Reply To: part alteration Home › Forums › All Things LEGO! › part alteration › Reply To: part alteration March 5, 2015 at 1:35 pm #10638 MatthewParticipant PAINT THINNER! OR LAQUIRE(spelling is hard) THINNER!!!!!!! Just watch out it will melt the ABS and cause streaks, but if you are quick about your work, just apply the thinner(s) to a soft cloth and wipe in a downward motion until its gone, ur good.