Anabond RTV Silicone Gasket Maker

Product Details

Definition Silicones are synthetic polymer containing alternate silicone and oxygen atoms as its backbone. Silicones are made from silicon (a metal obtained from silica sand) and methyl chloride (an organic compound) in a process known as the "direct process". The Silicone sealant in the uncured state normally looks like a thick paste or cream. After curing the paste turns into an impressive rubber. Applications Silicone sealant are used as a form-in-place gaskets for engine & transmission applications, sealing of exterior joints, aquarium joints bonding, sealing of bath tubs, construction and glazing application, electrical potting & encapsulation, mould making, etc. Curing Mechanism RTV silicone systems use humidity or moisture in the air during curing and cannot be accelerated using heat (excessive heat in the curing process can be detrimental). Small amounts of by-product are also produced. The cure process will only take place if the material is open to the atmosphere and curing will be adversely affected if access to humidity is removed prior to the completion of the cure process. Provided product types One component RTV silicone sealant Two component RTV silicone sealant Packing, storing, shelf life and transport Available packing sizes vary from 25 g to 25 kg, packed in lacquered coated aluminium tubes, HDPE cartridges and epoxy coated MS drums. Store products at room temperature (20°C to 35°C). Shelf life can vary from 4 - 12 months. They are safe to transport by road, air and sea. FeaturesLimitations RTV silicone sealant Silicone sealants cannot be painted by water base paint Low thermal conductivity Although silicones are excellent at keeping bulk liquid water out, water vapor passes relatively easily through the cured silicone rubber Low chemical reactivity Dirt pickup Low toxicity Some odor, corrosion problems with acetoxy type curing system Thermal stability (constancy of properties over a wide temperature range of −50 to 250 °C) Poor tear resistance The ability to repel water and form watertight seals Swelled by non-polar solvents High degree of elongation Short tooling time because of skin formation Does not support microbiological growth Primer required with some substrates (concrete) Resistance to oxygen, ozone, and ultraviolet (UV) light. This property has led to widespread use of silicones in the construction industry (e.g. coatings, fire protection, glazing seals) and the automotive industry (external gaskets, external trim)   Electrical insulation properties. Because silicone can be formulated to be electrically insulative or conductive, it is suitable for a wide range of electrical applications   They have high gas permeability   Excellent movement capability     General grades Anabond 666, Anabond 669, Anabond 631, GP sealant, HTRTV Red, Gasket maker Red