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restoring the shine

Deano56
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Explorer
I have decided that the next project will be painting the bottom portion of our motorhome which is galvanized then sanding and buffing the fiberglass. I sanded a area around 18" square starting with 220 and worked my way up to 600 then machine polished to a real nice shine. The sanding was with a 5" orbital, looks like a month long or more job but like the way the sides come back to life. The end caps don't look near as bad as the sides being that its a nicer gel coat job. Almost thought about painting the whole thing. Ouch , anyone else done the same?
21 REPLIES 21

zmotorsports
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Explorer
RayChez wrote:
Zmotorsports, that is a great post on what you have done to your last three coaches. I really enjoyed reading your post and all the work you have put into your coaches. Your Dynasty looks nice on the signature picture.


Thanks, I appreciate that. Mechanically it is rock solid but there are a couple of places where the clearcoat is starting to show some age. I hope it will hold out a few more years and then I will have the entire coach repainted. I don't think we will be getting a different one for quite some time if ever. I really haven't seen anything I would trade it for, at least in our price range.

Thanks again for the compliment.

Mike.
2003 Monaco Dynasty/ 26' Haulmark Edge trailer
2011 Jeep Unlimited Rubicon

wny_pat1
Explorer
Explorer
Deano56 wrote:
mike brez wrote:
Deano56 wrote:
. Either way I will be doing extensive sanding to get it free of the matting showing throughh on the side panels.



Are the sides Filon?
side are fiberglass panels, the matting under the gelcoat can show through after years,
I'll bet that filon, expecally considering the age of the coach (1990)!
โ€œAll journeys have secret destinations of which the traveler is unaware.โ€

RayChez
Explorer
Explorer
Zmotorsports, that is a great post on what you have done to your last three coaches. I really enjoyed reading your post and all the work you have put into your coaches. Your Dynasty looks nice on the signature picture.
2002 Gulf Stream Scenic Cruiser
330 HP Caterpillar 3126-E
3000 Allison Transmission
Neway Freightliner chassis
2017 Buick Envision

zmotorsports
Explorer
Explorer
I have painted sections of both of my last two coaches and the front of my current coach when I purchashed it.

My first coach was a 1984 30' Travelcraft. The side were painted aluminum down to the lower beltline. From there down including the compartment doors were fiberglass. The front and rear endcaps were of course fiberglass but gelcoated. I would polish out the endcaps and then after about six months they would die back again. I wanted them to match the sides which were very nicely done with automotive paint from the factory.

I also didn't particularly care for the color on the lower portion. I sanded the endcaps down with 220 on a DA sander. The gelcoat sanded very nicely but the stripes were painted on so I had to feather out those areas. I was able to match the colors of the stripes perfectly so I merely painted the endcaps then masked out the stripes to continue around just like the OEM had done them. I then clearcoated over the entire surface of the endcaps to bury the paint edges under the clear. I also splurged on the quality of paints, I used only PPG products and the clear that I used was a high solids urethane clear (DC2020).

The bottom section I sanded with the same 220 grit on a DA sander, then masked the beltline upwards with plastic sheeting. I applied an epoxy sealer, then two medium-wet coats of the color of choice (which was much nicer than the pinkish OEM color on the bottom). I then applied two-medium wet coats of clear followed by an over-reduced third coat which really helped flatten the clear out with almost no orange peel. This required very little buffing once everything dried. I did get a few bugs and trash in the clearcoat that required me to spot sand and polish those areas but at least I didn't have to sand/buff the entire thing.

It turned out awesome and we used the coach for six years before selling it and purchasing our 1991 Beaver Contessa. The people who bought it thought it looked like it had just rolled out of the factory.

On our 1991 Beaver I chased the peeling clearcoat almost the entire time we had it, eventually painting/clearing almost the entire thing.

On our 2003 Dynasty when we bought it the front 3M shield looked like crap. It took me the better part of a week to remove it. I completely removed the mirrors, wiper blades and the generator access cover which I painted seperately so I could get around the edges. I then sanded down the entire front end cap up to about the middle of the windshield on the sides of the "A" pillars. This would be the area where I blended the clearcoat due to being quite thin and less work blending.

I sanded the front end down with 180 grit on the DA to feather out and blend as many of the rock chips and damage from removing the 3M mask. I then applied a coat of high build urethane primer, again PPG product (K36). When dried I wet sanded it down with 400 grit wet sandpaper. I applied an epoxy sealer, then the colors which I was able to get the paint codes/mixtures from Monaco at the time. After the color I applied two-medium wet coats of clear followed by a third over-reduced coat to minimize orange peel, this little trick works fantastic. You just have to be careful to not lay this over-reduced coat on too heavy or it will run.

Upon completion again I had a few bugs I had to sand/buff out but other than that it turned out great. It still looks great now after 6 1/2 years other than a few rock chips. The front end cap is the best looking part on the coach. Unfortunately there are several other areas on the coach where the clearcoat is starting to peel. Also unfortunate is that I don't have a place to paint this coach, my last two I painted at my parents farm where I had no neighbors to piss off. I don't dare try to paint this thing in my driveway. I think I may be having to have the entire coach repainted within the next few years.

Mike.
2003 Monaco Dynasty/ 26' Haulmark Edge trailer
2011 Jeep Unlimited Rubicon

RayChez
Explorer
Explorer
Gel coat is Gel coat whether it is on a boat or a RV. The difference is on a boat is thicker. The problem with Gel coat once it has faded, it is very hard to get the shine back. What I done with my boat because it was starting to fade was to apply some polish wax that I bought through the internet called VIP Swirl Away. It was easy to apply and remove and the shine has lasted now over two years.

Now if you have full body paint like I have on my coach you do not want to use any abrasive waxes because of the clear coat that is over the full body paint job. It would dull a full body paint if you apply harsh waxes.

I have had my coach now for ten years since new and the paint job still looks like the day I bought it. Has a full body paint with several clear coats, and all I use is a dry wash with UV protection.
2002 Gulf Stream Scenic Cruiser
330 HP Caterpillar 3126-E
3000 Allison Transmission
Neway Freightliner chassis
2017 Buick Envision

spotrot
Explorer
Explorer
My 2 cents is to use Poli-Glow on very faded gelcoat or painted surfaces.
Used it for years on boats i
So much easier than painting and will stay glossy for 2 years or longer

On my 08 on the dull gelcoat on the nose and on the dulled plastic fenders, I just quickly buffed with Meguiar's #9 swirl remover and foam pad at 1200 rpm. I used #2 fine cut cleaner by hand with a microfiber towel for stains, bugs, etc.. All pretty fast and easy and it looks like new.

jonbushsr
Explorer
Explorer
I used orange hand cleaner with a Milwaukee angle buffer to remove the oxidation from our 1992 Champion Ultrastar. Sides are all fiberglass with metal roof. Then used Red Max Pro(now Zep)for a new shine.

Jon
92 Ultrastar 339TB
5.9 Cummins, MC16-FD Oshkosh

Deano56 wrote:
I have a 1990 Champion LaSalle, there is no clear coat on this model, it is metal on the bottom and fiberglass up to the roof line, near chalky and has lost most of its shine.If I were to put an applied gloss it would be an automotive clear coat which I don't plan on doing unless this is way more time consuming. Either way I will be doing extensive sanding to get it free of the matting showing throughh on the side panels.
Jon
1992 Ultrastar 339 TB
5.9 Cummins, MC16-FD Oshkosh

wirenutz
Explorer
Explorer
road warrior, thanks the pictures helped, I would venture to say my fifth wheel has a gel coat that has worn off, I must say it wasn't a very thick gel coat at all, not like a boat gel coat, very thick
2007 All American Sport Toy Hauler 38 foot, 14,400 LBS dry weight
1999 Four Door Freightliner,new 6 Speed Auto, new Cat Motor, 12,600 LBS, rear air dump, lowers rear by 3", air activated rear locker, air ride seats, air ride cab, air ride suspension

Rascally_Road_W
Explorer
Explorer
wny_pat wrote:
wirenutz wrote:
Rascally Road Warrior wrote:
You should consider using or buying a rotary polisher. You could probably get a cheap one at Harbor Freight for under $50. They also sell the wool pads that you'll need to do the job. I an going to assume that this is a gelcoat finish.

Order some Presta Super Cut Compound (Google it) and go to work. Follow through with some Meguiars #105 with your orbital and a yellow cutting pad. The Presta has a 600 cutting grit and the Meg's has a 1200 cutting grit which finishes to a mirror shine. We rarely ever wet sand going this route and our customers are wowed by the results.


would this method work even if the clear coat is completely wore off ?
You guys are talking two different finishes. Gelcoat and Clear Coat are different!!!


If you have clear coat wearing off (clear coat failure), then it's time to have it re-painted.

Rascally_Road_W
Explorer
Explorer

Clear Coat aka Full Paint


Gel Coat w/vinyl Decals

Boats, RVs, Fifth Wheels can have Gel Coats
Boats, RVs, Fifth Wheels can have Clear Coats

Deano56
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Explorer
popeye766 wrote:
Check out my posts on painting my pace arrow a few months ago.....
link?

Deano56
Explorer
Explorer
mike brez wrote:
Deano56 wrote:
. Either way I will be doing extensive sanding to get it free of the matting showing throughh on the side panels.



Are the sides Filon?
side are fiberglass panels, the matting under the gelcoat can show through after years, it's not like a boat where it has heavy gel coating on top

Deano56
Explorer
Explorer
Rascally Road Warrior wrote:
You should consider using or buying a rotary polisher. You could probably get a cheap one at Harbor Freight for under $50. They also sell the wool pads that you'll need to do the job. I an going to assume that this is a gelcoat finish.

Order some Presta Super Cut Compound (Google it) and go to work. Follow through with some Meguiars #105 with your orbital and a yellow cutting pad. The Presta has a 600 cutting grit and the Meg's has a 1200 cutting grit which finishes to a mirror shine. We rarely ever wet sand going this route and our customers are wowed by the results.
I am fully equipped with polisher (Bosch vari. speed), pads, 3m compounds and anything thats needed to do the job. Now all I need is the time.

popeye766
Explorer
Explorer
Check out my posts on painting my pace arrow a few months ago.....