Shin-Etsu Silicone Selection Guide

Weather Resistance

耐候性

Silicones do not decompose easily under UV light, making them extremely weather-resistant compared to ordinary organic resins.

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  • Required Performance

X-40-9300

X-40-9300

  • Very high reactivity of alkoxy group and rapid curing
  • Alkali resistance
  • Water resistance

X-40-9301

X-40-9301

  • Alkali resistance
  • Water resistance

X-40-9309A

X-40-9309A

  • This product contains UV absorber to prevent UV degradation of base material.
  • This product cures at room temperature.
  • One-component type (contains curing catalyst)
  • This product forms high hardness coating film.

X-40-2761

X-40-2761

  • Acrylic equivalent 330g/mol
  • This product imparts flexural resistance to acrylic resins.
  • This product has excellent compatibility with acrylic resins and various photoinitiators.
  • This product is applicable to UV/EB curing systems.

X-40-2669

X-40-2669

X-40-2669

  • Relatively low molecular weight and excellent compatibility with epoxy resins
  • Good leveling and wettability with linear siloxane structure
  • Low viscosity and effective as a reactive diluent

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

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-48-1800

X-48-1800

  • This product can be used by simply cold-blend*.
  • Applicable organic resins are silicone-modified acrylic polymers/polyesters/alkyds/weak solvent acrylic resins/NAD.
  • This product improves weather resistance, heat resistance, anti-marking pen fouling properties, acid/alkali resistance, etc..
  • Recommended additive amount is 10~50 parts per 100 parts resin solid content.

* Cold blend: A method of blending by simply mixing without heating

X-48-1801

X-48-1801

  • It can be used in combination with isocyanate curing agents.
  • This product can be used by simply cold-blend*.
  • Recommended additive amount is 3% to 20% (NCO equivalent) of catalyst.
  • This product improves weather resistance and oil repellency.
  • Applicable polyols are silicone-modified acrylic/polyesters/alkyd polyols.

* Cold blend: A method of blending by simply mixing without heating

X-88-1007

X-88-1007

  • Good adhesion to hard-to-bond base materials such as SUS and acrylic
  • Good crack resistance and water repellency

X-88-1004

X-88-1004

  • Good adhesion to hard-to-bond base materials such as SUS and acrylic
  • High hardness and good scratch resistance

X-48-1600

X-48-1600

  • This product has high hardness and flexural resistance.
  • Since this product cures by de-ethanol reaction, it is environmentally friendly.

X-48-1500

X-48-1500

  • This product has high hardness and flexural resistance.
  • Rapid curing

KR-251

KR-251

  • Ultra high molecular weight
  • 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.

X-40-9312

X-40-9312

  • High hardness and crack resistance
  • Excellent resistance to yellowing and cracking after

KR-470

KR-470

KR-470

  • Relatively low molecular weight and excellent compatibility with epoxy resin
  • Low shrinkage during curing due to cyclic siloxane structure

KR-4000G

KR-4000G

  • One-component type
  • High gloss
  • Excellent water repellency and water sliding properties
  • Exhibits antifouling performance even when wiped off.

KR-400

KR-400

  • Standard product of one-component type (containing curing catalyst)
  • High hardness

KR-518

KR-518

  • Alkoxy groups are methoxy groups and ethoxy groups.
  • Mercapto equivalent 800g/mol

X-40-2327

X-40-2327

  • Fast curing

KR-401

KR-401

  • Excellent flexural resistance
  • High gloss

KR-213

KR-213

  • For resin modification
  • Can add flexibility and crack resistance

KR-517

KR-517

  • Alkoxy groups are methoxy groups and ethoxy groups.
  • Epoxy equivalent 830g/mol

X-24-9590

X-24-9590

  • Alkoxy groups are methoxy groups.
  • Epoxy equivalent 590g/mol

KR-516

KR-516

  • Alkoxy groups are methoxy groups.
  • The organic functional groups have methyl groups in addition to the epoxy groups.
  • Epoxy equivalent 280g / mol

X-48-5031

X-48-5031

  • UV curable, good curability under air
  • Contains UV absorbers for superior weather resistance
  • Low viscosity, excellent scratch resistance and low warpage
  • Compatible with coating methods that require low viscosity, such as spray coating

KR-519

KR-519

  • Alkoxy groups are methoxy groups.
  • Organic substituent has both methyl group as well as mercapto group
  • Mercapto equivalent 450g/mol

KR-513

KR-513

  • Alkoxy groups are methoxy groups.
  • Acrylic equivalent 210g/mol
  • Applicable to UV/EB curing system
  • Lower volatility than KBM-5103 (monomer type)

X-40-9296

X-40-9296

  • Reactive functional groups are methacrylic groups.
  • Methacryl equivalent 230g/mol
  • Applicable to UV/EB curing system

KR-511

KR-511

  • Reactive functional groups are Vinyl groups.
  • Vinyl equivalent 530g/mol
  • Flame retardant for Polycarbonate

X-40-2678

X-40-2678

  • Relatively low molecular weight and excellent compatibility with epoxy resin
  • Less shrinkage during curing due to cyclic siloxane structure
  • Good crack resistance due to di-functionality

KR-220L

KR-220L

  • Solid (100% silicone content) in flake form
  • This product has been used as resistor paints, binders for sintered metal powder, etc.
  • Less smoke generation

KR-5206

KR-5206

  • This product has the heat resistance of silicone resin and the room temperature curability of alkyd resin.

KR-220LP

KR-220LP

  • Solid (100% silicone content) and powdered
  • KR-220L further ground and powdered
  • Less smoke generation

KR-242A

KR-242A

  • This product forms high hardness film.
  • Less smoke generation when heated
  • This product has been mainly used as binders of inorganic materials (i.e. mica).

X-40-2406M

X-40-2406M

  • Excellent heat shock resistance
  • Heat resistance and releasability
  • This product has been mainly used as coating and paint applications.

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-510

KR-510

  • Standard product of methyl/phenyl type
  • Modifying heat resistance and weather resistance of organic resins
  • This product imparts flexibility and crack resistance to silicone oligomer based coating agents.

KR-5230

KR-5230

  • This product has the heat resistance of silicone resin and the chemical resistance, flex resistance, and high gloss of polyester resin.
  • This is a standard product of polyester resin modified series.

KR-5234

KR-5234

  • This product has the heat resistance of silicone resin and the chemical resistance, flex resistance, and high gloss of polyester resin.
  • Faster curing speed compared to KR-5230

KR-5235

KR-5235

  • This product has the heat resistance of silicone resin and the chemical resistance, bending resistance, and high gloss of polyester resin.
  • Owing to the non-stich property, this product has been used as heat resistant paints for kitchen area.

KC-89S

KC-89S

  • This product contains only T units.
  • This product forms high hardness cured film.
  • This product has been used as binder for coating agents.

KR-515

KR-515

  • Higher molecular weight than KC-89S
  • Contains only T units
  • This product has been used as binder for coating agents and modifier for organic resins.

KR-500

KR-500

  • Higher molecular weight than KR-515
  • Made up of T units only
  • Standard product in methyl type
  • This product has been used as binder for coating agents and modifier for organic resins.

X-40-9225

X-40-9225

  • Higher molecular weight than KR-500
  • Contains only T units
  • This product has been used as binder for coating agents and modifier for organic resins.

X-40-9246

X-40-9246

  • Good crack resistance
  • This product has been used as binder for coating agents and modifier for organic resins.

X-40-9250

X-40-9250

  • This product has flexibility owing to the introduction of D unit.
  • This product has excellent water repellency and water slip properties
  • This product has been used as a coating binder.

KR-400N

KR-400N

  • High hardness
  • KR-400N is made from KR-400 without curing catalysis.

KR-401N

KR-401N

  • This product forms flexible cured film.
  • High gloss
  • Not containing curing catalyst
    (KR-401 is containing curing catalyst)