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 Post subject: Paint question
PostPosted: 22 Aug 2016, 15:41 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
So I have a galvanized trailer and it's already painted. I want to paint the trailer to match the boat and also use it as a practice platform to get my painting skills right before I paint the boat. I got a wire wheel and sanding wheel for the grinder and self etching primer. What steps should I do to paint the trailer? ImageImage


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 Post subject: Paint question
PostPosted: 23 Aug 2016, 09:25 
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Joined: 02 Mar 2014, 19:52
Posts: 3191
Location: Central FLORIDA - The Sunshine State -
Just Read, Understand and Follow the directions on the
labels of any/all products you may use.

If the metal is truly galvanized, there are specific primers
for galvanized metal. Then paint with any good quality paint.
If the metal is just raw steel that has been previously primed
and painted, there are specific primers for that as well.
Personally, I like the Rust-Oleum Red Rusty Metal Primer
in the quart can......... Sticks to everything. Dries slow so it
can seep into cracks and crevices to form a good bond in tight places.

Simply remove all loose and flaking paint, wire brush and sand
any bare metal spots.

If you take steel down to bare metal, do not wait 2 or 3 days to
come back and prime it - try to plan your day accordingly - low humidity,
start early in the morning, do not paint anything after 5:00pm your local time
if it is to be left outside. Inside a garage, do not paint after 7:00pm.

Don't overthink it - it is a boat trailer - not your grandmothers dining room table.

again - Read, Understand and Follow the instructions on the label.



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http://www.tinboats.net/how-to-build-a-transom/
http://www.tinboats.net/varnish-vs-polyurethane/
All about Primers = http://www.tinboats.net/primer-and-paint-basics/
Paint, Thinners and Applications = http://www.paintingforpainters.com/

1959 Crestliner Commodore 14'
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1958 Johnson 35 RDE-19 Sea Horse
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 Post subject: Re: Paint question
PostPosted: 23 Aug 2016, 11:44 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
It's galvanized for sure. Some places are pitting. I got self etching primer for the trailer and for the boat. Both are being painted in Parker duck boat paint.


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 Post subject: Paint question
PostPosted: 24 Aug 2016, 21:15 

Joined: 24 Aug 2016, 11:18
Posts: 2
Hate to state the obvious and sound like a high school shop teacher (and you probably already know this anyway), but safety up as much as you can when you're using a wire wheel on a grinder. Those wire bristles turn into tiny little darts when they let go. I won't touch one without gloves and a full face shield, and I still end up picking them out of my clothes and forearms


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 Post subject: Re: Paint question
PostPosted: 25 Aug 2016, 06:39 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
PlungerPete wrote:
Hate to state the obvious and sound like a high school shop teacher (and you probably already know this anyway), but safety up as much as you can when you're using a wire wheel on a grinder. Those wire bristles turn into tiny little darts when they let go. I won't touch one without gloves and a full face shield, and I still end up picking them out of my clothes and forearms

Thanks coach! I wear the proper PPE. Here is some of the work I got done the other day. ImageImageImage


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 Post subject: Paint question
PostPosted: 25 Aug 2016, 08:26 
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Location: New England
... you primed the tire :lol:



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 Post subject: Paint question
PostPosted: 25 Aug 2016, 09:45 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
DaleH wrote:
... you primed the tire :lol:
haha yup I sure did, I'm bringing the wheels to work tomorrow so I can remove the old tires. I'm hoping to be done paint the boat trailer by Sunday and I can get some new rubber mounted when the paint cures. I'm painted the trailer Parker duck boat khaki to match the boat, the wheels are going to be painted the same color and the axles, hubs and leaf springs are going to be painted black.


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 Post subject: Re: Paint question
PostPosted: 05 Sep 2016, 12:26 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
Been making steady progress. Image


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 Post subject: Re: Paint question
PostPosted: 07 Sep 2016, 10:24 

Joined: 28 Jul 2016, 08:21
Posts: 35
Scott85 wrote:
It's galvanized for sure. Some places are pitting. I got self etching primer for the trailer and for the boat. Both are being painted in Parker duck boat paint.


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Pardon my ignorance, but how do you know it's galvanized for sure? Is there a way of telling?


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 Post subject: Re: Paint question
PostPosted: 07 Sep 2016, 10:39 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
Some of the trailer was unpainted.


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 Post subject: Paint question
PostPosted: 07 Sep 2016, 12:32 
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Joined: 02 Mar 2014, 19:52
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Location: Central FLORIDA - The Sunshine State -
lvhish486: I guess a rule of thumb concerning galvanized steel would be . . .

"hot dipped" galvanize
if it has a rough texture
light gray finish (not paint)
no rust in the welds

"electro-galvanize"
smooth to the touch
shiny smooth finish
maybe some rust in the welds

"galvanize paint" (that you find in auto stores in the rattle can)
IMHO - good for that warm fuzzy feeling you get after applying it.
it will rust in the joints and welds

dig around in the joints and welds to check for rust.
if rust is found, depending on how bad it is, may call
for more aggressive testing and treatment.

same comparison between hardware
such as hot dipped galvanized bolts
and electro-plated bolts.
a magnet will stick to both, so that is not a test.



_________________
http://www.tinboats.net/how-to-build-a-transom/
http://www.tinboats.net/varnish-vs-polyurethane/
All about Primers = http://www.tinboats.net/primer-and-paint-basics/
Paint, Thinners and Applications = http://www.paintingforpainters.com/

1959 Crestliner Commodore 14'
1959 Lone Star Malibu 14'
1958 Johnson 35 RDE-19 Sea Horse
1958 Johnson 35 RDS-20 Super Sea Horse
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 Post subject: Re: Paint question
PostPosted: 07 Sep 2016, 15:17 

Joined: 10 Aug 2015, 20:07
Posts: 167
Location: Virginia
Johnny wrote:
lvhish486: I guess a rule of thumb concerning galvanized steel would be . . .

"hot dipped" galvanize
if it has a rough texture
light gray finish (not paint)
no rust in the welds

"electro-galvanize"
smooth to the touch
shiny smooth finish
maybe some rust in the welds

"galvanize paint" (that you find in auto stores in the rattle can)
IMHO - good for that warm fuzzy feeling you get after applying it.
it will rust in the joints and welds

dig around in the joints and welds to check for rust.
if rust is found, depending on how bad it is, may call
for more aggressive testing and treatment.

same comparison between hardware
such as hot dipped galvanized bolts
and electro-plated bolts.
a magnet will stick to both, so that is not a test.
Johnny you are a wealth of knowledge thank you for all your post!


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