RTV Silicones

MG Chemicals is the master distributor for Momentive RTV silicones. The range of products available include potting compounds, adhesives, coatings and primers. The products comprise of general-purpose room temperature vulcanizing silicone along with specialty grades. We also offer primers formulated for use with RTV silicone rubbers and silicone sealants for tricky surfaces.

Our RTV silicone adhesives cover a host of options to meet your needs. We have products that have high adhesion, flame retardancy, low outgassing, thermal conductivity and more. RTV silicone glue performs well because of its high heat resistance and wide temperature range. Silicone RTV glue is soft and stretchy, making it an ideal choice for delicate parts in harsh climates.

Our potting compounds offer great thermal protection over other potting types, up to temperatures of 200°C. Because silicone is soft and elastic, they are also ideal materials for potting delicate surface mount devices. Silicone finds wide use in industries such as automotive and aerospace. The soft, stretchy nature of silicone minimizes damage from thermal expansion and contraction when applied over materials.

We also carry 2 Silicone Conformal Coatings that cure quickly with a tack free time of just 5 minutes and full cure in 30. These coatings are 100% solids and contain pure silicone that cures from atmospheric moisture. They are flame retardant, UL certified and contain a UV dye for inspection. These coatings bond to many surfaces and do not require a primer.

With resistance to moisture and weathering, UV silicone products are suitable for outdoor lighting, signage and scoreboards. Unlike other options, silicone does not yellow or become brittle with UV exposure. Silicone maintains in extreme temperatures and seals out water, salts and harmful gas. Silicone is a great option to extend product life by protecting against corrosion.

We have many types of silicone available with variable hardness, curing times and thickness. Silicone is easy to use, offers great temperature resistance and often cures in 24 hours. The cured rubber has high electrical insulation, meaning they can apply over electrical connections. MG even offers food grade silicone, that is safe to use in food facilities.

Silicone is also a great choice as a gasket. Silicone adhesives and sealants are soft and can compress to form a tight seal in cavities. A silicone gasket ensures no water seeps in, keeping devices dry and functional. Silicone paste is a great choice to make a form-in-place gasket since it is thick and will not sag after dispense.

Liquid silicone rubber is also great for mold making to make samples or prototypes. A silicone mold does not shrink much as it cures and samples will not stick to the mold. This ensures the finished part is accurate and will not break during demold.

In harsh climates, silicone may not be the best material as it does not hold up well to chemicals like oil and other solvents. These liquids cause the rubber to swell and not adhere well to the shape of the substrate. Also, soft materials like silicone may not be best to protect components against hard impacts. Instead, consider hard materials like epoxy or polyurethane.