Quickly remove Rain-X and other hydrophobic coatings from the damage area with Steel Wool Size 4-0 before beginning your windshield repair. These coatings prevent pit resin from bonding during a windshield repair so this is a must-have accessory for your windshield repair kit.
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One problem that plagues windshield repair technicians is the use of various hydrophobic coatings. The coatings cause water to bead up and roll off windshields. The problem they pose for repair technicians is that these coatings prevent repair resins from fully bonding to the glass which may cause the cured pit resin to pop out when scraping a repair flush.
Rain-X® and Aquapel® are probably the most common coating products. It is always a good idea to test the windshield. See if there is a coating application before starting the repair. To do this, cover the area to be repaired with a Chip Saver patch to prevent liquid from infiltrating the break and spray it with water or glass cleaner. The water will bead up on the glass of a windshield with this treatment.
The good news is that applying a windshield coating is done with an applicator or soft cloth. So, the liquid does not penetrate deeply into the damage, but remains mostly on the surface. This makes removal relatively easy one of the two methods recommended by Delta Kits.
Firstly, every Delta Kits car windshield repair kit includes 4-O steel wool expressly to removing hydrophobic coatings. You simply take the steel wool and rub it vigorously over the repair area to remove the coating.
Secondly, an option utilizes the moisture evaporator which is normally used to remove water from a break. The heat of the moisture evaporator will burn away any coating in a matter of seconds…. Continue Reading