Properties BZ 3570 BZ 3571 BZ 3572
Uncured Properties
Chemical Benzoxazine - Bisphenol-A Benzoxazine - Bisphenol-F Benzoxazine - Bisphenol mix
No. of component one one one
Colour yellow yellow to brown yellow
Appearance solid solid solid
Density at RT 1.18 - 1.22 1.18 - 1.22 1.18 (indicative)
viscosity 2,000 - 5,000 cP 1,000 - 5,000 cP
viscosity 15 - 19 15 - 19
Moisture Content < 1.0 < 1.0 < 1.0
Cure method 
Mix ratio of epoxy resin 25% 25% -
Vacumm degassing 60°C for 2 hr 90°C for 2 hrs 60°C for 2 hrs
Compression moulding Stage 1: 180°C for 2 hr

Stage 2: 200°C for 2 hr

Stage 1: 180°C for 2 hr

Stage 2: 200°C for 2 hr

Stage 1: 180°C for 2 hr

Stage 2: 200°C for 2 hr

Volume change after cure No No
NVC after cure No No
Cured Properties
Tensile Strength 35 mPa 35 mPa
Flexural Strength 100 mPa 100 mPa
Tg 150 °C 150 °C
Fire resistance Lessor to BZ 3571 More than BZ 3570 More than BZ 3571
Storage conditions
Storage Temperature 25±2 °C 25±2 °C 25±2 °C
Storage RH 50±5 °C 50±5 °C 50±5 °C
Shelf life 1 year 2 year 3 year