Condutive-OA roller | Square Silicone Official Site

SQUARE® LSR 6968 series

It is two parts and platinum curable liquid silicone rubber for injection molding processes.

Key Feature:

High rebound, low volatility, high temperature resistance

Basic Model:

LSR6968-15A/B LSR6968-20A/B LSR6968-30A/B LSR6968-40A/B LSR6968-50A/B

Properties:

Typical Properties

Properties	Test method	Unit	LSR6968-15A/B	LSR6968-20A/B	LSR6968-30A/B	LSR6968-40A/B	LSR6968-50A/B	LSR6968-31A/B
Appearance			Black	Black	Black	Black	Black	Black
Specific gravity	D792		1.000±0.001
Shore A hardness	D2204/DIN5305	A/Asker C	3/15	5/20	10/30	20/40	30/50		14/35
Viscosity	DIN53019	mPa.s	(5～10)×10⁴	(5～10)×10⁴	(5～10)×10⁴	(10～15)×10⁴	(10～15)×10⁴		(6～7.8)×104
Tensile strength	D412	MPa	≥0.6	≥0.6	≥0.8	≥1.0	≥1.0		1.0～1.5
Elongation at break	D412	%	≥400	≥400	≥350	≥350	≥350		280～360
Tear strength	D624B	kN/m	≥2	≥2	≥2	≥2	≥2		2.3～4.3
Linear shrinkage	JISK 6301	%	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5		≤2.5
Tensile set	D412 DIE C	%	≤2	≤2	≤2	≤2	≤2		≤2
Rebound		%	≥20	≥25	≥40	≥50	≥60
Compression set	DIN53 517 22hrs @ 175℃	%	≤8% (200℃x4h 180℃x22h, compress25%)
Curing time （150℃）			Tc10≥8S Tc90≤50S

Applications

The product is mainly used in printer and duplicating machine roller surface material.

Packaging

SQUARE® LSR6968 series are available in 20 kgs pail or 205 kgs drum.

Documents:

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