Silicone resins · Methyl and methyl phenyl resins for heat-resistant coatings, MQ resins for adhesives, release and cosmetics, delivery form (solution, emulsion, powder), cure conditions, temperature limits and solids content
A silicone resin is a cross-linkable polysiloxane resin chosen where heat, weather or water resistance matters; methyl and methyl phenyl resins are used as binders in heat-resistant and protective coatings, while MQ resins are used as tackifiers in silicone adhesives, release agents, film formers and in cosmetics. Ask three things first: which resin type and delivery form the formulation needs, what cure conditions and service temperature it must meet, and what solids, viscosity and compatibility data the supplier will guarantee.
Silicone resins and resin intermediates for coatings, adhesives, release agents, electrical insulation and personal care: methyl, methyl phenyl, modified and MQ resins as solutions, emulsions and powders. Silicone fluids, rubbers and elastomers, silanes and silicone sealants are outside this page except where compared.
01
Silibase describes MQ silicone resin as built from tetrafunctional (Q) and monofunctional (M) siloxane units with a molar mass of 1,000–8,000, whose M:Q ratio sets its properties and uses: high-temperature coatings and insulation, waterproof coatings, tackifier, release agents, pressure-sensitive adhesive peel regulation, reinforcement of silicone rubber and defoamers. It states that methyl MQ resin can be used from −60 to 300 °C and lists methyl, methylvinyl and hydrogen-containing MQ resins and dispersions, as well as methyl and methyl phenyl silicone resins. [2]
Ruihe lists silicone resins as fluids (dispersed in silicone oil), powders and emulsions for cosmetic and personal care formulas, and advises a small trial batch to confirm compatibility and film performance. [3]
Editorial note: for coatings, specify the resin's organic groups (methyl, phenyl), reactivity and solvent system; for adhesives and personal care, specify the MQ type, M:Q ratio range and dispersion medium.
Give the supplier the application (heat-resistant coating, adhesive, release, insulation, cosmetic), resin type and organic groups, delivery form (solution, emulsion, powder, dispersion) and solvent, solids and viscosity, cure conditions, service temperature, compatibility with your binders and pigments, regulatory needs (food contact, cosmetic), packaging and shelf life.
02
Evonik's datasheet for SILIKOPHEN P 40/W describes a non-reactive methyl phenyl silicone resin emulsion with about 50% non-volatile content, about 38% water and a xylene/isobutanol solvent fraction, for heat-stable coatings on industrial facilities such as ovens, furnaces, pipelines and incinerators. It gives curing at 250 °C for 30 min, continuous heat resistance up to 650 °C when used with metallic pigments and special formulations, degreasing and shot blasting as pre-treatment, and at least 12 months' shelf life between 4 and 40 °C, noting that contact with tin shortens storage stability. [1]
Editorial calculation: at about 50% non-volatile content, 100 kg of the emulsion carries about 50 kg of resin solids, so compare resins on solids basis, not as delivered. The 650 °C figure applies to formulated coatings with metallic pigments, while Silibase's MQ resin is stated for −60 to 300 °C; ask for the service temperature of the resin in your formulation. [1] [2]
03
Shin-Etsu Silicone's resin page states that silicone resins can withstand temperatures up to 250 °C, resist UV, form hard films through their three-dimensional network, give water-repellent films (especially methyl-containing grades) and keep good dielectric properties across a wide temperature range. It then lists grades by application: KR-220L, a white flake with heat resistance and flame retardance and very little smoking on heating, and its powder form KR-220LP, as heat-resistant and flame-retardant binders; KR-251 (thin hard coating), KR-255 (glossy hard coating) and KR-114B (wax-like soft coating removable with solvents) for moisture-proof and insulating coatings; KR-282, KR-300, KR-311, ES-1023, KR-5206 and KR-5235 for heat-resistant paints; and KR-480, a white flake with high phenyl content and compatibility, for modifying organic resins. [4]
Set these grades beside the emulsion data and MQ resin description above: the 250 °C figure is the maker's general statement for its resins, so ask for the service temperature of the specific grade and cure. [1] [2] [3]
Editorial calculation: the page lists 12 grades across four application groups; three of them are sold as flakes or powder (KR-220L, KR-220LP, KR-480) rather than solutions.
| Application (Shin-Etsu) | Grades listed | Stated feature |
|---|---|---|
| Heat-resistant, flame-retardant binder | KR-220L; KR-220LP (powder) | Very little smoking on heating |
| Moisture-proof / insulating coating | KR-251; KR-255; KR-114B | Thin hard; glossy hard; soft, solvent-removable |
| Heat-resistant paint | KR-282; KR-300; KR-311 | Flexibility; high hardness; organic-resin compatibility |
| Heat-resistant paint | ES-1023; KR-5206; KR-5235 | Anti-corrosion; flexibility and adhesion; release |
| Resin modification | KR-480 | High phenyl content |
Name the application (binder, insulating coat, heat-resistant paint or resin modifier) and the temperature, and ask the supplier for the grade's solids, cure schedule and maximum service temperature.
04
Suppliers linked to this page list silicone resins; each card links to the page reviewed.
The suppliers reviewed list methyl, methyl phenyl and MQ silicone resins in various forms with other silicone products; ask each for datasheets with solids, viscosity, cure, temperature resistance, safety data sheets and regulatory statements.
05
This is a functional reference built from the sources cited; it is not one maker's design.
| Characteristic | Role | Fix in the order |
|---|---|---|
| Siloxane units (M, Q) | Set structure and properties. [2] | Type; M:Q ratio. |
| Organic groups | Methyl, phenyl, vinyl. [2] [1] | Groups. |
| Delivery form | Solution, emulsion, powder. [1] [3] | Form; solvent. |
| Solids content | Active resin per kg. [1] | Value; tolerance. |
| Cure | Film formation. [1] | Temperature; time. |
| Storage | Shelf life and handling. [1] | Life; conditions. |
06
A silicone resin quotation needs values for your formulation. The table explains each field, gives published values where a reviewed source states them, and says what to obtain from the supplier.
| Field | What it means and published values | Ask the supplier for |
|---|---|---|
| Viscosity (cP) | Handling and application. | Value; method. |
| Cure Temperature (°C) | E.g. 250 °C / 30 min. [1] | Schedule. |
| Thermal Stability (°C) | E.g. −60 to 300 °C (MQ); to 650 °C formulated. [2] [1] | In your system. |
| Dielectric Strength (kV/mm) | Insulation use. [2] | Test value. |
| Hardness (Shore A) | Cured film or elastomer. | Value. |
| Solid Content (%) | E.g. about 50%. [1] | Value. |
| Density (g/cm³) | Formulation. | Value. |
| Water Absorption (%) | Water repellency. [2] | Value. |
| Tensile Strength (MPa) | Reinforced rubber use. [2] | Value. |
| Elongation at Break (%) | Film flexibility. | Value. |
| Volume Resistivity (Ω·cm) | Insulation. | Value. |
| Flammability Rating | Safety. | Rating; SDS. |
| Shelf Life (months) | E.g. 12 months at 4–40 °C. [1] | Life; storage. |
| Heat resistance | Silicone resins able to withstand up to 250 °C (Shin-Etsu general statement). [4] | Grade-specific service temperature. |
07
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
Application: [coating; adhesive; release; cosmetic] Resin: [methyl; methyl phenyl; MQ type] Form: [solution; emulsion; powder] Processing: [cure; drying] Service: [temperature range] Data: [solids; viscosity; SDS] Regulatory: [food contact; cosmetic] Packaging: [drum; IBC; shelf life]
These companies list silicone resins.
Lists methyl, methyl phenyl, modified and MQ silicone resins with silicone additives.
Product scope checked 2026-10-11
Lists MQ silicone resin with silicone gums, oils and emulsions.
Product scope checked 2026-10-11
Lists silicone resin fluids, powders and emulsions with silicone rubbers and oils.
Product scope checked 2026-10-11
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
A resin built from tetrafunctional (Q) and monofunctional (M) siloxane units; Silibase gives a molar mass of 1,000–8,000 and uses as tackifier, release agent and film former. [2]
Evonik states continuous heat resistance up to 650 °C for its methyl phenyl resin when formulated with metallic pigments. [1]
Evonik lists 250 °C for 30 minutes for SILIKOPHEN P 40/W. [1]
Shin-Etsu states that its silicone resins can withstand temperatures up to 250 °C and lists grades such as KR-300 and KR-311 for heat-resistant paints. [4]
Sources checked 2026-10-12. Evonik's datasheet describes its own resin; Silibase and Ruihe describe their own products. No open standard covering silicone resins as a class was found.
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