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Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A

Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A

  • Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A
  • Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A
  • Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A
Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A
Product Details:
Place of Origin: CHINA
Brand Name: MC silicone
Certification: MSDS,SGS
Model Number: MCPLA-H40A/B
Payment & Shipping Terms:
Minimum Order Quantity: 200kg
Price: USD 8.58~8.98 KG
Packaging Details: 20kg;200KG/DRUM
Delivery Time: 3-5 working days after payment
Payment Terms: L/C, D/P, T/T, Western Union
Supply Ability: 4000KG PER DAY
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Detailed Product Description
Goods Description: Silicone Rubber HS Code: 39100000
Color: Transparent Clear Silicone Rubber Mix Ratio: 10:1
Working Time: 90~120 Minutes Curing Time: 24 Hours
Viscosity: 55000cps Hardness: 40 Shore A
Tensile Strength: 6.0Mpa Tear Strength: 27N/mm
Elongation: 350% Shrinkage: 0.1%
Shelf Life: 12 Months
High Light:

Addition Vulcanising Liquid Silicone Rubber

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Liquid Silicone Rubber 40 Shore A

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Addition Vulcanising 2 Component Silicone Rubber

Addition vulcanising 2-component liquid silicone rubber for producing elastic ear moulds


Product description

Two-component addition type silicone rubber Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a Shore A 10~55 rubber. The polymerization can be accelerated by heat. The silicone components are delivered as liquids,which once mixed and cured transform into a transparent, elastic and resistant material. Polymerization occurs without formation of heat.

 

Features

Outstanding release properties

Cure can be heat accelerated

High transparent appearance to cut split lines

Very low shrinkage and good dimensional stability

High hardness, but flexible and very tough

Can be used for high temperature casting applications

 

Applications

1. A range of materials can be casted into the cured silicone mold:

    polyurethane and other reactive resins;

    Small pieces of cement,plaster,concrete products;

    Food like chocolate,fondants;

    Wax,candle,soap;

    Low melt metal.

2. Label manufacturing, toys, jewelry, automotive, rapid prototyping etc.

 

Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A 0

 

 

 

Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A 1

 

Technical Properties

Properties MCPLA-H40 A MCPLA-H40B
Appearance Viscous liquid Liquid
Color Transparent Clear
Viscosity(at 23°C,mPa.s,approx.) 55000 4000
Specific Gravity(g/cm3,approx.) 1.08 1.08
Proportion(A:B) 100 10
Mixing viscosity(at 23°Capprox.) 55000
 working time(at 23°C,minutes) 90~120
Demoulding time(at 23°C,hrs,approx.) 24
Hardness Shore A(after 24 h) 6.0
Elongation(%) 350
Tear Strength(N/mm) 27


Processing and Instructions of Addition Cure Silicones

 

1. Mixing the two components

According the mixing ration 10:1 weighting A and B, the two components may be thoroughly mixed either by hand or using a low-speed electric to minimize the degassing of bubbles and to avoid any temperature increase.

Note: It is also possible to use a special mixing and dispensing machine for the silicone components, further information is available upon request.

 

2. Moulding

The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing. The silicone mixture expands to 3-4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.

 

Note: Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter/height ratio (3 to 4 times of the initial volume)

 

3. Polymerisation

The curing may be slowed down at lower temperature or accelerated by applying heat.

Note:

1. Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.

2. Apply a release agent, Although not usually necessary, a release agent will make demolding easier when casting into most surfaces.

 

 

Packaging
20kg per drum, 200kg per drum

Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A 2


Storage and shelf life

When the silicone rubber is stored at or below 25 degree Celsius in the original unopened containers, Silicone Base and Curing agent have a usable life of 12 months from the date of production. After 12 months’ stockpiles, please use tool to stir the Part A silicone for some minutes, then the silicone can be use again, no influence for other performance.

1. Store the original packing tightly sealed and at a temperature below 25 degree Celsius.Use the product as soon as the packaging has been opened.

2. Close the lid tightly after taking out the proper amount of liquid silicone rubber.

Use the product as soon as the packaging has been opened.

Addition Vulcanising 2 Component Liquid Silicone Rubber 40 Shore A 3

Contact Details
MINGCHENG GROUP LIMITED

Contact Person: Mrs. Amy Tse

Tel: +86-18664910896

Fax: 86-769-82696808

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