Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 13-10-2017, 08:41   #1
Senior Cruiser
 
maxingout's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Fort Pierce, Phoenix
Boat: Privilege 39 Catamaran, Exit Only
Posts: 2,640
Unpainted mast after stripping the paint - What Happens?

What happens if you strip off the paint on a mast down to bare aluminum, and then you never repaint it?

Would that be a bad thing to do?
__________________

__________________
Dave -Sailing Vessel Exit Only
http://maxingout.com
http://PositiveThinkingSailor.com
maxingout is offline   Reply With Quote
Old 13-10-2017, 08:52   #2
rbk
Registered User

Join Date: Feb 2016
Location: Whitehorse, YT
Boat: Tayana 37
Posts: 489
Re: Unpainted mast after stripping the paint - What Happens?

It will heavily oxidize and pit. Salt and aluminum donít play well together. Any dissimilar metals attached to it without barriers will eat thought it at an incredible speed.
__________________

rbk is online now   Reply With Quote
Old 13-10-2017, 08:54   #3
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: 9,690
Images: 75
Re: Unpainted mast after stripping the paint - What Happens?

it goes a crusty grey and leaves white deposits on your hands when you touch it,apart from that not much else.
my boom is unpainted,un anodised,not much wrong with it after 20 years and a circumnavigation.
it is marine grad alloy though
__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 13-10-2017, 09:01   #4
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 20,530
Re: Unpainted mast after stripping the paint - What Happens?

My guess is it will be better than repainting. Many french boats are not painted. I had a mast completely rebuilt and painted and within a year it was all bubbled up again on the lower 6 feet or so.
The one problem you may run into if the mast is big is it may have fairing compound in it in places. Like where it is joined in the middle or welded there etc. So bare isnt going to look so good.
If I were buying a new boat I would try to get a bare mast over a painted one.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 13-10-2017, 09:09   #5
rbk
Registered User

Join Date: Feb 2016
Location: Whitehorse, YT
Boat: Tayana 37
Posts: 489
Re: Unpainted mast after stripping the paint - What Happens?

Youíre thinking anodized Cheechako. If the OP can anodize and wants to spend the cash itís hands down the way to go.
rbk is online now   Reply With Quote
Old 13-10-2017, 09:16   #6
Senior Cruiser
 
maxingout's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Fort Pierce, Phoenix
Boat: Privilege 39 Catamaran, Exit Only
Posts: 2,640
Re: Unpainted mast after stripping the paint - What Happens?

I am trying to decide what to do when I strip the paint off the mast.

The color of the mast does not matter to me. If it is natural aluminum in appearance, that would be fine with me.

Our 55 foot mast is Lefeill presumably from France on our Privilege 39.

If I paint it, I guess I will have to do it in sections.

The boatyard told me they would do the job for $11,000 and I think I can probably do the job for a fraction of their quote.

I should have made my living painting masts. I could have retired sooner.
__________________
Dave -Sailing Vessel Exit Only
http://maxingout.com
http://PositiveThinkingSailor.com
maxingout is offline   Reply With Quote
Old 13-10-2017, 09:28   #7
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: 9,690
Images: 75
Re: Unpainted mast after stripping the paint - What Happens?

Quote:
Originally Posted by maxingout View Post
I am trying to decide what to do when I strip the paint off the mast.

The color of the mast does not matter to me. If it is natural aluminum in appearance, that would be fine with me.

Our 55 foot mast is Lefeill presumably from France on our Privilege 39.

If I paint it, I guess I will have to do it in sections.

The boatyard told me they would do the job for $11,000 and I think I can probably do the job for a fraction of their quote.

I should have made my living painting masts. I could have retired sooner.
you would want to be sure what grade of aluminium they used if you left it bare.

etch priming with zinc chromate,then epoxy primer,then polyuerathane top coat might cost $1000 in materials,but i doubt it,mine which is 19m used about 7 liters of top coat,5l of primer and about a liter of etch primer
__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 13-10-2017, 09:36   #8
Registered User
 
Terra Nova's Avatar

Join Date: Apr 2007
Location: Marina del Rey, California
Boat: Mako 248
Posts: 4,013
Re: Unpainted mast after stripping the paint - What Happens?

The only reason to strip to a bare mast is if the original finish was not prepared properly or was badly neglected and is blistering under the primer. Otherwise just sand, spot-prime and paint. A proper job is done if you first remove and disassemble the mast and its attachments, then freshly re-bed all fittings after repainting.
__________________
1st rule of yachting: When a collision is unavoidable, aim for something cheap.
"whatever spare parts you bring, you'll never need"--goboatingnow
"Id rather drown than have computers take over my life."--d design
Terra Nova is offline   Reply With Quote
Old 13-10-2017, 09:48   #9
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 5,338
Re: Unpainted mast after stripping the paint - What Happens?

I'm with Terra Nova. Unless the paint is bad in large sections, spot repairs are very practice. It's generally just a few fittings and maybe wear in the lower few feet. Just be careful with the prime and paint.

I've had painted masts. They required some touch-up around fittings. I've had anodized. The best choice, zero maintenance in many (but not all) cases). Going bare depends on the alloy, will always look grey, and could be a mistake. Touch-up seems most rational.
__________________
Gear Testing--Engineering--Sailing
http://sail-delmarva.blogspot.com/
thinwater is offline   Reply With Quote
Old 13-10-2017, 09:50   #10
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 20,530
Re: Unpainted mast after stripping the paint - What Happens?

Quote:
Originally Posted by rbk View Post
Youíre thinking anodized Cheechako. If the OP can anodize and wants to spend the cash itís hands down the way to go.
Nah, none of the big masts are anodized that I know of. No tanks big enough I imagine, and many of those masts are spliced in the middle. Not sure what problems that would result in with crevices etc if you tried to anodize. As I said, bare aluminum is fine. Many aluminum boats are bare aluminum , no anodizing. As with anything, maintenance and smart installations required!
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 13-10-2017, 09:55   #11
Registered User

Join Date: Mar 2015
Location: Chicago
Posts: 87
Re: Unpainted mast after stripping the paint - What Happens?

Sorry to hijack with what might be a dumb question, but what type of anodized coating is typically used on an aluminum mast?

Some of the aluminum cooking pots that I own are hard anodized, and the stuff seems bulletproof. Is the same process used on masts?

Thanks

-BC
BlueChicago is online now   Reply With Quote
Old 13-10-2017, 10:24   #12
Registered User

Join Date: Jun 2015
Posts: 296
Re: Unpainted mast after stripping the paint - What Happens?

Ask them?
Quote:
Originally Posted by maxingout View Post
I am trying to decide what to do when I strip the paint off the mast.


Our 55 foot mast is Lefeill presumably from France on our Privilege 39.
If the right spelling is Lefiell it's an american company, very very unlikely name for a french one.
did-g is offline   Reply With Quote
Old 13-10-2017, 10:57   #13
Registered User

Join Date: May 2011
Boat: Hitchhiker, Catamaran, 40'
Posts: 461
Re: Unpainted mast after stripping the paint - What Happens?

Quote:
19m used about 7 liters of top coat,5l of primer and about a liter of etch primer
Seven liters to paint a mast?
Thumbs Up is offline   Reply With Quote
Old 13-10-2017, 11:14   #14
Senior Cruiser
 
maxingout's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Fort Pierce, Phoenix
Boat: Privilege 39 Catamaran, Exit Only
Posts: 2,640
Re: Unpainted mast after stripping the paint - What Happens?

It is Lefeill and I see they have offices on the west coast.
__________________
Dave -Sailing Vessel Exit Only
http://maxingout.com
http://PositiveThinkingSailor.com
maxingout is offline   Reply With Quote
Old 13-10-2017, 12:01   #15
Registered User

Join Date: Jun 2008
Posts: 286
Re: Unpainted mast after stripping the paint - What Happens?

Quote:
Originally Posted by maxingout View Post
I am trying to decide what to do when I strip the paint off the mast.

The color of the mast does not matter to me. If it is natural aluminum in appearance, that would be fine with me.

Our 55 foot mast is Lefeill presumably from France on our Privilege 39.

If I paint it, I guess I will have to do it in sections.

The boatyard told me they would do the job for $11,000 and I think I can probably do the job for a fraction of their quote.

I should have made my living painting masts. I could have retired sooner.
I re-rigged and re-painted my mast in that yard 2.5 years ago. 60 foot mast, 6 spreaders, 20 foot boom, and rigid vang. The yard didn't know how to quote it and threw out a huge number I've now forgotten. I didn't want to do it myself. They were happy enough with the re-rig job and let me bring in a contractor for the painting. The contractor sanded bare and re-primed only the bad spots, then Awlgripped it all for $4,000.

The mast and boom were rolled and tipped on horses right there in the yard. The spreaders and vang went away, got sprayed, and came back.

I was happy with the work. Send me a PM if you want the contact.
__________________

JayH is offline   Reply With Quote
Reply

Tags
mast, paint

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Stripping paint from textured fiberglass cabin ceiling liner? Cyrus Safdari Construction, Maintenance & Refit 2 21-05-2017 14:03
What happens when your mast hits an opening bridge Cabo Jim Seamanship & Boat Handling 245 30-01-2017 05:42
Stripping one and two part paint from topsides Tatheelrod22 Construction, Maintenance & Refit 1 21-11-2015 04:34
What happens after a bad survey? SeeMonstrEd The Sailor's Confessional 56 02-06-2015 17:25



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 14:52.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.