How quickly does amine blush form?

[Dave Lochner]

Originally Posted by Olddave

I have never heard of alcohol being used to remove Amine Blush. AB is water soluble, so is alcohol really removing it?

Use alcohol to clean up tools, small spills etc.

Amine is water soluble, so warm water and a scotchbrite cleans that us.

Dave

[paxfish]

Originally Posted by Olddave

I have never heard of alcohol being used to remove Amine Blush. AB is water soluble, so is alcohol really removing it?

If it appears I just use water and a scotch brite as recommended by West System. Never had any problems.

I am very careful with the dust when it is less than a few days old. Got sensitised years ago and came up in welts. Better work practices has kept me good since then.

Dave

Dave.

Water works fine. Isopropyl also cleans the surface completely and has the advantage of evaporating quickly so you can resume work.

[Zach]

Originally Posted by Dave Lochner

Distilled white vinegar, 70+% isopropyl alcohol, and denatured alcohol all work to clean up epoxy before it cures. Each of those are much kinder to the skin and don't destroy gloves as quickly.

Yes they do... Not nearly as quickly, as acetone but they do work to clean up. The quickly part, being that acetone flashes off once clean... No time to drip dry.

You do still have to use a Solvent to de-wax and remove surface contamination before you grind, and before you lay up.

Acetone still works fairly well for that, Interlux 202 is better still.

I use orange citrus type cleaners for skin cleanup, though tend not to keep the stuff off me... A one foot paint roller extension threaded into air rollers and paint roller frames, does a lot to keep the stuff off your elbows.

Cheers,

Zach

[lateral]

Depends on temp. and hardener used.
Tacky is good.

Blush=PIA
Warm water, scrub, continuously replacing rags. clean last.

System three is good.

Acetone aint that bad if you are careful. Your gut even produces a little of it.
Vinegar first. Then acetone.
For secondary bond, peelply rules if used correctly to mop up excess resin for good glass to/resin ratio. You should not have to saturate peelply to remove air.
Imo.