Leave 1-2 Millimeters of Existing Bead

July 20, 2015

“Did you ever wonder why we are instructed to ‘leave 1-2 mm of existing bead’ when replacing a windshield? I did, so over the years, whenever I talked to an adhesive manufacturer’s representative, I asked the purpose for that recommendation. Most said it was to prevent damage to the body of the vehicle. However, there are a few other benefits to leaving a little existing urethane attached.” -Bob Beranek


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