Phepreg®  products are especially designed to be in a B-Stage for 6 months @ 68°F (20°C). The recommended curing cycle is 20-30 min. @ 250°F (121°C). Standard Phepreg® products are presented in the following table:
 
 

Phepreg®

Max Tg (oC)*

FST Performance (FAR 25.853 - Appendix F/ISO 5659 - 2 1994)

FP-721

 285

 

.          Flammability

ü  Extinguishing time                 Nil

ü  Burn length                           Nil

ü  Drip extinguishing time          No dripping

 

.          Heat Release

ü  HR - till 3 min. (kW.min/m2)    Not measurable

ü  HR @ 4 min. (kW.min/m2)      7.5

ü  HR @ 4 min. (kW/m2)             30

 

.          Smoke density

ü  20.6 with pilot flame / 15.84 without pilot flame

 

.          Toxicity, ppm

ü  40 / 2 / 0 / 0 / 0 / 0 / 0 (CO / NO2 / HCN / H2S / HCl / HF / HBr)
 

FP-920

 TBD

 

.          Flammability

ü  Extinguishing time                 Nil

ü  Burn length                           Nil

ü  Drip extinguishing time          No dripping

 

.          Smoke density

ü  11.35 with pilot flame / 8.45 without pilot flame

 

.          Toxicity, ppm

ü  40 / 0 / 0 / 0 / 0 / 0 / 0 (CO / NO2 / HCN / H2S / HCl / HF / HBr)
 

 

* To be determined accordingly to ASTM D-648, ISO 75