Mild abrasive for fiberglass
I have been washing "Houdini" after our last trip. There was quite the crusted bug population on the front after 6 weeks. I wet the front down and let it set for a while, then sprayed the bug and tar remover on the collection, waited per instructions and then applied the sponge and elbow grease. This seems to work for about 80% of the remains, but there are crusty little bits left. More cleaner applied and more elbow grease but tiny bits still remained. What have others used to deal with these last remaining bits? I thought we could use one of those plastic "brillo" pads - the same you can use for non stick fry pans, but my wife insists that they scratched the fiberglass surface on our old Casita. I am hoping someone has a suggestion that will maintain the shiny surface of the fiberglass yet will not require four or six episodes of elbow grease per nit. Fingernails do ok, but there's a lot of bugs...
Also, the caulking around the vents on the roof have developed some extensive mold spots that resist my best scrubbing efforts. Any suggestions on that one? I guess one is to not worry about it... :-) Thanks
Jenny and Ian