We buy our dpm from a local distributor. In bulk(20 liter container) is much cheaper for us, like 1/3th of price compared to liter bottles.
I think we now put 3 or 4 liter of printed parts through the form wash with dpm and it hasn’t saturated. After about 2 months we still don’t have to top up the formwash which is impossible with ipa.
And yes, the coating of the wash and platform has disappeared… but machine works fine still.
@tech_nickl how long do you do a wash session? We do around 10 to 15 minutes, then rinse in hot water and then spray dry.
Another plus: we used to need different buckets for rigid and standard resins otherwise rigid particles would ruin our parts. This is not needed since we use DPM.