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Acid Resistance Phenolic Resin Suppliers Synthetic Polymers Bakelite Powder Granular - China
price: check with company for price
Pellets Bakelite Phenolic Resin with Low Free Phenol for Foundry Resin Coated Sands Product description Bakelite Phenolic resins Pelletsare synthetic polymers formed as condensation products of phenols and aldehydes by acid catalyst.
The reaction forms novolac resins.
These resinsare not heat-sensitive.
Warm Coating Process In this process, the phenolic novolak resin is used in the form of a solution in methanol and water.
Powdered hexa is first added to sand heated to 6090 in mixing equipment.
After a brief mixing period, the alcohol solutionof resin is metered in and the sand thus coated.
At the same time, hot air is blown through the mixer to drive out solvents and water.
Calcium stearate is added shortly before the end of the mixing period.
The coating process is concluded by cooling and storing the dry, free-flowing resin coated sand Specification: - - - - Properties | Value | Test standard | Curing time @150C | 28-32s | GB/T24411-2009 | Soften point | 90-92C | GB/T24411-2009 | Free-phenol | 0.5-1.5% | GB/T30773-2014 | Appearance | light yellow pellets | GB/T24411-2009 | - - - - Packing&Storage the package is paper-plastics bag in 25KGS each one The storage life of this product is several months in a cool and dry place in original closed bags
Company Contact:
- Posted By: Jiaxing Honing Import&Export CO,.LTD
- Phone: 86-573-82512625
- Address: ROOM212,HONINGXING GARDEN SOUTH, HONGXING RD.JIAXING CITY ZHEJIANG,CHINA, Jiaxing , Zhejiang , China
- Email:
Published date: January 15, 2018
- Business Description: We produce different quality moulding compounds for various uses, from household handles to electric appliances, from meters parts to automotive parts.
Backed by decades of experience, we are able to help you shape a better product at saving cost.
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