We don't recommend using anything to clean out the repair. Most of the dirt and contaminates are on or near the surface, so when you use your pick tool to remove the loose glass, you can also remove the contaminates. Any contaminates that have made their way deep inside the break are usually there to stay. Some technicians will disagree with this opinion, but we have done extensive testing with a variety of products and have not found anything that removes much, if any of the contaminates. Most, if not all solvents that dry quickly and do not leave a residue, will adversely affect the PVB. It's just not worth it.

Typically, only very large, very old repairs will have visible contaminates deep inside the break. Rain-X, Aquapel, etc., are generally applied in light coats, but may penetrate deeper if applied too heavily. Unfortunately, alcohol and other solvents don't remove these products anyway so don't waste your time trying.

In my humble opinion, moisture is really the only thing you need to concern yourself with.

Brent Deines
Delta Kits, Inc.

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