Originally Posted by
sensei
If you really understood what speed was saying, you would realize that he simply meant they post cure all epoxies @ 160 degrees without spelling it out for you, plain and simple.
The caution label from West Systems is really for the unknowing hobby types because there are many manufacturing applications that require heating epoxy resins well over 120 degrees as part of the processing.
You have stated heat is only used as a processing means to decrease the cure time when utilizing pre-pregs as your manufacturing media. You might consider staying away from entering into disagreements on a subject you have clearly illustrated you possess limited knowledge of.
Bob
All I disagreed with were the two points I listed. The rest of the post is direct from the West System web site I cannot take credit for that. As far as knowing what they are talking about I think their expertise far outstrips anything you have to offer. By the way I still disagree with those two points. His remarks were inclusive of all epoxies and that is not true as some are designed to work in less than ideal environments. It wasn’t a criticism or rebuke but an observation from my experience using the West System. Hobby epoxies tend to be similar in that they work in less than ideal conditions. Most problems occur because modelers mix improperly or use epoxy that has been sitting around for years or has been contaminated. The OP is using it for a barrier coat against fuel penetration I don’t see any reference to using it for bond or adding strength. The cure he would get in less than ideal temps would be sufficient.
As to the West System web site the manuals, videos and general information is much more informative than the self posturing and poor attempt at putting down any who would dare to offer an opinion that might run contrary to the grand Wazoo and his elf.
Dennis