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| Paint over Bitumen? https://ausmini.com/forums/viewtopic.php?f=2&t=94941 |
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| Author: | Mozzie [ Sat Feb 25, 2017 10:54 am ] |
| Post subject: | Paint over Bitumen? |
Has anyone had any success painting over bitumen? I have revived a roundnose project that was a bare metal respray 30 years ago. The floor pan underside has been painted with bitumen and then sprayed with acrylic. The acrylic has peeled back in a few location but OK in about 75% of the floor area. The floor is solid and rust free so I don't want to disturb the bitumen and because of the textured finish, I can't rub back the acrylic. Any suggestions on what type of paint I could use to reseal the underfloor that will stick to both the acrylic and bitumen? Thanks in advance. Mozzie |
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| Author: | awdmoke [ Sat Feb 25, 2017 12:06 pm ] |
| Post subject: | Re: Paint over Bitumen? |
Hate to say it, but bitumen! Black tar over the lot. Will help stop the acrylic from peling off. |
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| Author: | peterb [ Sat Feb 25, 2017 6:09 pm ] |
| Post subject: | Re: Paint over Bitumen? |
Maybe try spraying small area with acetone, might soften paint and allow adhesion. |
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| Author: | Bill B [ Sat Feb 25, 2017 6:32 pm ] |
| Post subject: | Re: Paint over Bitumen? |
The best finish I ever got was with Dulux sound deadener/ ripple finished in Dulux enamel, but they stopped making both in the '80s. Acrylic paint doesn't stick to many surfaces except its own primer. Enamel is much more adhesive - especially after 30 years of the bitumen drying out. |
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| Author: | wild_willy [ Sun Feb 26, 2017 5:03 pm ] |
| Post subject: | Re: Paint over Bitumen? |
I had the same and washed it off with petrol. Slow process but worth it. Nothing will adhere properly and will never look original. |
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