Post Cure
I wonder why they did not list glass transiiton temperatures for post cured samples. Room temperature cure data is a bit on the low side.
I use EX-Poxy quite a bit. Room temperature cure glass transition temp is in the 140-150's. Post curing takes that to nearly 200 deg F
E-Z POXY TECHNICAL DATA
E-Z POXY RESIN SYSTEMS FROM COMPOSITE POLYMER DESIGN
E-Z 10 Epoxy Resin E-Z 84 Aromatic Amine Hardener
E-Z 83 Aromatic Amine Hardener E-Z 87 Aromatic Amin Hardener
E-Z 10 Resin (Viscosity 1500 cps @ 77F) with:
Hardener EZ 83 EZ 84 EZ 87
Mixed Properties:
Mixed Viscosity cps @ 77F* 1300 800 1500
Viscosity Hardener cps @ 77F* 410 140 830
Pot Life @ 77F 2 hours 2 hours 5 hours
Tack Free @ 77F 4 hours 8 hours 8 hours
Cure Time @ 77F 24 hours 3 days 3 days
Mix Ratio by Volume 100/47 100/47 100/47
Mix Ratio by Weight 100/44 100/44 100/44
Physical Properties Tg (F):
R/T 151 151 142
P/C* 196 196 196
Elongation % 3.5 3.5 3.9
Specific Gravity 1.14 1.13 1.14
Linear Shrinkage @ 23C (4 days %) .10 .10 .10
Tensile Strength PSI:
R/T 8,200 8,100 8,400
P/C 10,000 10,000 10,000
Tensile Modulus (PSI x 10 -5) 4.8 4.2 4.0
* Viscosity may vary +/- 10%
* Post Cure for 2 hrs. @ 150F