epoxy w/o induction time?

B

Bentrustynail

Haven't done it, not going to do it, but just curious: what negative effects occur when you use the epoxy without the 30 minute induction time?
 
I don't have an answer because I've always followed the recommended induction time, but I do wonder if SPI will have an equivalent to DP402LF activator whereby you can mix epoxy and spray without an induction time. The trade-off is less pot life time.

Mike
 
It has been my understanding that it gave the chemicals time to crosslink. I do know that the longer it sits the thicker it gets. Shine let's his sit overnight in a covered cup.
 
Last edited:
I'm like Brad, started years ago with no induction time and still find myself mixing and shooting. Never really noticed any difference.
 
'68 Coronet R/T said:
I'm like Brad, started years ago with no induction time and still find myself mixing and shooting. Never really noticed any difference.
Click to expand...

Some painters can spray anything nice and slick. For the painters trying the epoxy out for the first time the induction time helps to lay down a slick coat, that's what Barry told me a while back.
 
MikeS said:
I don't have an answer because I've always followed the recommended induction time, but I do wonder if SPI will have an equivalent to DP402LF activator whereby you can mix epoxy and spray without an induction time. The trade-off is less pot life time.

Mike
Click to expand...

I'm not 100% sure DP is a true epoxy, so not sure if it applies to the same rules.. I could be wrong.
 
Ever since the new recommendations came out, I try to let the material induce, but sometimes I have to just stir the piss out of it for 10-15 minutes or so and go for it.
 
yes same here. the no induction was a selling point some years ago then i suddenly got labeled induction was needed. it just comes down to sprayability. its supposed to spray better but i cannot tell a difference either way. with or without induction the epoxy cures and functions just the same. no harm in going either way.
 
If you are a shop with perfect filtration and air control, the induction is basically a waste of time unless you are adding reducer, then you must induce.

If you are a do it yourself-er with a not so good environment to spray in, the induction will help compensate for a few problems, this is the main reason we said induce.

Only other time is if doing trim or where epoxy will be exposed to UV's a lot then we have learned 4 hours really makes a difference with fastness, in this situation, especially if high humidity the day you are spraying, can easily make a 4-6 year longer life before bleaching.
 
You must log in or register to reply here.
Back
Top