Liquid Silicone Rubber (LSR) for Silicone Plugs Manufacturer

Liquid Silicone Rubber (LSR) for Silicone Plugs

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Basic Model:
LIM1520-50A/B

Product Description
LIM1520-50A/B is a two-part liquid insulated silicone rubber for injection molding processes. This silicone rubber is particular developed for the manufacturing of silicone plugs. All LSR are platinum cured materials which are mixed in a 1:1 ratio by weight.

Main Application
The elastomeric material is perfect for making silicone plugs

Usage
Two parts of the liquid silicone rubber (A and B) are respectively stored in 20kg or 200kg barrels. Before being pumped into the molding chamber, they are precisely weighed by special weighing equipment and uniformly mixed in a static mixer by a ratio of 1:1. After mixed, A/B mixture can be stored for 7 days under 23℃. If the molding machine will stop for a long time, the pumping pipe should be cleaned.

Packaging
20kg/barrel or 200kg/barrel

Typical Properties of the Liquid Silicone Rubber

Before curing	Physical properties	Test method	Unit	LIM1520-50A/B
	Appearance (Color)			A: Transparent; B: Red
	Solid content		%	100
	Viscosity	DIN53019	mPa.s	(80-90) x 10⁴
After curing	SHORE Hardness	D2204	A	51 ~ 53
	Tensile strength	D412	MPa	≥8
	Elongation at Break	D412	%	≥500
	Tear strength	D624B	KN/m	＞ 28
	Volume resistivity	IEC60093	Ω.cm	1.0 x 10¹⁵
	Resilience	IEC60250	%	≥ 60
	Linear shrinkage	JISK 6301	%	≤2.2
	Tension set	D412 DIE C	%	≤ 4.5

Notes:
Storage: Store the electrically conductive rubber in an indoor dry and ventilated place at room temperature, and avoid direct sun exposure. It can be stored for 12 month
Viscosity is measured using NDJ-79 rotary viscosimeter
Molding condition: High pressure curing for 10 minutes at 140℃
Post curing condition: Curing for 2 hours at 200℃
Above parameters are only used for reference. They can not be used as a standard. For specific process conditions, you can refer to our product specifications or contact our engineering department.