That's high quality product, even if it is rubber.
Call Kelley, and ask them. I've never used their rubber based paint, so I don't know what 'failure modes' it has.
Kelley Technical Coatings.
1445 South 15th Street P.O. Box 3726
Louisville, Kentucky 40201-3726
502.636.2561 800.458.2842 Fax 502.635.5170
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