Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-05-2011, 12:21   #1
Registered User

Join Date: Nov 2007
Location: Newport, RI
Boat: Tayana 48 - Mata'irea
Posts: 54
Nu Finish on an Oxidized Fiberglass Hull?

Having previously gone through the work of applying carnauba wax with mixed results, we've pretty much given up on waxing the hull of our boat. But last night while watching TV and recovering from a weekend of bootstripe and bottom painting, we saw an add for Nu Finish Car Polish. Just pour it on and wipe it off and voila - a shiny new finish. This stuff might just be easy enough to give it a try.

So doing a little research today I came across the manufacturer's FAQ's, which advise using an oxidation remover first on old paint that might be oxidized. Our gelcoat is definitely oxidized. If I have to use a cutting compound and buffer to remove the oxidization, that sort of negates the whole ease of use.

Is there another way to remove oxidization?

Any experience with this product?
__________________

__________________
s/v Mata'irea
Tayana 48
www.matairea.com
Mata'irea is offline   Reply With Quote
Old 23-05-2011, 12:44   #2
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,311
Images: 75
Re: Nu Finish on an oxidized fiberglass hull?

no free lunch!! try washing with a degreaser/ detergent/ engine cleaner then a mild phospheric acid solution,then polish with silicon polish
__________________

__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 23-05-2011, 13:06   #3
Registered User

Join Date: Jul 2010
Location: Moncks Corner Sc
Boat: 44 M/Y gulfstar
Posts: 85
Images: 12
Re: Nu Finish on an oxidized fiberglass hull?

Wetsand and then buff
__________________
Keep ur sails wet
wetsail1 is offline   Reply With Quote
Old 23-05-2011, 15:38   #4
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,199
Images: 52
Re: Nu Finish on an Oxidized Fiberglass Hull?

Wetsand and buff x2. I've brought back some severely oxidized hulls this way. We've tried all the "magic solution" solvents and polishes at our yard and none of them deliver like sanding. Heres the trick to doing it fast and easy. If you use a DA (random orbit sander) you will find you can get very fine disks for it. I usually go straight to 800 grit disks, but if the oxidization is really bad start with 600 and finish with 800. If I'm doing a hull I usually guide coat first, it helps you acheive a really uniform finish with no holidays. Make sure you use a proper guide coat or you'll have problems with gumming. After you've acheived an 800 grit profile go to 3m perfect it and buff the whole hull several times. It'll look better than new! This job should take two people about two days to complete on an average sized sailboat. One day for sanding and one for polishing. I mean in the yard with some decent scaffolding of course, in the water would take much longer. Here's a source for 800 grit DA disks. Fisheries Supply
You can go up to 1500 disks but I find 800 buffs out great on gelcoat. Many people buff at 600 but you'll still see scratches if you do. If you go to 600 re-guide coat between grits. Good luck and have fun!!
__________________
minaret is offline   Reply With Quote
Old 24-05-2011, 16:46   #5
Registered User
 
Goomba's Avatar

Join Date: Oct 2010
Location: Haverhill, Ma
Boat: Lido 14
Posts: 18
Re: Nu Finish on an Oxidized Fiberglass Hull?

look up 3M imperial compound on youtube. the stuff is amazing. Just apply to boat/buffing pad evenly, go to town for a minute or so on the working section, take a microfiber cloth and clean off that area.

I just used it on my 1960 lido 14 and it worked great!
__________________
Goomba is offline   Reply With Quote
Reply

Tags
fiberglass, surface finish

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Metal Hull vs Fiberglass sailorgal Monohull Sailboats 32 25-11-2011 07:59
Rust on Our Fiberglass Hull ! ggeardino Construction, Maintenance & Refit 12 16-06-2010 09:29
Hull Finish Restoration geraldbasford Construction, Maintenance & Refit 24 03-08-2009 09:56
fiberglass interior finish dpollitt General Sailing Forum 7 11-05-2008 19:47



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:45.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.