Typical Formulations of Silicone Adhesives & Sealants

Alcohol-Release Silicone Adhesive

This adhesive features excellent storage stability and is a moisture-curing type. When exposed to humid air, it cures into an elastomer (silicone rubber) with outstanding adhesion. 

Hydrophobic fumed silica (treated with dimethyldichlorosilane): 5 parts. Polysiloxane is synthesized by reacting 100 parts silanol-terminated polydimethylsiloxane with 15 parts 3-aminopropyltrimethoxysilane under stirring at 100°C for 6 hours, followed by removal of methanol and monomers. The resulting amino methoxysilane-functional polydimethylsiloxane oil with a viscosity of 8 Pa·s is blended thoroughly with other raw materials per the formula to produce the adhesive.

Polydimethylsiloxane(PDMS) CAS 9016-00-6

Polydimethylsiloxane CAS 63148-62-9

Methyltrimethoxysilane CAS 1185-55-3

Dibutyltin Dilaurate CAS 77-58-7

Ketoxime-Release Silicone Sealant (JS 2000, TS 1527, JS 606)

This sealant has excellent storage stability and belongs to the room-temperature vulcanising (RTV) grade. Upon exposure to humid air, it cures into an elastic silicone rubber with superior bonding performance.

Methyltris(methylethylketoxime)silane CAS 22984-54-9

3-Glycidoxypropyltrimethoxysilane CAS 2530-83-8

3-Aminopropyltriethoxysilane CAS 919-30-2

Dibutyltin Dilaurate CAS 77-58-7

GPS-4-20 Adhesive Formulation

Component A

Component B

Tetraethyl orthosilicate CAS 78-10-4

Tetrabutyl titanate CAS 5593-70-4

3-Glycidoxypropyltrimethoxysilane CAS 2530-83-8

Silicone Pressure-Sensitive Adhesive Formulation

CAS 63148-60-7 Hydroxy-terminated polydimethylsiloxane

Benzoyl Peroxide CAS 94-36-0

KH-505 Silicone Resin Adhesive Formulation

Add all fillers into concentrated silanol methylphenyl silicone resin and stir uniformly; a toluene solvent may be added if needed. Coat with adhesive at room temperature, dry at 80–120°C to remove solvent, assemble substrates under pressure of 0.5 MPa, and cure at 270°C for 3 hours. Post-curing at 425°C can further enhance bonding strength.

Phenyl Methyl Silicone Oil CAS 63148-58-3

Titanium dioxide CAS 13463-67-7

Zinc oxide CAS 1314-13-2

505 Adhesive Formulation

Room-Temperature Curable Two-Component Silicone Resin Adhesive

Component A

Component B

Polydimethylsiloxane(PDMS) CAS 9016-00-6

Bisphenol A diglycidyl ether CAS 1675-54-3

Bisphenol A diglycidyl ether resin E-03 CAS 25085-99-8