They are used in areas that require heat resistance, such as the engine and muffler areas of automobiles and motorcycles, plants, incineration facilities, power generation equipment, frying pans, and cooking appliances.
Straight silicone resins are used for applications that require the highest heat resistance, such as 600°C. Organic resin-modified silicone resins are used for applications that require other properties such as corrosion resistance, chemical resistance, and room temperature curing in addition to heat resistance.
In addition to the binder component, we also have a lineup of products that modify other organic resins to provide heat resistance.

Introduction to Heat Resistance Data (Weight Loss Rate at High Temperature Heating)

General organic resins, such as epoxy cured products, decompose at high temperatures and completely decompose at around 600°C. However, silicone resins undergo condensation, methyl group pyrolysis, and phenyl group pyrolysis as the temperature rises, and finally become cured products consisting only of -Si-O-Si- bonds, and do not undergo further heating loss at high temperatures (700°C or higher).

Weight Loss Curve of Methyl/Phenyl Silicone Resin (in Air)

* Epoxy-amine cured products decompose with the generation of ammonia and aldehyde as the temperature rises, and completely decompose in the high temperature range (around 600°C), whereas silicone resin undergoes condensation, methyl group pyrolysis, and phenyl group pyrolysis as the temperature rises, and finally decomposes into -Si-O -Si- bonds, and is stable even at high temperatures (above 700℃).

Introduction to Applied Products

Silicone Resin

Mainly used as a binder component.

Methyl Type

Methyl type has the lowest heating loss and is resistant to decomposition and yellowing of the cured film, but the methyl/phenyl system is more effective in terms of peeling and crack resistance.

Methyl/Phenyl Type

These are used in the high heat resistant range of 400-600℃. There are many product lineup, but the high-hardness type is KR-300, and the medium-hardness, general-purpose type is KR-311, and the medium-hardness, general-purpose type is KR-282, which has a good balance of hardness and flexibility and can be used in a wide range of fields.
In addition to binders, other modifiers include KR-211, KR-212, but because they are solvent-based, recently solvent-free silicone oligomer KR-510 is mainly used these days.

Organic Resin Modified Type (Epoxy)

Used for undercoating, taking advantage of the anticorrosive properties of epoxy resins.
ES-1001N, ES-1023 for heat curing and industrial baking applications, and ES-1002T is used in combination with KP-390, a polyamine cross-linker, for room temperature curing and is used for on-site construction.

Organic Resin Modified Type (Polyester)

Polyester resin is mainly used for kitchen applications due to its bending resistance, chemical resistance, and gloss. KR-5230, KR-5234 are for general industrial use. KR-5235 is used for frying pans and pots because it contains mold release ingredients and has non-stick properties.

Organic Resin Modified Type (Alkyd)

The room temperature curability of alkyd resin is used for applications that require on-site installation.
KR-5206 is a representative product.

Silicone Oligomers

Due to its relatively low molecular weight, silicone oligomer is inferior to silicone resin in terms of crack resistance and other properties, so it has few applications as a binder. However, it is widely used as a modifier for other organic resins. In particular, because it is 100% silicone and contains no solvents, it is used as a modifier to improve the heat resistance of various resins.
A typical product is KR-510. The following is an example of polyester resin modification.

Polyester Resin Modification by Silicone Oligomer

What We are Focusing on

1. Low VOC (TX(Toluene, Xylane)-free, Solid Type, Water Based Type )

Weak Solventization

We are focusing on the development of TX (toluene, xylene)-free products and have a lineup of products that use PGMAC solvents.

• Methyl/phenyl type…X-48-1030
• Epoxy resin modified type…X-41-1610
• Polyester resin modified type…KR-5230

We also have other developed products. If you are interested, please contact us.

Solventless(High Solids)

We are developing a silicone resin with 100% silicone active ingredient without using solvents.

Aqueous Conversion(Straight)

We are still in the development stage, but if you are interested, please contact us.

Aqueous Conversion(Acrylic Modified)

We are still in the development stage, but if you are interested, please contact us.

2.Improvement of Curing and Drying Properties

In addition to the above-mentioned low VOC, we are developing products that will enable shorter curing times, lower curing temperatures, and tack-free at room temperature. If you are interested, please contact us.