Pioneer in plastics


Fast Curing Phenolic Resin


It is a powder novolak resin which contains fast curing performance by special techniques.
It could improve the moldability of the friction material. Therefore, it may lead to the reduction of process cost.


✔ Moldability

✔ Fast curing

✔ High crosslink density

Main Grades

Grade Features Flow
125℃, mm
Gel Time
150℃, sec
Free Phenol
PR-51794 Short flow 13 90 2.0
PR-53724 Long flow
Low Free Phenol
33 120 <1.0

  • The values in this material are the representative values.

Technical Data

Short-time molding property

Composition: Resin/Aramid fiber/Barium sulfate/Calcium carbonate= 18/2/40/40 vol%
Condition: Mold at 150ºC and check cracks in appearance molding time

Items Non-modified resin Fast curing resin
Shortest molding time (sec.) 140 120

Curast torque

Test condition: 150℃×10min

Fast curing resin shows quick rise of curast torque and has excellent curability.

Rise of glass transition

Composition: Resin/Barium sulfate =1/1(wt)
Molding Condition: 1min for each temp.
Tg:Calculated by E″ peak by DMA

Fast curing resin has high crosslink density after curing.

For inquiries on this product

Polymer Sales Dept.
High Performance Plastic Products Business Unit
Sumitomo Bakelite Co., Ltd.
2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan
Tel: +81-3-5462-4764