Bob Dively masking HELP!!!
 

Looking for suggestions on dissolving the Bob Dively masking. I applied the mask to my canopy a few months ago. I used it to mask when I sprayed polyurethane clear. I left it on as to protect the parts during the rest of the construction. Now It will not come off except for scraping it using my thumb nails. I tried using a wooden scraper but didn't have much success. I tried denatured alcohol and this doesn't soften it either. I don't want to use anything else to scrape it for fear of scratching the clear plastic.

Thanks for your suggestions.

JC

Did you apply 3 or 4 coats of mask, a single coat is almost impossilble to get off because its too thin. Try adding a few more coats of mask and it will come right off.

Thanks Rob I'll try this tonight.

JC

Let us know if that worked.....That stuff is amazing...I LOVE it!

Tried it and unfortunately it didn't work. I put on 4 coats and these came off just fine; however, the old stuff stayed put. I've invested about 6 hours scraping on the windshield so far and still have about a quarter size spot left to scrape. Haven't started on the front windscreen yet! I'm using an old plastic card hotel key that I sharpened the edges on to slowly scrape away this concrete! I'll be faced with polishing the plastic after I finish the scraping.
Ended up with a bit of crazing as well from pushing a little to hard on the plastic. I've tried iso alcohol, soapy water, vinegar, denatured alcohol, mineral spirits and Windex and the mask is un-fazed by any of it.

JC