HOT! Addition Cure Moulding Silicon Rubber for Casting Concrete Stones

Introduction of Addition Cure Moulding Silicon Rubber for Casting Concrete Stones

Addition cure moulding silicon rubber is a pourable 2-part addition cure silicone elastomer system.
After mixing parts ‘A’ and ‘B’ in the correct proportions, the system will cure at ambient temperatures within 24 hours, but the rate of cure can be accelerated by heat. The cured rubber exhibits excellent physical and electrical properties.

Key Features of Addition cure moulding silicon rubber for Casting Concrete Stones
Good abraision resistant properties
Good dimensional stability
Very low viscosity
Food Approvals

Datasheet of  Addition Cure Moulding Silicon Rubber for Casting Concrete Stones 

How to Use Addition cure moulding rubber

IMPORTANT:  Addition cure moulding rubber contains the platinum catalyst, great care should be taken when using automatic dispensing equipment.Please ensure that it is not contaminated by residual hydride containing rubber in the dispensing equipment, as curing will result.If in doubt, it’s advised to thoroughly purge the equipment with a suitable hydrocarbon solvent or silicone fluid.

Mix both the A and B parts gently to ensure homogeneity. Place the required amount of A and B parts by weight at the ration of 1 : 1 (A to B) in a clean plastic or metal container of approximately 3 times their volume, and mix until the colour of the mixture is uniform.Degas by intermittent evacuation, the larger volume of the mixing vessel helps prevent overflow during this operation. In case of automatic dispensing with static mixing head, the two components should be degassed before processing. Recommended vacuum conditions are 30-50 mbar intermittently over 5-10 minutes.Cast the mixture either by gravity or pressure injection.

Inhibition of Cure
Great care must be taken when handling and mixing all addition cured silicone elastomer systems, that all the mixing tools (vessels and spatulas) are clean and constructed in materials which do not interfere with the curing mechanism. The cure of the rubber can be inhibited by the presence of compounds of nitrogen, sulphur,phosphorus and arsenic; organotin catalysts and PVC stabilizers;epoxy resin catalysts and even contact with materials containing certain of these substances e.g. moulding clays, sulphur vulcanised rubbers, condensation cure silicone rubbers, onion and garlic.

Health and Safety -- Material Safety Data Sheets available on request.

Packages– 25kg/pail,200kg/pail

Storage and Shelf Life – Expected to be 12 months in original,unopened containers below 30°C.

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