I installed new windows about two years ago and they came with a protective plastic film . Over a period of time I forgot to remove this film and it has become baked on with the sun. I have tried almost everything to remove it but with no success. Any ideas anyone ?
I`ve just tried the petrol with a hard plasttic brush and it seems to be the best cure so far but very tedious ! Thank you all for your ideas ! (Only another 12 windows to go ! )