The continuing saga... I am now ready to paint the bottom of my Cat 22--The pt there is almost gone--it was red, and now its pink---I dont know what kind it was, but it had been in the 20 for 4 years---so I am leaning on ablative of some sort, but I dont know----Anyway to tell?---If I am going to trailer sail this how much has to be removed b4 I rept with a more apropos paint?? Also if I am sanding is a respirator necessary???You have all bn so kind in responding to my naive posts---tyvm---Chuck