Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 28-09-2016, 08:16   #16
Marine Service Provider
 
newhaul's Avatar

Join Date: Sep 2014
Location: puget sound washington
Boat: 1968 Islander bahama 24 hull 182, 1963 columbia 29 defender. hull # 60
Posts: 3,282
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by Kita View Post
I would consider a good quality epoxy paint & a good primer underneath. It's easy to touch up & will last almost as long as a powder coat & way cheeper.. to the fellow who thinks it's not needed? Don't know where you are but in the FL sun & salt bare aluminum pits up in no time here,some extruded aluminum is already anodized and that may be what they use to Mount Your solar panels and that stuff holds up better but once you weld it where it's welded there is no anodized stuff anymore so you need to do something with that but that's why they bolt or screw that stuff together and try to stay away from welding it.
Actually I do bolt all of the frames together on customers vessels .
I see I did forget to mention that you should start with high quality aluminum to begin with and as far as welds I just brush on a light coat of clear fingernail polish.
( remember that the color people recog use as aluminum is actually oxidized the actual color of pure tig welded aluminum is ashen white not shinny)
__________________

__________________
Non illigitamus carborundum
newhaul is online now   Reply With Quote
Old 28-09-2016, 08:26   #17
Registered User

Join Date: Sep 2014
Posts: 380
Re: Powder coat or anodize my solar frame

powder coating of tempered aluminum will change the composition of the aluminum because it is a heat treatment
either anodize or leave in alone.
__________________

__________________
bsurvey is offline   Reply With Quote
Old 28-09-2016, 09:21   #18
Marine Service Provider

Join Date: Jun 2016
Posts: 159
Re: Powder coat or anodize my solar frame

Don't overlook the wonders of good old fashioned Carnauba wax, which like equally old fashioned aspirin (willow bark tea) is a miracle product by most standard.

Good luck

John Mardall
Vetus Maxwell Group
__________________
JOHNMARDALL is offline   Reply With Quote
Old 28-09-2016, 09:34   #19
Registered User

Join Date: Apr 2007
Location: New England
Boat: lagoon 380 s2
Posts: 483
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by Kita View Post
I would consider a good quality epoxy paint & a good primer underneath. It's easy to touch up & will last almost as long as a powder coat & way cheeper.. to the fellow who thinks it's not needed? Don't know where you are but in the FL sun & salt bare aluminum pits up in no time here,some extruded aluminum is already anodized and that may be what they use to Mount Your solar panels and that stuff holds up better but once you weld it where it's welded there is no anodized stuff anymore so you need to do something with that but that's why they bolt or screw that stuff together and try to stay away from welding it.
any suggestions on the paint type/brand? I like this idea, simple for me to do! Inexpensive as well, and might work to prevent water from hitting the alum and corroding it.
__________________
jbinbi is offline   Reply With Quote
Old 28-09-2016, 12:21   #20
Registered User

Join Date: Dec 2011
Posts: 387
Re: Powder coat or anodize my solar frame

The surface of anodized aluminum will out last paint in most cases but it still conducts electricity. Painted aluminum will not. Salt and aluminum, even anodized aluminum, together make small batteries that eventually eat holes in the metal. 30yearslater mentioned a great idea, never heard of painting or power coating over anodized aluminum before and have it come out well, but if it works as he says that covers all the bases.
__________________
jmschmidt is online now   Reply With Quote
Old 28-09-2016, 14:37   #21
Registered User
 
Dave852's Avatar

Join Date: Mar 2007
Location: Tavernier, Fl
Boat: Outremer 50
Posts: 647
Send a message via Skype™ to Dave852
Re: Powder coat or anodize my solar frame

Painted aluminum will look great for a while either polyurethane or powder coat but will fail eventually. Anodized is best practice and will look good for the longest, easy for small parts but a lot of effort for long parts. Bare aluminum will be some what of an eyesore but at least it will not be rotting under the paint. Guess it depends on how much effort/expense you want to put into the project and how long you need it to look good for.


Sent from my iPhone using Cruisers Sailing Forum
Dave852 is offline   Reply With Quote
Old 28-09-2016, 14:43   #22
cruiser
 
ur2slo's Avatar

Join Date: Jun 2012
Location: Here, not there.
Boat: Kettenburg K40
Posts: 189
Re: Powder coat or anodize my solar frame

Lots of the commercial fishing boats up this way in the PNW run aluminum tower's and gear.

Jus us stupid sail boaters use Stainless Steel , Bronze, $$$ and more $$$$ to doll things up...KISS always works..........
__________________
ur2slo is offline   Reply With Quote
Old 28-09-2016, 14:44   #23
cruiser
 
ur2slo's Avatar

Join Date: Jun 2012
Location: Here, not there.
Boat: Kettenburg K40
Posts: 189
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by newhaul View Post
( remember that the color people recog use as aluminum is actually oxidized the actual color of pure tig welded aluminum is ashen white not shinny)
6061 T6
__________________
ur2slo is offline   Reply With Quote
Old 28-09-2016, 14:48   #24
cruiser
 
ur2slo's Avatar

Join Date: Jun 2012
Location: Here, not there.
Boat: Kettenburg K40
Posts: 189
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by jbinbi View Post
any suggestions on the paint type/brand? I like this idea, simple for me to do! Inexpensive as well, and might work to prevent water from hitting the alum and corroding it.
Having painted many aircraft, I used Awlgrip, sprayed. BUT, you do need to acid etch and alodine it or you will fight adhesion....looks great holds up fairly well...IF you don't chip it or ding it with sumthin.

my 2 cents. that and a nickle will get u ....well 7 cents...


__________________
ur2slo is offline   Reply With Quote
Old 28-09-2016, 15:55   #25
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 4,179
Re: Powder coat or anodize my solar frame

I had a factory painted mast once. Great job.

But eventually you get a few tiny failures, and unlike raw or anodized aluminum, the corrosion concentrates in the one spot and digs. Better to have light, all-over oxidation.

Never again. Folks like the way it looks, but from a functions standpoint, in a marine environment, it is all bad.

I only paint interior aluminum.
__________________
Gear Testing--Engineering--Sailing

Writing full-time since 2014.
Bookstore:http://sail-delmarva.blogspot.com/20...ook-store.html
thinwater is offline   Reply With Quote
Old 28-09-2016, 16:21   #26
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 10,968
Re: Powder coat or anodize my solar frame

I do not know their secret, but I own a RIB with a powder coated hull. It is now 12 years old, with constant daily usage. It has heaps of scars where I have dragged it over rockl and other abrasive things... but the powder coating is fine in all the other areas. Not peeling, not chalking... I'm impressed!

The hull was manufactured by the Swift dinghy folks in Queensland. They seem to have their powder coating stuff together!

Jim
__________________
Jim and Ann s/v Insatiable II Back afloat, stooging around Moreton Bay for a while
Jim Cate is online now   Reply With Quote
Old 28-09-2016, 16:33   #27
Registered User
 
JerseyJoe's Avatar

Join Date: Sep 2014
Location: NJ/NY
Boat: 1978 Rafiki 35
Posts: 126
Images: 1
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by jbinbi View Post
any suggestions on the paint type/brand? I like this idea, simple for me to do! Inexpensive as well, and might work to prevent water from hitting the alum and corroding it.
I used two coats of Interlux Primecote after stripping, alumiprep and alodine prep, then two coats of Interlux Perfection. Looks very durable so far. It is not the cheapest paint, but cheaper and better than powdercoating which needs sandblasting usually for prep. I should only need to light sand after 5-6 years and add a third topcoat.
__________________
JerseyJoe is offline   Reply With Quote
Old 28-09-2016, 16:43   #28
CF Adviser
 
Pelagic's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Boat: Van Helleman Schooner 65ft StarGazer
Posts: 6,531
Re: Powder coat or anodize my solar frame

Quote:
Originally Posted by Jim Cate View Post
I suppose that this will sound kina old fashioned, but you could just paint the frame. With good undercoats and prep followed by some 2 pot polyurethane paint, it will look good and last quite a few years... and you can DiY!

Jim
Exactly what I did
__________________

__________________
Pelagic is offline   Reply With Quote
Reply

Tags
solar

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
LPU over old powder coat base Roy M Construction, Maintenance & Refit 3 17-10-2015 09:55
Flaking Powder Coat timbev Deck hardware: Rigging, Sails & Hoisting 2 10-10-2015 14:17
Powder coat paint? irwinsailor Construction, Maintenance & Refit 17 21-03-2014 16:41
Powder Coat Exhaust Elbow? Rhythm Engines and Propulsion Systems 8 08-05-2012 17:54
Powder Coat Question Matt sachs Construction, Maintenance & Refit 7 05-10-2011 09:24


Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 15:35.


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.