if its fresh paint you can soak it in 99% isopropyl alcohol to start with 10 minuets. remove and with a old tooth brush start scrubbing, rinse under warm water. you may not see much different at this time. rinse,dry and re-pete for 5-10 minuets..keep doing this if the paint is fresh it will come off less than a hr...(want work on older paint jobs and do not leave in alcohol over 10 minuets at a time)...it will feel a little sticky but no worries once it air dries all will be good..i have did this on resin builds before with no problem..or break out the EZ Off Yellow Can spray it down wait 4 hrs scrub off under warm water re-pet if needed..