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Customized Bakelite Phenolic Resin Pellets 9003 35 4 Low Gas For Foundry Resin Coated Sands
Customized Bakelite Phenolic Resin Pellets 9003 35 4 Low Gas For Foundry Resin Coated Sands
Specifications
Brand Name :
HONINGLITE
Model Number :
F1396
Place of Origin :
CHINA
MOQ :
1000KGS
Price :
Negotiation
Payment Terms :
T/T, L/C, D/P
Supply Ability :
5000TONS PRT MONTH
Packaging Details :
25KGS BAG
Appearance :
pale yellow granular
Package :
25kgs bag
Free phneol :
low
Molecular weight distribution :
Medium
Features3 :
fast cure
Application :
coated sands
Description

Pellets Bakelite Phenolic Resin with Low Gas for Foundry Resin Coated Sands

Product description

Bakelite Phenolic resins pellets are synthetic polymers formed as condensation products of phenols and aldehydes by acid-catalyzed. In acid, the reaction forms novolac resins. These resins require a curing agent - often hexamethylenetetramine or hexa.They are not heat-sensitive.

Pellets Bakeite Phenolic Resin for Foundry Resin Coated Sands

Process Method

Hot Coating
The washed and dried silica sand is heated to 120–150℃. The granulated phenolic novolak resin , with a melting point of around 80–100℃, is added to the mixer at 1–5% resin (based on sand and depending upon application). It melts and coats the grains of sand. The quantity of HMTA required for later curing of
the resin is then added as an aqueous solution (25–40% solids). Sufficient hexa solution to both cool the sand and deliver the correct amount of curative is added.The hexa level is 15–20% on the basis of resin, depending upon the desired properties. The cooling effect produced by the addition of the water solution prevents premature curing of the binder, although it is possible that some degree of cure occurs. Additives such as calcium stearate are incorporated during this stage of the coating operation.

Specification:

Properties Value Test standard
Curing time @150°C 30-35s GB/T24411-2009
Soften point 90-92 GB/T24411-2009
Free-phenol 3.5%max GB/T30773-2014
Appearance light yellow granular 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

Product tags

refraline fire clay

,

fire clay mix

,

refractory fire clay
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Customized Bakelite Phenolic Resin Pellets 9003 35 4 Low Gas For Foundry Resin Coated Sands

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Product Detail
Brand Name :
HONINGLITE
Model Number :
F1396
Place of Origin :
CHINA
MOQ :
1000KGS
Price :
Negotiation
Payment Terms :
T/T, L/C, D/P
Contact Supplier
Customized Bakelite Phenolic Resin Pellets 9003 35 4 Low Gas For Foundry Resin Coated Sands

Jiaxing Honing Import&Export CO,.LTD

Site Member
8 Years
zhejiang, jiaxing
Since 2014
Business Type :
Manufacturer, Importer, Exporter, Trading Company
Main Products :
Bakelite Phenolic Resin, Novolac Phenolic Resin, Phenol Formaldehyde Resin
Total Annual :
10000000-50000000
Employee Number :
>300
Certification Level :
Site Member
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