Windshield Repair Forum

Hi guys

Just a query regarding resins. I believe I read somewhere that to cure the resin you need UV light but also to eliminate air with the cure tab because curing is an ANAEROBIC process ( as opposed to Aerobic which is Jane Fonda dancing in her underwear!)

If so, then why do you need to block the UV when doing cracks and long legs in case the sun cures it before its filled the leg?? As the leg fills, it shouldnt cure without a tab or tape to block the air aswell.

I am talking about Magnibond and such resins, not stuff like Nano470 which doesnt need UV.

Thanks for all the advice so far, it been very useful, especially tapping bulls eyes with a drop of resin in the drill hole....it almost fills the bulls eye and eliminates the air at the pvb making for a very decent repair.

It needs to be without air to cure PROPERLY, it will however set up or cure with some air about.

graham wrote:If so, then why do you need to block the UV when doing cracks and long legs in case the sun cures it before its filled the leg?? As the leg fills, it shouldnt cure without a tab or tape to block the air aswell.

It will still cure without a tab on it and like you said, won't feel the entire break.

I will tell you the answer I would often hear as a kid. BECAUSE

Put two drops of resin on a windshield.
Put a cure tab on one of them, but leave the other one alone.
Let us know what happens.

I can tell you the answer to that one, I demonstrate it most weeks to new techs.

Is this an AD for your Nano resin?

Hope not a resin you can't control is junk. unless you work in total darkness the whole idea behind a resin that cures with I've is you can block it till it's filled then set off the cure. The Nano fantasy has been flushed like the stinker it is here before.