(MCT)—Q: We moved into a home with 20-year-old sliding glass doors that were treated with what appears to be a thin plastic coating or plastic shield for sun glare.
Is there any way to remove this coating?
One slider has clouded over, and the coating has chipped and blistered in spots. It could be a broken seal, but the areas that have no coating are perfectly clear.
A: The best solution I’ve read is from my buddies the Carey Bros. of San Francisco: Spray the coating with ammonia, cover it immediately with Saran Wrap, wait 45 minutes, and then scrape it off with a broad-blade putty knife.
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