Fiberglass laminate cleaning

brulaz wrote:
Gel-Gloss, Kitchen and Bath Cleaner & Polish
Wash all the loose dirt off first. Let Dry.
Wipe on Gel-Gloss. Let Dry. Wipe off.
Gets rid of the black stains.

I have found it in the appliance area of Home Depot. Around where the drip pans for the stoves are, etc.

Gel-Gloss, Kitchen and Bath Cleaner & Polish
Wash all the loose dirt off first. Let Dry.
Wipe on Gel-Gloss. Let Dry. Wipe off.
Gets rid of the black stains.

I used Meguiar's #67 One Step Compound with an electric buffer. Not an easy job, but results were like new.

Followed up with Meguiar's Premium Marine Wax.

Doug

rexlion wrote:
I keep reading raves about Bar Keepers Friend. Must be pretty decent.

. It is a very mild abrasive and will remove the chalky old gel coat surface. When my 15 year old MH would not take a shine by hand anymore I used it to clean the surface oxidation then I applied wax and was able to hand polish for a few more years. Eventually I used the Zeps floor wax 3 years ago and have been happy with the results. I would not apply the Zeps unless the gel coat could not be brought back with hand polishing.

I keep reading raves about Bar Keepers Friend. Must be pretty decent.

I had some rust stains and blood stains on a boat hull that I could not get out by buffing alone. I ended up using 400 grit sand paper then buffing compound to get rid of the stains. I would start by using Bar Keepers Friend to see if that removes it first then go up in grit size compound from there. Just be careful with the sand paper of buffing wheel you don't want to burn through the gelcoat. A good gelcoat is only about .020 thick. Sidewalls tend to be thinner than the front and rear caps. How old and how weather is your Class C? My guess is the BFK will remove most of the stains.

If it's fiberglass, you could always try The Red Max Pro/Zep Process.
You can replace the floor wax with the car wax of your choice.