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LSR High Temperature Silicone Rubber Outstanding Electrical Heat Conduction Fittings

Categories High Temperature Silicone Rubber
Brand Name: RUI - HE
Model Number: 5350-40
Certification: RoHS, FDA, MSDS, SGS, REACH, PAHS, ISO9001:2015, etc.
Place of Origin: GuangZhou, China
MOQ: 20KG or 200KG
Price: Negotiation
Payment Terms: Western Union, L/C, T/T, Paypal
Supply Ability: 1000 tons per month
Delivery Time: 5 -15 days
Packaging Details: 20 kg pails or 200 kg drums
Shelf Life: 12 Months
Transportation: By air or By ship
Mix Ratio: 1 : 1
Condition: 100% tested and working
Brand name: RUI - HE
Material: Liquid silicone rubber
Color: white,blue,red,yellow,black
Application: Industrial,electric insulation etc.
Product name: silicone tube,High temperature food grade micro silicone tubing,Silicone rubber hose,silicone tubing
Temperature range: -60°C to 250°C
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LSR High Temperature Silicone Rubber Outstanding Electrical Heat Conduction Fittings

High Temp Silicone Mold Rubber LSR 5350 - 40® Outstanding Electrical Heat Conduction Fittings


Rui-He LSR 5350 - 40 ® is a kind of two-component liquid silicone rubber for injection molding processes, consisting of part A and part B. It can be used to produce diving supplies with high thermal stability and excellent resistance to acid and alkali. All LSR are platinum cured (vulcanized) materials which are mixed in a 1: 1 ratio by weight.

Key Features and Benefits

  • Excellent resistance to acid and alkali
  • High resistance to yellow
  • Rapid vulcanization
  • Good transparency
  • Good rebound property
  • High stability to ozone and ultraviolet light
  • Neutral odor and taste
  • High thermal stability
  • Easy pigmentable with the LSR Color Pastes

Typical Properties

Technical information page
STYLE NO.PropertiesUnitAB


Shore A HardnessA/JLS40±2
Tensile StrengthMPa≥3.0
Elongation at break%≥180
Tear StrengthKN/m≥7.0
Linear Shrinkage%≦0.1
Tensile set%≥0.8
Compression set(22 hrs at 175℃) %/

These figures are for reference only, please contact us for details.

The mixing ratio of components A: B = 1: 1.

Vulcanization: 150 °C / 5 min


Because of the outstanding properties, 5350-40 ® liquid silicone rubber is particularly suitable for water tubes, a slide pad, sealant rings, suction cups, and shower head.


Rui-He H5350-40® Liquid silicone rubber obtained the following test certificate: RoHS, FDA, REACH, PAHS, ISO9001:2016, etc.

Performance Testing

RUI-HE Silicone has an extensive quality control system that tests the quality of raw materials first. The material cannot be used unless they are tested and meet our quality control standards. If it does not pass our incoming quality control testing, the material is refused and trucked back to the manufacturer.

Second, during the producing process, our quality control group will test the new batch of compound silicone rubber by taking some samples (twice from solid silicone rubber or three times from liquid silicone rubber) from different steps in the process. After passing the test, this batch can be sealed to pack and deliver to the customers.

Packaging Method & Delivery date

Packaging DetailsThis kind of rubber is packed in 20kg/plastic barrels or 200KG/iron drum with an inside plastic bag.
Lead Time

1 – 1000 (Kilograms)

1001 – 10000 (Kilograms)

7 days

15 days

Store in a cool, dry place out of direct sunlight, use it within 12 months from the day of manufacture.


This product cannot be contacted with compounds containing N, P, S to avoid affecting the catalytic effect of platinum.

If you need to know the prices of our silicone rubbers, please contact us. We do not provide prices on the website because prices fluctuate for many reasons.

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