I found a set of two 230 mesh 24x36" screens on eBay (someone bought them from a screen supply place pre-coated and exposed) for $30 shipped and got them in my hands yesterday. They may be 10 years old for all I know and I can that they were never attempted to be reclaimed. Anyhow, I use Ulano No. 4 cleaner for my screens and that didn't make a dent on these. There is a tiny bit of residual ink, so I know they were never hardened by letting reclaim chemicals dry on them. Suggestions? Other than point blank blasts from the pressure washer? I fear they may bust.