Do you mean HD80? Are you Sure it is a solid stain? I know Behr makes a 'solid latex stain' which is just paint. I had to explain to a few customers the difference. Give echochem a call if it is paint. They will be able to help you out. I lost a lot on one job by not doing a test spot when I wasn't sure. Had to chalk it up as a lesson learned. HD80 will strip a solid stain with a really hot mix and a few applications. Just be prepared to do some sanding.