Shin-Etsu Silicone Selection Guide

Methyl/Phenyl Type

Methyl/Phenyl silicone resin is a silicone resin whose organic substituents consist of methyl and phenyl groups. It has excellent heat resistance and forms a film with mechanical strength and gloss.

A silicone resin in which the organic substituents consist of methyl and phenyl groups. In addition to the basic properties of silicone resins, such as heat resistance and electrical insulation, they also offer higher heat resistance, crack resistance, and excellent adhesion, as well as good compatibility with organic resins.

  Structural Features Performance Features
Methyl type Methyl group High hardness, water repellency, mold release
Methyl/Phenyl Type Methyl and phenyl groups High heat resistance, compatibility, crack resistance, adhesion
Epoxy Resin Modified Type Hybrid with epoxy resin Anti-corrosion, water resistance, adhesion
Polyester Resin Modified Type Hybrid with polyester resin Chemical resistance, bending resistance
Alkyd Resin Modified Type Hybrid with alkyd resin Gloss, pigment suitability, room temperature curing

Positioning of each Product

Characteristic comparison and positioning of methyl-based and methyl/phenyl-based products

Characteristic Comparison of Methyl and Methyl/Phenyl Products

Comparison of properties of methyl and methyl/phenyl products. Methyl- and Methyl/Phenyl-based Products

Comparison of properties and positioning of methyl and methyl/phenyl products 2

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  • Required Performance

X-48-1030

X-48-1030

  • TX (toluene, xylene)-free type; uses PGMAC solvent
  • Excellent heat resistance
  • High hardness
  • Proven mainly as a binder for heat-resistant paints

X-40-2756

X-40-2756

  • Addition cure type
  • One-component product containing curing catalyst
  • Low curing shrinkage enables molded products and thick films
  • Good adhesion to glass substrates

KR-211

KR-211

  • Modifier of organic resins
  • Adding heat resistance and weather resistance are possible.
  • This product has been mainly used as paint applications.

KR-212

KR-212

  • Modifier for organic resins
  • More compatibility and flexibility than KR-211
  • Adding heat resistance and weather resistance
  • This product has been mainly used as paint applications.

KR-255

KR-255

  • Even at room temperature, when the solvent volatilizes, a lacquer film is formed.
  • Heating further forms a film with excellent heat resistance and chemical resistance
  • This product has been mainly used as coatings with electrical insulation and water resistance.

KR-271

KR-271

  • This product forms cured film with excellent heat resistance and electrical insulation.
  • Flexibility and less cracking and peeling at high temperatures
  • This product has been mainly used as a binder for coatings and paints.

KR-282

KR-282

  • This product forms cured film with excellent heat resistance.
  • Minimal cracking and peeling at high temperatures, good balance of performance
  • This product has been mainly used as a binder for heat-resistant paints.

KR-300

KR-300

  • This product forms cured film with excellent heat resistance.
  • High hardness
  • This product has been mainly used as a binder for heat-resistant paints.

KR-311

KR-311

  • Standard product of methyl/phenyl type
  • This product forms cured films with excellent heat resistance.
  • Good compatibility with organic resins
  • This product has been mainly used as a binder for heat-resistant paints.

X-40-2667A

X-40-2667A

  • Addition cure type
  • Two-component type consisting of a main agent (X-40-2667A) and a curing agent (X-40-2667B)
  • Low curing shrinkage enables molded products and thick films
  • Good adhesion to glass substrates

KR-480

KR-480

  • This product is developed as a flame-retardant agent for polycarbonate.
  • This product has many phenyl groups and good compatibility with organic resins
  • This product has almost no Si-OH groups and is thermoplasticity.
  • This product has been used as a stress-release agent for epoxy molding.