Silicones (Si) for Adhesives and Sealants

DISPERCOLL® S 5005 by Covestro is anionic colloidal solution of amorphous silicone dioxide. The proper viscosity for a particular application can be obtained through the addition of nano-zinc oxide to the adhesive formulation. Shows improved moisture resistance and a higher heat resistance. It is intended as a component for waterborne polychloroprene adhesives based on Dispercoll® C dispersions. The shelf life of DISPERCOLL® S 5005 is six months and recommended storage temperature is 10-25 °C.

DISPERCOLL® S 4020 by Covestro is an anionic colloidal solution of amorphous silicone dioxide. It is intended as a component for waterborne polychloroprene adhesives based on Dispercoll® C dispersions. The proper viscosity for a particular application can be obtained through the addition of nano-zinc oxide to the adhesive formulation. Shows improved moisture resistance and a higher heat resistance. The shelf life of DISPERCOLL® S 4020 is six months, and the recommended storage temperature is 10-25 °C.

DISPERCOLL® S 4510 by Covestro is anionic colloidal solution of amorphous silicone dioxide. Shows improved moisture resistance and a higher heat resistance. The proper viscosity for a particular application can be obtained through the addition of nano-zinc oxide to the adhesive formulation. It is intended as a component for waterborne polychloroprene adhesives based on Dispercoll® C dispersions. The shelf life of DISPERCOLL® S 4510 is six months and recommended storage temperature is 10-25 °C.

MasterSil 323AO-LO by Master Bond is a thermally conductive, electrically insulating, two-component silicone for high performance bonding, sealing and gap filling. It contains no solvents or diluents and has very low shrinkage upon curing. It exhibits high viscosity, high bond strength, flowability and has a forgiving 1:1 mix ratio by weight.

• It does not require exposure to air for complete cross-linking.
• It imparts almost no residual stress on substrates with different coefficients of expansion when it is thermally cycled.
• It bonds well to a wide variety of substrates such as glass, metals, ceramics, plastics and many rubbers, including silicones.
• It resists the most aggressive types of thermal cycling and shock.
• It is used in many optical, electronic and specialty OEM applications.
• It has a shelf life of 3 to 6 months at 75°F, in original unopened containers.
• MasterSil 323AO-LO is RoHS complaint and meets NASA low outgassing specifications.

MasterSil 170 Gel by Master Bond is a two component, low viscosity, addition curing silicone material for sealing, potting and encapsulation. It exhibits excellent optical clarity, extreme softness, very low shrinkage upon cure, low exotherm, very long pot life, and transmission properties. It contains no solvents and will not outgas while curing. It does not require exposure to air for complete cross-linking.

• It has a convenient ten to one mix ratio by weight and can cure in thicknesses beyond 1 inch.
• It withstands severe thermal cycling and resists vibration, shock, gamma radiation, ETO and various chemical sterilants.
• It offers high temperature- and water resistance and superb electrical insulation properties.
• Upon curing, this silicone gel is transparent and is capable of withstanding temperatures ranging from -67°F to +392°F.
• It is used in optical, electronic parts, wire bonds, optical fibers, various chips, LEDs and resistors.
• MasterSil 170 Gel is RoHS complaint.
• It has a shelf life of 6 months.

MasterSil 151TC by Master Bond is a room temperature curing, thermally conductive, two part silicone with ultra fine particle filler. It offers low exotherm, high flexibility, good flow and very low shrinkage upon cure. It withstands severe thermal cycling as well as vibration and shock.

• It has no by-products released during cure and does not require air for curing.
• It provides electrical insulation, high temperature- and low thermal resistance.
• It can be applied in very thin sections and is used for bonding and smaller gap filling.
• Suitable for electronic components, thermal management and optical applications.
• It is RoHS compliant and meets NASA Low Outgassing specifications.
• The shelf life of MasterSil 151TC is 6 months.

Silcolease® RE POLY 11362 by Elkem Silicones is 100% recycled, solvent-free silicone polymer designed for release liners, labels and tapes. It provides reliable non-stick and easy-release properties of self-adhesive materials. It is a sustainable product developed by patented depolymerization technology. It demonstrated the same processing capabilities as virgin ones, even when running at high processing speed. Silcolease® RE POLY 11362 has 70% lower carbon footprint compared to its non-recycled counterparts.

Silcolease® RE POLY 368 by Elkem Silicones is solvent-free, 100% recycled silicone polymer for release liners, labels and tapes. It is a sustainable product developed by patented depolymerization technology. It provides reliable non-stick and easy-release properties of self-adhesive materials. It demonstrated the same processing capabilities as virgin ones, even when running at high processing speed. Silcolease® RE POLY 368 has 70% lower carbon footprint compared to its non-recycled counterparts.

Polymer OH 5 by Evonik is hydroxy-terminated polydimetylsiloxane. It is used as base polymers in condensation-curing silicone elastomers. Polymer OH 5 is suitable for self leveling sealants.

MasterSil 153Med by Master Bond is a two-component silicone compound with a paste consistency for high performance bonding and sealing. It is 100% solids and contains no solvents. It has superb electrical insulation properties, exceptionally long working life and very low exotherm. It possesses self-priming feature and bonds well with cured silicone rubber.

• It is an addition cured system and does not require exposure to air for cross-linking.
• It readily cures at ambient temperatures or faster cure at elevated temperatures.
• It has the ability to withstand severe thermal cycling and resist vibration and shock.
• It provides very long pot life, low shrinkage upon cure, high flexibility, high temperature- and water resistance.
• It bonds well to a wide variety of substrates including most metals, many plastics, glass and ceramic.
• It exhibits high tensile lap shear strength and is used for medical device applications.
• It has a shelf life of 6 months.
• MasterSil 153Med is RoHS complaint, meets USP Class VI and ISO 10993-5 specification for Cytotoxicity.