Enamel paint on underseal

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andrew.searston
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Enamel paint on underseal

Post by andrew.searston »

Hi everyone
Does enamel coach paint react when applied on top of black body underseal?
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Mark Wilson
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Re: Enamel paint on underseal

Post by Mark Wilson »

Can't imagine that any paint will adhere to bituminous underseal without cracking or crazing - certainly wasn't in good condition on mine when I got it.
biomed32uk
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Re: Enamel paint on underseal

Post by biomed32uk »

If you mean overpaintable stonechip then no its fine, I have just done my inside floorpan with epoxy mastic 121, a coat of Gravitex and couple of coats of Tekaloid.

If its old or normal bitumen underseal externally then it obviously wont even adhere.
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andrew.searston
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Re: Enamel paint on underseal

Post by andrew.searston »

It’s a stone chip then I’ll be painting on top with enamel paint synthetic
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kennatt
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Re: Enamel paint on underseal

Post by kennatt »

stone chip is designed so that it can be overpainted,just try a bit where it can't be seen,if its oil based coach paint then it may go on top of normal underseal,again just try it somewhere.
Mark Wilson
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Re: Enamel paint on underseal

Post by Mark Wilson »

I have painted stonechip on mine, but I've always thought of stonechip and underseal as two different things. If you have bituminous underseal which is hard enough to form a sound base for paint I suspect it will be susceptible to cracking and water retention - it was intended to protect by staying flexible, but tends to harden in time.
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