Methyl MQ Silicone Resin
Methyl MQ Silicone Resin is a highly branched organosilicon polymer with excellent thermal stability, film-forming, water repellency, and durable release. Ideal for coatings, adhesives, cosmetics, rubber, and defoamer applications.
Product Overview
Methyl MQ Silicone Resin is a high-purity, three-dimensional organosilicon polymer composed of monofunctional M units [(CH₃)₃SiO₁/₂] and tetrafunctional Q units [SiO₄/₂]. This unique MQ structure forms a rigid, non-linear Si–O–Si network, providing outstanding performance in thermal stability, hydrophobicity, film formation, and release durability.
Engineered for multifunctional use, it is widely applied in high-temperature coatings, adhesives, silicone rubber reinforcement, mold release agents, waterproof cosmetics, and industrial defoamers.
Key Properties
Wide Thermal Stability: Operates efficiently in environments from -60°C to +300°C, suitable for extreme heat and cold resistance applications.
Excellent Film Formation: Forms hard yet flexible transparent films with excellent UV and oxidation resistance.
Strong Hydrophobicity: Delivers long-lasting water repellency and anti-weathering effects for both indoor and outdoor use.
Adhesion Promotion: Enhances adhesion between organic and inorganic materials, improving bonding strength and interface durability.
Long-Lasting Release Performance: Serves as a semi-permanent release agent, ideal for thermoplastics, rubbers, and PU molding systems.
Typical Specifications
| Parameter | Value |
|---|---|
| Appearance | White or light-yellow powder |
| Solid Content | ≥ 97% (powder), 50–60% (solution) |
| M:Q Ratio | 0.60 – 0.80 |
| Molecular Weight | ~2,000 – 8,000 g/mol |
| Volatile Content | ≤ 3% |
| Solubility | Soluble in xylene, toluene, PDMS fluids |
Recommended Applications
High-Temperature Silicone Coatings: Used in H-class motor insulation systems, high-heat paints, and protective films.
Alkali-Resistant Defoamers: Enhances the long-term antifoaming ability in high-pH or chemical-intensive systems.
Waterproof and Cosmetic Formulations: Ideal for lipsticks, foundations, and waterproof coatings due to its film-forming and hydrophobic nature.
Pressure-Sensitive Adhesives (PSAs): Modifies tack and peel properties for tapes, labels, and decals.
Release Agents for Molding: Widely used in PU, thermoplastics, epoxy, and silicone molding as a durable mold release additive.
Silicone Rubber Reinforcement: Acts as a reinforcing filler to improve transparency and mechanical strength in LSR and HTV silicones.
Optoelectronics & Encapsulation: Provides structure stability in LED encapsulants, optical silicones, and sealants.
Recommended Silico® Grades
| Product Name | Appear ance | M:Q Ratio | Key Properties | Typical Applications |
|---|---|---|---|---|
| SI-MQ803 | White powder | 0.66–0.68 | Excellent heat resistance, film-forming, flexible, UV stable | High-temp coatings, waterproofing, defoamers, PSAs, plastic mold release, silicone rubber reinforcement |
| SI-MQ104 | White powder | 0.6–0.9 | Deactivated hydroxyl, high purity, excellent durability | Outdoor coatings, adhesives, PSAs, defoamers, silicone rubber, release coatings |
| SI-VMQ104 | White powder | 0.6–0.9 | Contains vinyl groups for crosslinking, high flexibility | Additive for LSRs, PSAs, UV systems, molding agents, lipsticks |
| SI-MQ102N | White powder | 0.6–0.9 | Lower molecular weight, narrow distribution, easy dispersion | Defoamers, sealants, PSAs, mold release, silicone rubber reinforcement |
| SI-MQ102 (0.8) | White powder | 0.6–0.9 | Higher M:Q ratio, general-purpose | Similar to MQ102N |
| SI-MQ102 (0.68) | White powder | 0.68 | Balanced M:Q, stable, versatile | Coatings, mold release, adhesives, sealants |
| SI-MQ103 (0.95) | Light yellow solid | 0.95 | High M content, excellent adhesion and toughness | Reinforcing filler, plastic additive, waterproofing |
| SI-MQ103 | Light yellow liquid | 1.4:1 | Liquid form, ultra-high M content, easy incorporation | PSAs, coatings, UV formulations, optical systems |
| SI-MQ-SN | White powder | N/A | Universal grade, high purity, thermally stable | High-temp coatings, PSAs, defoamers, waterproof agents, mold release, rubber reinforcement |
Usage Guidelines
Dosage Range: 1% to 100%, depending on target formulation and performance requirements.
Processing Advice: Can be used as-is or pre-dissolved in solvents such as xylene or toluene for easier dispersion in liquid systems.
Packaging & Storage
Packaging:
Available in 50 kg and 200 kg plastic drums.Storage:
Store in a cool, dry environment below 25°C, sealed in its original unopened packaging. Shelf life is 24 months from the date of manufacture.Transportation:
This product is non-hazardous and can be handled as a regular chemical material.
Why Choose Our Methyl MQ Silicone Resin?
Controlled M/Q ratio and molecular weight for consistency
Excellent compatibility with silicone oil, resin, and rubber systems
Superior multifunctional performance across industrial and cosmetic sectors
Trusted by global formulators in adhesives, personal care, coatings, and electronics
Jessica G.
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