Petty much yes but if you go to far you will change the gloss levels and have a shiny spot where you have heated it also need to be carefull as you will loss the grain and have a flat spot,i am guessing they are made from pp rather that a pp/abs mix polymer so will not need much heat before it starts to melt so best try 160c and increase if needed also dont hold on area for long just a little heat goes along way