Zinc Chromate question for those who have painted

[lakelover]

For anyone who has stripped to the bare aluminum and sprayed with zinc chromate primer....how many cans did you have to use?

From what I've read, you just need a very light coat. I'm getting ready to order my paint supplies.

Thanks.

 

[sasto]

Re: Zinc Chromate question for those who have painted

yes, light coat.....Watch out, use respirator please.

 

[Woodonglass]

Re: Zinc Chromate question for those who have painted

Which self etching primer are you going to use???

 

[lakelover]

Re: Zinc Chromate question for those who have painted

Which self etching primer are you going to use???

I was figuring on the Moeller green:
http://www.iboats.com/Zinc-Chromate-Primer-Green-Moeller/dm/*******.571965080--**********.124333055--view_id.373394

Just trying to figure how much to get anticipating fully stripping the hull (15').

 

[Bob_VT]

Re: Zinc Chromate question for those who have painted

Probably 4 cans will do the entire exterior (if you need more you just pick up another). They sell it local to us which would save significantly on Hazmat shipping.

 

[Bob_VT]

Re: Zinc Chromate question for those who have painted

BTW follow these instructions courtesy of YD http://forums.iboats.com/showthread.php?t=457159

AND in Albany there are a few chemical supplier's...... check the yellow pages.

 

[lakelover]

Re: Zinc Chromate question for those who have painted

Yup, just using that link to be clear. For that it will probably be easier to pick it up locally.

Just a crazy thought...is it too early to order my topside paint....probably won't get to painting until May or June. I don't really know what the usual shelf life is. Trying to think of things to do that will speed up my progress when the weather turns.

Thanks for the tips.

 

[Bob_VT]

Re: Zinc Chromate question for those who have painted

The only concern I would have about "early" topside ordering is this...... check the color when you get it so IF it needs to be returned.... do it right away. Storing that stuff indoors (not in the unheated garage but, really indoors) should keep it just fine. Shelf life is quite long on sealed paint cans

 

[Yacht Dr.]

Re: Zinc Chromate question for those who have painted

What topside paint are you going to be using ?

I normally put on more than a dusting of ZC so I can reprep that for topcoating...

YD.

 

[lakelover]

Re: Zinc Chromate question for those who have painted

I decided to go with the Pettit Easypoxy burgundy all around.

I emailed Pettit and they said to use ZC primer (they recommended their 6455/044), then Pettit 6627 Tie Coat primer, then the Easypoxy.

 

[Yacht Dr.]

Re: Zinc Chromate question for those who have painted

I decided to go with the Pettit Easypoxy burgundy all around.

I emailed Pettit and they said to use ZC primer (they recommended their 6455/044), then Pettit 6627 Tie Coat primer, then the Easypoxy.

Good luck with that stuff...

YD.

PS. No mention of alumiprep or alodine first from pettit ??

 

[lakelover]

Re: Zinc Chromate question for those who have painted

No mention made of those.

 

[ezmobee]

Re: Zinc Chromate question for those who have painted

I'd go Rusto before I went Easypoxy. I couldn't hate that stuff more if I tried.

 

[lakelover]

Re: Zinc Chromate question for those who have painted

Did you follow their prep recommendations?

I just got this back in an email from Pettit: (for roll & tip of bare aluminum):

You will need to sand the aluminum with 80 grit
and apply a coat of the 6455/044 metal primer. The apply the Easypoxy
undercoater followed by Easypoxy.


80 grit sounds kind of aggressive to me though.

I have to admit I've been swayed by this video on youtube

http://www.youtube.com/watch?v=wGCgZfuPb1A&feature=player_embedded

and the user reviews of Pettit on the Jamestown Distributors website.

 

[ezmobee]

Re: Zinc Chromate question for those who have painted

Well I did not prep correctly. I'm not blaming the paint for my paint falling off issue (although I watched a friggin' video that specifically said I could do what I did). That's why I am doing my best to refrain from posting on every person's thread who is using it telling them it's crap. HOWEVER! The paint on my boat, in addition to the adhesion issue, is still fairly soft and VERY easily damaged. Local iboater and friend of mine Tim Fives used it on his transom as well. Same deal. Easily scratched with a fingernail. That is why, in my opinion, you'd be better off just going with Rustoleum or stepping up to a 2 part paint.

But that's all it is.....my opinion based on 1.5 cases of anecdotal evidence. I'd like to see some long term test results especially on a tinny. Mine was thoroughly ruined after 1 hour long outing.

 

[Yacht Dr.]

Re: Zinc Chromate question for those who have painted

Funny..I can blow 3 gallons of Good 2 part paint in 4 hours ( with tack etc ) of good high dollar paint on a 50 foot Yacht..and it takes the DIY's out there wanting the cheap way out spending Weeks just to sand/prep/reprep..retack sand/omg it sucks now just sand again and buff after 2 months of waiting for the expectation that you wanted in the first place ! lol..

You get what you pay for..

Yes .. when you call up for 3 qts of Good stuff your heart sinks a bit....when you call up and the price is good..your heart will sink if you dont have Any expectations of outcome..

Cheap= not Pro ( Just not the finish but the labor time to get it there )
Pro= Get it there with moderate expectation (without pro capabilities)
Hire = expectations met or beyond ..

DIY..first timers will not get that glassy glossy finish you Think your gonna get out of a can...period.

Unless you Know what your prep is...prep prep...prep..then last call sand and buff .. next year you sand and buff .

YD.

 

[lakelover]

Re: Zinc Chromate question for those who have painted

Funny..I can blow 3 gallons of Good 2 part paint in 4 hours ( with tack etc ) of good high dollar paint on a 50 foot Yacht..and it takes the DIY's out there wanting the cheap way out spending Weeks just to sand/prep/reprep..retack sand/omg it sucks now just sand again and buff after 2 months of waiting for the expectation that you wanted in the first place ! lol..

You get what you pay for..

Yes .. when you call up for 3 qts of Good stuff your heart sinks a bit....when you call up and the price is good..your heart will sink if you dont have Any expectations of outcome..

Cheap= not Pro ( Just not the finish but the labor time to get it there )
Pro= Get it there with moderate expectation (without pro capabilities)
Hire = expectations met or beyond ..

DIY..first timers will not get that glassy glossy finish you Think your gonna get out of a can...period.

Unless you Know what your prep is...prep prep...prep..then last call sand and buff .. next year you sand and buff .

YD.

That is my point. I want to get what I pay for and meet my expectations. I have a limited budget and I'm trying to get the most and best quality I can out of the least money I feel I can spend. That's why I'm trying to get my chosen method down right the first time. I do want the cheap way out. I have more time than money! But you're right, I don't want to spend that valuable time doing it over!

I don't have much in the way of expectations really. My main desires are durability and decent looks. I don't really care if the finish is glassy glossy as long as it's consistent. My goal is "good enough" (for me).

I don't think Pettit mentioned alumiprep or alodine, because from what I've been able to gather, that's for the pros and the Pettit one part is an amateur DIY system.

By gathering and using proper preparation and application steps from the mfg., I'm hoping to meet my expectations. I'm feeling my way through the whole project!

 

[jasoutside]

Re: Zinc Chromate question for those who have painted

My opinion...

I am headed the Rustoleum route. I'll spend roughly the same amount of time prepping my rig as any of the other tin can guys around here on their rebuild projects. However, I'll spend roughly 1/2 as much $$ as those same guys if they are buying any of the paints besides Rustoleum (Interlux, Pettit, etc.). For us homestyle boat builders that can really add up. Especially on a big Islander, not so bad with a little Jet

Now, for a fella who really wants the best - you know, glossy, beautiful, mirror finish, top notch, hard as a rock, sorta stuff - taking your rig over to the doctor of yachts is really the way to go. Course you'll pay for it too! But, you got what you want, eh!

To have the best and have it at Rusto in the driveway prices? Not so much.

For me and my budget build, I'll be satisfied with what happens. I think my boat will have an OK finish. It will look fine from 50 yards away at 30 knots and the fish won't give it a second thought as they are being tossed in the ice box.

Like I said, just my opinion.

Cheers!

 

[geedubcpa]

Re: Zinc Chromate question for those who have painted

For anyone who has stripped to the bare aluminum and sprayed with zinc chromate primer....how many cans did you have to use?

From what I've read, you just need a very light coat. I'm getting ready to order my paint supplies.

Thanks.

3-4 cans if the entire boat is bare will probably do the trick - I think you can buy this locally like at NAPA or other auto parts stores.

 

[lakelover]

Re: Zinc Chromate question for those who have painted

3-4 cans if the entire boat is bare will probably do the trick

Thanks, that seems to be the amount generally recommended. I decided to go with the paint mfr's etching ZC primer & roll it on. It should be arriving today. So I can sit and look at it for another 2 or 3 months until it's warm enough to get back working on the boat!