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Open Roads Forum  >  General RVing Issues

 > Question for ZEP (RMP) users?

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zigzagrv

Nazareth, PA

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Posted: 08/13/19 11:22am Link  |  Quote  |  Print  |  Notify Moderator

I put ZEP acrylic floor finish on my motorhome about 8 years ago. It solved my problem of peeling gelcoat. However, and I knew this beforehand, that ZEP has little or no UV protection. I just finished stripping and recoating the passenger side of my motorhome since it gets the full afternoon sun where it is parked in my yard. This is the third time for this. The drivers side looks just like it did when I first applied it, and have only cleaned and added another layer of ZEP a couple times during that time.

My question is this: Has anyone who uses ZEP tried coating it with something like 303 Protectant, which is a great UV protector, and what were the results?


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wildtoad

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Posted: 08/13/19 04:27pm Link  |  Quote  |  Print  |  Notify Moderator

I don’t have any long term experience but when I used Mop-in-Glo on mine I knew it would need some UV protection. It can not hurt to apply 303 and will delay the time you need to refresh the ZEP. ZEP is not a once and done forever deal.


Tom Wilds
Blythewood, SC
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zigzagrv

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Posted: 08/13/19 05:19pm Link  |  Quote  |  Print  |  Notify Moderator

wildtoad wrote:

ZEP is not a once and done forever deal.


Neither was the gelcoat. [emoticon]

Charlie D.

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Posted: 08/13/19 06:19pm Link  |  Quote  |  Print  |  Notify Moderator

Any issues with your decals?


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B.O. Plenty

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Posted: 08/13/19 06:55pm Link  |  Quote  |  Print  |  Notify Moderator

I did all the prep work then used the Zep. Looked great for a few months. Then it started to crack and flake off. What a mess. Had to use stripper and scrub several times to clean it off. Finally had it painted and never looked back. In my opinion the only real solution is paint. RV dealers are not usually equipped to do this and farm it out, then mark it up. Shop some truck and equipment shops that will have a big enough paint booth.

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zigzagrv

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Posted: 08/14/19 06:42am Link  |  Quote  |  Print  |  Notify Moderator

Charlie D. wrote:

Any issues with your decals?


Believe it or not, the swirls are actually PAINT....no decals.

zigzagrv

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Posted: 08/14/19 06:56am Link  |  Quote  |  Print  |  Notify Moderator

@B.O.Plenty.....As I said in first post, I've had ZEP on for about 8 years and am very pleased with it except for the passenger side. The original gelcoat started peeling after about 5 years. Had read results of folks using Red Max Pro (ZEP), so removed all gelcoat and put on ZEP. Except for the UV issue, I'm happy with the results.

Stripping the ZEP was quite a bit easier than removing the gelcoat, though it still is a pain in the butt.

JimK-NY

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Posted: 08/14/19 08:33am Link  |  Quote  |  Print  |  Notify Moderator

I am on my 4th year with the original ZEP coating. I have had to redo the nose of the camper due to the stripping needed to remove baked on bugs. I have put a quick thin coat of ZEP on the rest of the camper a couple of times. That seemed unnecessary. With ZEP the camper washes easily and then looks like new. My camper is also parked so that one side is in shade and the other in partial sun. I can see no difference. I read that you can apply 303, let it dry and then coat with ZEP. I can see no reason to do this. UV light does not seem to cause any issues and the ZEP protects the surface from oxidation.

I have heard complaints that the ZEP will peal off the surface after a few months or years. I believe insufficient surface prep is the issue. Prior to ZEP, I thoroughly washed, then used ammonia floor stripper. I then rubbed down the entire surface with a Scotch pad and Bar Keepers Friend. Bon Ami is another choice. I did a final rinse and then applied several coats of ZEP. That sounds like a lot of work but actually was easier than using applying a coat or two of paste wax.

One of these years I will probably need to strip and reapply ZEP. There is a ZEP stripper, but I found a dilute ammonia solution works well. I recommend at least 4 thin coats.

zigzagrv

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Posted: 08/14/19 12:32pm Link  |  Quote  |  Print  |  Notify Moderator

I used the ZEP stripper, and it works great. Only 10 bucks a gallon. I used maybe a quart and a half to do the passenger side of my 33' motorhome. I use it with a 2 water to 1 stripper mix.....works fast.
That side gets brutal afternoon sun but the drivers side is in the shade and have only given it a new coat 2-3 times in the 8 years or so since I put on the ZEP. Have never stripped it.

When done with the stripper, I wash thoroughly with dish soap and rinse well.

Can't see putting 303 on first??? Seems like it wouldn't do anything for the ZEP. When I get a chance, gonna pick up some 303 and test it on one area.

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