Paint problems.

[Ed Schenck]

I have my lazarette seats home for repair and painting. After several sandings and finishing with 600 they seemed ready. I found some old Interlux Brightside on the shelf. I mix in a little Off-white with the White to dull the brightness, same as I did the decks and cabin many years ago.

Ouch, the results are like sandpaper! I used a good brush and it looked great going on. I finished with no runs. But it dried looking like I threw a very fine sand in the paint. Do you think it is because the paint was old? The temp in the closed garage was low 60's.

No point in an after picture because it would not show.

 

[SailH37]

I've not heard of that before, but it makes sense that it's old paint, I've used Brightside before with great results too, maybe the polymers clump up after a while? I'll be interested to hear what other's have to say.
Kb

 

[Ed Schenck]

How stupid was I not to try one lid?! No, I had to paint all four. I tried sanding one today and what a mess. Then I called the local chandleries and nobody had the paint. It's 90 miles to WM.

 

[rardiH36]

Hi Ed:

It has only been a few days since the unfortunate application? The volatiles in the paint probably haven't fully cured/evaporated/hardened. So why not use paint remover or brush on lacquer thinner -- in the evening when the temps are colder so the solvents will work before evaporating. Then blast away with your pressure washer...

 

[Ed Schenck]

Thanks Rardi. Worth a try. But then what?

 

[rardiH36]

Thanks Rardi. Worth a try. But then what?

Ed: I was just venturing a possible work-around alternative about your messy sanding comment. As to the bad brightside result, I can't recall a similar problem in my painting history -- except mixing dissimilar paints have occasionally resulted in a clumpy outcome. Any possibility that at some point one of your Brightside cans was used for a non-slip surface and got contaminated with some of interlux's anti-slip additive granules? Their granules are extremely fine and may not have been noticed in the liquid paint until after application?

What will you try next? If you have any Perfection left from your mast project, that's an option. The instructions say not to tint Perfection, but if its just to change a bright white to an off white, all it takes is a few drops of tube type brown tint to accomplish. I've done it with no bad outcome. My non-skid deck parts and the non-skid sections of my lazerrete seats were done with Mediterranean White Perfection with just a touch of black tint added to turn a very pale gray and then a few drops of brown tint remove the blueish hue that just black tint gave. Applied fine and still looks great four years on.

 

[rardiH36]

... Then blast away with your pressure washer...

Re-reading my suggestion last night ... maybe better to first scrape off the remover softened paint into a bag or box for less mess deposit into the waste.

But I'm sure you've gone the paint remover route more than a few before and will have your own method that works.

 

[Allan12210]

Ed,

The Interlux is a one component polyurethane which means it reacts with moisture to fully cure (crosslink) after application. If it is quite old and the can had been opened, then it probably has at least partially cured. That will cause gels to form that may be what you are seeing as the roughness. If the rest of the coating hasn't cured yet it might come off still with something stronger than paint thinner. Maybe acetone or MEK. It will probably be a messy job. Good Luck.

 

[Ed Schenck]

It is true Allan. Both cans had been opened, probably more than four years ago. It did seem to stir and go on well but ? ? ? I have painted with Brightside for years and never had results like this. The good news is that the paint remover seems to be working well. The bad news is that I can't uncover the boat and get the real work done until these lids are back on.

 

[suds]

I used brightside to paint my deck last year. According to the manufacture the shelf life is only good for 1 year after opening.

 

[DianaOfBurlington]

Just a reminder-- Defender in Connecticut sells Interlux at less than list price (unlike WM who are always at MSRP). Even with freight it might be better than 180 miles of gasoline usage. And they can ship same day and even 'slow' shipping can have it within any 2-3 days at your doorstep.

Just a thought.

I appreciate the head's-up about old Brightside though. Never woulda thunk it.

 

[rhythmsurfer]

Arghhh! Ed it is true. shelf life is about one year. The automotive industry follows this too.

 

[Ed Schenck]

Today I built four locker covers out of 1/4" plywood. Just the size and shape with a 3/4" strip at the top to hang them so they don't slide off. Now I can uncover the boat while taking my time to finish the locker covers. And I did order the paint from Defender. Shipping adds up but still quite a lot less than WM. I'm staying with Brightside because it has served me well on the rest of the boat. And yes I do know that 2-part is better.

 

[KennyH]

I just painted using some real old brightside with excellent results. I am guessing the added paint was the problem. Brighside I used had to be 10 years old or more. Good luck with your problem.

 

[KennyH]

Just a follow up: my paint had been used before a long time ago. Kept in unheated garage in North Carolina. Garage never gets below 50F as it is attached and insulated. I keep a check on temp. as my cat and dog live in the Garage. I understand if paint freezes it is worthless. Maybe that could have happened.

 

[Ed Schenck]

What is strange is that the paint stirred and went on so well. I watched it and it appeared to set up normally. Then after it dried I noticed it looked and felt like #60 sandpaper. I have the first coat on the two smaller aft locker covers using new paint. Not flawless but tolerable. After a good wet sanding and a second coat with a better brush it will have to be good enough. Else I will never get in the water! Tomorrow I'll try for two coats of bottom-paint. Gonna' test the new Pettit Hydrocoat in Lake Erie.

 

[Jim Legere]

Ed, I just did the water line and boot top stripes on mine with Brightsides at least 4-years old - other than it was really a bit on the cold side (I'm pressed for time as we spalsh Monday...), the paint worked fine. I always use the 333 brushing thinner as required and strain the paint through a disposable strainer. I always make sure that the lid seals well and I have been experimenting with giving the tin a shot of "Finish Preserver" (basically nitrogen) before tapping down the lid. I don't know if that makes any difference, but it can't hurt. Sorry about your bad luck.