Shin-Etsu Silicone : Silicone resins

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Silicone fluids
Silicone fluids Modified silicone fluids Greases and oil compounds Textile treatments Release agents Silicone release coatings Defoaming agents Foam stabilizers Pressure sensitive adhesives

Silicone resins
Silicone resins Paint additives

Powders
Silicone Powder

Silanes
Silanes Silane coupling agents

RTV rubbers
One-component RTV rubbers Two-component RTV rubbers (for electric and electronic applications) Two-component RTV rubbers (for moldmaking) Sealants (for construction) Construction coating agents

Rubbers
Rubber compounds LIMS (Liquid silicone rubber Injection Molding System) Heat-shrinkable silicone rubber tubing Heat-dissipating rubber products Electrically conductive rubber products

Silicone resins are composed of highly branched 3-dimensional polymers. They form coatings with outstanding heat resistance, weather resistance, electrical insulative properties, and water repellency. They generally dissolve in organic solvents, and are used in diverse applications to improve durability, safety, and reliability.

Features

	Heat resistance
	Siloxane bonds (Si-O-Si) form the backbone of the molecular structures of silicone resins. Siloxane bonds have high bonding energy and the temperature of thermal decomposition is high, so these resins have excellent heat resistance. There is typically no decomposition, degradation, or discoloration even in high-temperature conditions of 250°C or more.
	Electrical insulative properties
	Silicone resins exhibit excellent electrical properties over a wide temperature range. In particular, even at high temperatures there is little decline in electrical insulative properties, and good resistance to arcing.

	Weather resistance
	They exhibit outstanding weather resistance, with little degradation caused by UV rays or other elements. Coatings exhibit little yellowing, chalking, or loss of gloss, and they maintain stable coating properties over long periods.
	Water repellency
	Due to the orientation of the methyl groups in the molecules, the surface of the cured material has excellent water repellency.
	High hardness
	Silicone resins are highly branched 3-dimensional polymers, and the backbone structure of the cured material is similar to that of glass, so these materials can be used to modify surfaces to make them inorganic substances.

Products

Type / Applications	Grade	Features
Straight silicone resin	KR-220L	Solid type. Flame-resistant and low smoking.
	KR-240	Fast curing. Particularly good resistance to solvents.
	KR-242A	Heat-resistance. Flame-resistance.
	KR-271	Forms relatively flexible films.
	KR-282	Good balance between drying properties and film characteristics.
	KR-311	Forms relatively hard films. Good drying properties.
Silicone resin for modification	KR-216	Ideal for cooking with polyesters, alkyds, epoxies, etc.
	KC-89S	Methyl silicone which contains methoxy groups.
	KR-500	Methyl silicone which contains methoxy groups.
	KR-511	Imparts resistance to heat, weather, and chemicals.
	KR-213	Ideal for cooking with polyesters, alkyds, epoxies, etc.
	KR-510
	KR-9218
Silicone polyester resin	KR-5230	Flexibility.
Silicone polyester resin	KR-5235	Soil resistant. Releasaility.
Silicone alkyd resin	KR-5206	For room-temperature drying.
Silicone epoxy resin	ES-1001N	Typical silicone epoxy varnish.
	ES-1002T	Curing agent for eoxy can also be used.
	ES-1023	Low acid values.
Silicone acrylic resin	KR-9706	Little discoloration or loss of luster at high temperatures (up to 250°C).
Silicone coating agent	KR-400	High hardness. Non-solvent alcohol-release coating agent.
	KR-251	Forms the thinnest, hard, transparent films of all varnishes used for moisture-proofing of surfaces.
	KR-255	Typical varnish for moisture-proofing.
	KR-112	Forms soft, solvent-resistant films.
	KR-114A	Soft, waxy film whch absorbs strain. Film can be removed with a solvent.
	KR-285	Low foaming during curing, and suitable for impregnation of large equpment.
For sleeve and cloth processing	KR-2706	The most flexible of all varnishes for sleeves. Good heat resistance.
	KR-165	Typical varnish for sleeves. Self-extinguishing. Good transparency.
	KR-166	Self-extinguishing. Excellent film strength.
	KR-169	Self-extinguishing. Good flexibility and heat resistance.
	KR-2038	Non-solvent type. Self-extinguishing. Good heat resistance.
Adhesive applications	KR-101-10	Good balance between adhesie strength and cohesive force. Suitable for fireproof electrical wire.
Adhesive applications	KR-120	Good adhesion and heat resistance. Suitable for heat-resistant adhesive tape.
Bonding applications	KR-105	For bonding of plastic or metal to silicone rubber, or silicone rubber to silicone rubber

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