I've heard bad things about resolene. I think some people have gotten better results with diluting it.Hitting a mental road block with my current rehab. Dyeing a red bag black. I'm probably done with the dyeing and having a hard time moving to the next step which is Resolene. I just don't want to sacrifice the classic feel and sheen of the leather. Probably going to stop at this point and just think about it for a little while. Is it going to be absolutely necessary to use a sealant?