dryout

[jonnyques]

Hi I just recieved a bottle of dryout from LResins. They say this is totaly safe on the PVB. It smells like acitone. Anyone know if this is all it is? Here on the fourm some feel acitone IS bad on the PVB... correct?
I guess a trus test would be try it at a wreckers on a smashed windshield and see what happens!

[screenman]

i used to buy dry out solution from Novus in the early days it was mostly acetone with something else added I am not sure what it was possibly a placebo to fool us I soon changed to just acetone and found know difference.

Yes acetone will definately soften the pvb and I do not use it everytime I dry out but only with some problem cracks. I would rather end up with a repair that has a slight amount of pvb damage but is strong and reliable than one that still has moisture in it.

There is somehow a line of thought that says that when acetone is mixed with water and warmed the acetone will evaporate first and leave the water behind, But other tests show it does lower the boiling point of water.

A proper dry out technique is the difference between a good technician and a bad one. ( bet this remark ruffles some feathers. )

[chip-gone]

"There is somehow a line of thought that says that when acetone is mixed with water and warmed the acetone will evaporate first and leave the water behind, But other tests show it does lower the boiling point of water. "

Well, that is how alcohol distillation works. After fermentation, heat the mash (water/alcohol/yeast/grain mixture) above the boiling point of the alcohol but below the boiling point of water. The alcohol evaporates, leaving the water and other materials behind. I would expect that an acetone/water mixture would leave water behind in the break. Now, if you could flush the water OUT using acetone as a displacing agent, that might work, but would require some serious pressure

ted

[screenman]

Chip-gone.

Are you definately saying that mixing acetone with water will not change the boiling point of it. Or that you can remove it seperately if you can control the heat applied to it.

[Mikedoby]

I use the Dryout from Glass Mechanix. I have not seen the MSD sheet to determine the formulation, but GM states that it does not contain alchol or acetone that could cause damage to the laminate. I use it quiet a lot when repairing cracks that might possible have moisture before attempting the repair. I have never had a problem, yet :?:

[Fasbreak]

I used Liquid Resins Dry Out Solution for the first time today, and I could not believe the difference in the quality of my repair. The moisture was removed very quickly. My customer was astonished and I got a 50 spot as a tip on top of my 50 dollar charge. I will definatly need it this winter in Wisconsin, and I am glad it works so well!