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Prusa Analysis is introducing Prusament Resin Cleaner DPM, a dipropylene glycol monomethyl ether wash liquid positioned as a lower-flammability, lower-volatility different to isopropyl alcohol for SLA post-processing.
The corporate positions DPM as appropriate to be used in its CW1S wash/dry/treatment station and states that it may be shipped worldwide, a constraint that has restricted its skill to promote IPA instantly. Prusa experiences {that a} 2-liter tub of the cleaner stays efficient till it absorbs roughly 100 milliliters of uncured resin. Really useful wash instances are 5 to fifteen minutes, adopted by a water rinse and drying earlier than UV curing.
DPM versus IPA
DPM’s flash level and auto-ignition figures are materially larger than IPA’s, which reduces hearth threat in typical workshop situations. Current security information sheets record DPM with a flash level within the ~70–86°C vary and auto-ignition round ~207°C, in contrast with IPA’s ~12°C flash level and auto-ignition close to ~425°C. DPM additionally has a a lot larger boiling level (about 190°C), which corresponds to decrease evaporation and fewer vapor issues in regular use.
A number of DPM SDS paperwork classify it as a flamable liquid moderately than a extremely flammable liquid, and a few notice it isn’t regulated as harmful items for sure land transport, which might simplify logistics relative to IPA. As compared, many IPA SDS paperwork notice that it’s extremely flammable and might type harmful peroxides when concentrated or aged. Customers dealing with any solvent in wash stations ought to nonetheless mitigate vapor ignition sources and comply with PPE steering.
Testing and availability
Prusament Resin Cleaner DPM is listed in 1-liter and 5-liter canisters at $17.99 and $64.99, respectively. The product web page additionally exhibits pricing at €16.99 and €64.99; on the European Central Financial institution’s euro reference charges on Jan. 23, 2026, these euro quantities equate to roughly $19.95 and $76.31. Prusa presents the cleaner as suitable with the CW1S workflow and positions it as a safer different to IPA for customers in search of lowered volatility and easier delivery.
The claims about sturdiness in use (2 L efficient till ~100 mL resin uptake), wash instances, and rinse/dry steps come from Prusa’s personal testing steering; third-party benchmarking throughout completely different resins and wash stations would add unbiased validation.
Customers ought to seek the advice of native waste rules, as spent wash liquids containing uncured resin sometimes require hazardous-waste dealing with even when the bottom solvent carries a decrease flammability classification.
