BX-MQR-602 Series Methyl MQ silicone resin
MQ silicone resin is a polysiloxane compound. It features a compact double-layer spherical structure. This resin provides excellent heat resistance. It also offers good film-forming capability. It has strong adhesion properties. It demonstrates water repellency. It resists aging effectively. It shows UV radiation resistance. This resin acts as a tackifier. It is used in silicone pressure-sensitive adhesives. It applies to construction sealants. It enhances organic resin coatings. It bonds mobile phone buttons. It modifies epoxy adhesives.
Ⅰ. Product Details
| Model | 602 series methyl MQ silicone resin | ||
| Index | 602P | 602S | 602N |
| Appearance | White Powder | Colorless Transparent Liquid | Colorless transparent viscous liquid |
| Viscosity(25℃) | – | 15-30S (4# cup) | ＞10000 cp [1] |
| Solid content% | ＞99 | 65±2 | ＞99 |
| M/Q value | 0.6-0.9 [2] | 0.6-0.9 [2] | 0.6-0.9 [2] |
| Note: 1. [1] (Viscosity of 602N) and [2] (M/Q value of all models) can be customized according to customer requirements to match specific application scenarios; 2. Key concept explanation: The “M/Q value” of methyl MQ silicone resin refers to the molar ratio of monofunctional siloxane units (M units, chemical structure: -Si(CH₃)₃) to tetrafunctional siloxane units (Q units, chemical structure: -SiO₄/₂). This ratio directly determines the resin’s core performance—lower M/Q values (closer to 0.6) enhance hardness and heat resistance, while higher M/Q values (closer to 0.9) improve flexibility and compatibility with organic resins; 3. Product form differentiation: – 602P (white powder, solid content ＞99%): Suitable for high-temperature curing systems (e.g., heat-resistant coatings for metal substrates) where solvent-free formulations or high-concentration blending is required; – 602S (colorless transparent liquid, 15-30S viscosity, solid content 65±2%): Ideal for low-viscosity application scenarios (e.g., impregnation of electronic components, thin-film coatings) due to its good fluidity and ease of spraying/coating; – 602N (colorless transparent viscous liquid, ＞10000cp viscosity, solid content ＞99%): Designed for thick-film coatings (e.g., protective layers for high-wear surfaces) or adhesive formulations, where high solid content avoids film shrinkage and high viscosity prevents run-off on vertical substrates. | |||
Ⅱ. Packaging and Storage
Packed in 25kg cardboard drums or 200kg lined plastic iron drums. Room temperature sealed storage, solution for half a year, powder and silicone oil type for one year. If the storage time exceeds the expiration date indicated on the label, it does not mean that the product cannot continue to be used. But in this case, retesting is necessary.
Ⅲ. Instructions
1.Used as tackifier for silicone pressure-sensitive adhesive;
2.High temperature resistant coatings, used for insulation, bonding, sealing, etc. of Class H motors
3.Reinforcing additive in condensation silicone rubber, to enhance color, transparency and mechanical strength
4.Waterproof coatings in daily chemical industry, such as lipstick 5.It can be used as a raw material for making release agents;
6.Raw material for defoamer to improve defoaming and foam inhibition ability.