Silicone Resins

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.

PRODUCT

Category	Type / Applications	Grade	Features
For paints	Straight silicone resin	KR-282	Good balance between drying properties and film characteristics.
	Straight silicone resin	KR-311	Forms relatively hard films. Good drying properties.
	Silicone resin for modification	KR-211	Best miscibility with other organic resin.
		KR-216	Forms the hardest films.
		KR-213	Ideal for cooking with polyesters, alkyds, epoxies, etc.
		KR-9218	Ideal for cooking with polyesters, alkyds, epoxies, etc.
	Silicone alkyd resin	KR-5206	For room-temperature drying.
	Silicone epoxy resin	ES-1001N	Typical silicone epoxy resin.
		ES-1002T	Curing agent for eoxy can also be used.
		ES-1023	Flexible with good adhesion and shelf-life.
	Silicone polyester resin	KR-5230	Flexibility. High gloss.
	Silicone polyester resin	KR-5235	Flexibility. High gloss.
	Silicone coating agent	KR-400	High hardness. Non-solvent coating agent.
	Silicone coating agent	KR-401	Medium hardness. Non-solvent coating agent.
For electricity	For surface damp-proofing	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-114A	Soft, waxy film whch absorbs strain. Film can be removed with a solvent.
		KR-112	Forms soft, solvent-resistant films.
	For laminates	KR-2610B	Heat resistant, and molded items will have good mechanical strength.
	For mica	KR-242A	Flame-resistant and low smoking.
	For coil immersion	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.
	For resistor coating	KR-221	Crack resistant.
		KR-240	Fast curing. Particularly good resistance to solvents.
		KR-220L	Solid type. Flame-resistant and low smoking.