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SQUARE® LIM1939-20AH/BH

Category:	Silicone Rubber, LSR , Silicone Rubber, LSR
Manufacturer:	Shenzhen SQUARE Silicone Co., Ltd.
Trademark:	SQUARE®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	vSLgxS_SQUARELIM193920AHBH.pdf
PRICE:	Order Products email sales@su-jiao.com

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Liquid silicone rubber mateials for O-ring gasket

Product Description
LIM1939-XXA/B and LIM1919-XXA/B are 2-part liquid silicone rubber catalyzed by platinum with long usable life and excellent performance, suitable for injection molding processes.

Key Features

Outstanding oil or water - proof performance.

Outstanding weather resistance.

High tear strength.

Outstanding resistance to aging.

Low yellowing.

The safe operating period is 5 days under airproof condition and 20°C after mixing component A and B, the safe operating period will decrease with the increasing of the temperature.

Applications
O-ring gasket for industrial sealed parts

General Information
Features	Moisture resistance Good tear strength Good weather resistance Oil resistance
Uses	Washer Industrial application
Appearance	Clear/transparent
Processing Method	Liquid Injection Molding (LIM)

Physical	Nominal Value	Unit	Test Method
Molding Shrinkage - Flow	1.7	%	JIS K6301

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A)	28		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Set ¹	4	%	ASTM D412
Tensile Strength	10.3	MPa	ASTM D412
Tensile Elongation (Break)	930	%	ASTM D412
Tear Strength ²	20.0	kN/m	ASTM D624

Thermoset	Nominal Value	Unit	Test Method
Thermoset Components
Component a	Mixing ratio by weight: 1.0
Component B	Mixing ratio by weight: 1.0
Pot Life (20°C)	7200	min
Shelf Life	52	wk

Uncured Properties	Nominal Value	Unit	Test Method
Viscosity			DIN 53019
-- ³	1300	Pa·s	DIN 53019
-- ⁴	1300	Pa·s	DIN 53019

Cured Properties	Nominal Value	Unit	Test Method
Rebound Resilience	50	%

Note Message
1 .	C mould
2 .	B mould
3 .	Part A
4 .	Part B

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