Dichloromethane Vapor Treating PLA parts

thingiverse

Following A.Bowyer's post, I purchased a 550ml Weck Jar and Dichloromethane after watching Acetone Vapor Treating videos. Heating the jar to around 100 degrees with its lid on produced vapor, which smoothed out the part within 2-3 minutes. My PLA printed part was made of 0.25mm layers and 0.55mm tracks; it became very flexible after treatment but regained its rigidity in about 18 hours. A brief Dichloromethane exposure noticeably improved layer visibility, yet kept the part solid. However, due to its potential link to lung, liver, and pancreatic cancer in lab animals, use this chemical cautiously, with adequate ventilation or preferably outdoors. When handling the vapor, maintain distance and avoid skin contact; consider using a scoop or hook for removal.