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SiSR-255A is a hydroxy-functional, low molecular weight methyl phenyl silicone resin intermediate. The hydroxy group imparts good reactivity with other organic resins like alkyds, phenolics, epoxies, acrylics, etc. The condensation reaction is:
=SiOH + HOC= → =Si-O-C= + H2O
The resins modified with SiSR-255A features excellent weather resistance and heat resistance compared with unmodified resins.
Product Data
| Item | Value |
| Appearance | Flake solid |
| Solid Content,% | More than 97 |
| Specific gravity, 25ºC | 1.00 |
| Softening point, ºC | 35-45 |
| Volatile, 150ºC, 2h,% | Less than 3 |
Notes: these data are for reference only and should not be used as preparation specifications.
Application
• Maintenance, coil coating and architectural finishes based on organic copolymers modified with SiSR-255A resin exhibit good chalk resistance and retain their color and gloss after years of outdoor exposure.
• High-temperature finishes prepared with silicone-organic copolymers and cold blends have excellent gloss and color retention and can be used on space heaters, ovens, incinerators and similar high temperature appliances.
• Silicone organic blends containing SiSR-255A may also be used in powder coating applications where improved weatherability and heat resistance are required.
How to use
SiSR-255A can be copolymerized or cold blended
with a variety of organic resins. Sufficient excess carbinol functionality must be provided for optimum compatibility and resin stability.
Cold blending with SiSR-255A is more cost-effective compared with copolymerization, but limits the organic
resin selection because of compatibility.
Packages & Loading pictures
ABOUT SUNOIT
Since 2018, the company developed specialty silicones consists of silanes, silicone fluids, modified silicone fluids, silicone emulsions, silicone resins, silicone rubbers, etc.
Today, Sunoit is developing into a comprehensive company integrating manufacturing, research and trading.The materials from Sunoit are widely approved or certified by ISO quality management system, EU REACH, SGS,etc. We have built deep and stable business relations with more than 200 clients in the world.
With a broad development horizons and efficient management, Sunoit continue to provide high-quality products and customized solutions to global customers. We will keep moving forward and strive to become a leader and innovator of specialty chemicals.
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FAQ
Q: Can you offer specialized products according to customers' request ?
A: Yes. We are professional manufacturer and supplier which is flexible to offer customized products based on your applications.
Q: Do you provide free samples ?
A: For new client, samples 250g is free for you if you can pay the freight cost. Samples will be sent through Fedex/DHL/UPS.
Q: What is the payment term and method ?
A: Swift Transfer T/T, L/C, Western Union, PayPal, Alipay, etc.
Q: What incoterms is available which we can work with ?
A: EXW, FOB, FCA, CIF, CFR, CIP, DDU, DDP, etc.
Q: Which is the nearest sea port to your warehouse or factory ?
A: Shanghai or Ningbo.
Q: What is the lead time when we place order ?
A: About one week if we have stock. If there is no stock, the lead time will be around 10 to 20 days in normal times.
Q: What shipping methods is available ?
A: Express courier like DHL, TNT, FEDEX, UPS. By air, By sea, By road, By railway.
Q: Do you have Safety Certificate or Report for Transportation of Goods ?
A: Yes. All of our products are approved by 3rd Party with Safety Certificate for Transportation. If one product belongs to IMDG chemicals, all necessary docs and certificate is available to ensure exporting overseas.
