.08	g/cm³
-- ⁵	1.08	g/cm³
Pot Life (20°C)	4300	min

Cured Properties	Nominal Value	Unit
Shore Hardness
Shore A ⁶	43
Shore A ⁷	46
Tensile Modulus
100% Secant ⁸	1.20	MPa
100% Secant ⁹	1.60	MPa
Tensile Strength
-- ¹⁰	5.20	MPa
-- ¹¹	5.60	MPa
Tensile Elongation at Break
-- ¹²	380	%
-- ¹³	390	%
Compression Set
150°C, 168 hr ¹⁴	27	%
150°C, 1000 hr ¹⁵	35	%
150°C, 168 hr ¹⁶	67	%
150°C, 1000 hr ¹⁷	76	%
Tear Strength
Die B ¹⁸	30.2	kN/m
Die B ¹⁹	37.8	kN/m
Electric Strength
-- ²⁰	20	kV/mm
-- ²¹	20	kV/mm
Relative Permittivity
-- ²²	2.85
-- ²³	2.85
Volume Resistivity
-- ²⁴	2.9E+14	ohms·cm
-- ²⁵	2.9E+14	ohms·cm
Dissipation Factor
-- ²⁶	3.0E-3
-- ²⁷	3.0E-3

Note Message
1 .	Postbaked 1 hr @ 177°C (350°F)
2 .	Part B
3 .	Part A
4 .	Part B
5 .	Part A
6 .	As Molded 30 sec @ 177°C (350°F)
7 .	Postbaked 1 hr @ 177°C (350°F)
8 .	As Molded 30 sec @ 177°C (350°F)
9 .	Postbaked 1 hr @ 177°C (350°F)
10 .	As Molded 30 sec @ 177°C (350°F)
11 .	Postbaked 1 hr @ 177°C (350°F)
12 .	Postbaked 1 hr @ 177°C (350°F)
13 .	As Molded 30 sec @ 177°C (350°F)
14 .	Postbaked 1 hr @ 177°C (350°F)
15 .	Postbaked 1 hr @ 177°C (350°F)
16 .	As Molded 30 sec @ 177°C (350°F)
17 .	As Molded 30 sec @ 177°C (350°F)
18 .	Postbaked 1 hr @ 177°C (350°F)
19 .	As Molded 30 sec @ 177°C (350°F)
20 .	Postbaked 1 hr @ 177°C (350°F)
21 .	As Molded 30 sec @ 177°C (350°F)
22 .	Postbaked 1 hr @ 177°C (350°F)
23 .	As Molded 30 sec @ 177°C (350°F)
24 .	Postbaked 1 hr @ 177°C (350°F)
25 .	As Molded 30 sec @ 177°C (350°F)
26 .	Postbaked 1 hr @ 177°C (350°F)
27 .	As Molded 30 sec @ 177°C (350°F)

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Resin Grade

Manufacturer

Category:	Silicone Rubber, LSR , Silicone Rubber, LSR
Manufacturer:	Momentive Performance Materials Inc.
Trademark:	LIM™
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	k4xGGL_LIM-8040.pdf
PRICE:	Order Products email sales@su-jiao.com