Silicone Resins
Silicone resins (MQ, T-resin, methyl/phenyl silicone resins) are highly crosslinked organosilicon network polymers used as binders for high-temperature coatings, electrical insulation, pressure-sensitive adhesives, and electronic encapsulation.
Key Properties at a Glance
| Resin Type | MQ, T (methyl-T, phenyl-T), DT, MDT |
|---|---|
| Softening Point | 60 – 120 °C |
| Heat Resistance | Up to 350 °C (continuous) / 600 °C (intermittent) |
| Solid Content | 50 – 80% in toluene/xylene |
| M:Q / T:Q Ratio | 0.6 – 1.2 (MQ tackifier); ≥1.0 (PSA) |
Range shown is category-wide; refer to individual grade COA for precise specs.
Products & Grades/ 2
MQ Silicone Resin (Tackifier and PSA Resin)
MQ silicone resin is a network of M (mono-functional, R₃SiO₁/₂) and Q (quad-functional, SiO₄/₂) units. The M:Q ratio (typically 0.6-1.2) controls the resin's tack-providing properties for silicone pressure-sensitive adhesive (PSA), or its viscosity-building properties as a silicone-rubber tackifier and reinforcer.
Methyl-Phenyl Silicone Resin
Methyl-phenyl silicone resins combine methyl and phenyl side groups to balance heat resistance with flexibility. Used as binders for high-temperature paints, electrical insulating varnishes, and char-forming fire-protective coatings. Phenyl content typically 5-50 mol%.