I was preparing my solutions for a RDR. I had the two bottles (one white cap, one black cap). I poured one into the bottle and then the black cap into the bottle and I heard a rumbling and the bottle I was using to mix became very hot. Whatever you do, don’t mix product A of RDR and the wood stain remover. lol.
I had a similar thing happen. I wasn’t paying close enough attention and used a bottle I had previously used (It had been quite some time) for wood stain removal. When I tried to mix the RDR I think I had the makings of a small atom bomb. It wasn’t a good thing. I have been way more careful since.