International Paint Problems

Narcosis · 12 May 2006, 19:09

Just painted my newly made console (epoxy resin & glass cloth over marine ply) using International Pre-Kote(primer), and then 2 coats of International Brightside . 5 Days later it still has not set hard, my finger nail can dent or even rip into the surface. I am starting to panic

I followed all the drying and overcoat times on the tins.

Has anyone got any ideas about what to do? I don't want to strip and start again. Has anyone experience some thing simliar.

Here's hoping some one has a trick up their sleeve.

Thanx
D.

Nos4r2 · 12 May 2006, 19:22

From what I remember back in the dim distant past my dad painted his yacht with international and it took nearly 2 weeks to go fully hard. Don't quote me on that though-it WAS 25 years ago.

codprawn · 12 May 2006, 19:41

Heat and light can help - not too much of course!!! Try a 500w halogen lamp.

slimtim · 12 May 2006, 20:01

I'm just about to do the very same thing, I'll let you know if I have similar problems. Unfortunately I can't suggest anything other than phone international. Apparently their help line is excellent.

How did you get the glass smooth before painting? I'm having a lot of issues with my fairing compound (resin with glass bubbles) being "cloggy" and very difficult to sand down in places...have had to resort to gently scaping it off with a chisel!

Narcosis · 12 May 2006, 20:15

Quote:

Originally Posted by slimtim

I'm just about to do the very same thing, I'll let you know if I have similar problems. Unfortunately I can't suggest anything other than phone international. Apparently their help line is excellent.

Have already rang them, and they blamed my resin coating saying the resin had not set yet(Last resin coat about 4 days before painting) and that the resin was still sweating.

. Not sure about that nuget of info.

Quote:

Originally Posted by slimtim

How did you get the glass smooth before painting? I'm having a lot of issues with my fairing compound (resin with glass bubbles) being "cloggy" and very difficult to sand down in places...have had to resort to gently scaping it off with a chisel!

I had a quite a few tiny bubbles, but they sanded off (electric sander) quickly, but did you use a roler or brush to put resin coats on, and I also found that if I mixed to larger batches of resin the mix was getting thick so by the end of each resin lay the layer was holding the bubbles rather than releasing them. I used a smooth glass cloth with about 4 resin coats applied using a small short hair roller, and in most places the surface produced a mirror finish, but what c*cked every thing up was the slow drying time on the paint which seemed to attract loads of insects which left the prints when they went for a walk on my drying console. I did a quick test after on a piece that had been cut out of the console, but I did not use Pre-Kote, and its drying alot quicker I think.(2 coats of brightside)

Resining went like a dream, painting has been a nightmare.

Good luck with your painting, let us now how you get on.
Regards
D.

slimtim · 22 May 2006, 16:38

Narcosis,

Did you managed to get your brightside to go off?

I've got another 3-4 layers to go, but it seems to be going ok so far.

Tim

Narcosis · 22 May 2006, 19:20

Quote:

Originally Posted by slimtim

Narcosis,

Did you managed to get your brightside to go off?

I've got another 3-4 layers to go, but it seems to be going ok so far.

Tim

Its getting better, it has hardened up alot, in most places I can't scratch it. Watching and hoping but so far so good. I have taken advice and done some tests and found that the pre-kote on grp slows down the dry process. I might apply a resin coat later in the season just to give me the finish I want. (Resin with pigment and fine paste to remove the clearness)

I also think that I was covering with a tarp overnight whilst drying and that might have increased the damp/humidity.

Hope yours goes better.

Regards
D.

Tim M · 22 May 2006, 20:29

Did mine the same way recently: pre-kote and then Brightside. It does harden up over time; did mine about a month ago now:

http://www.rib.net/forum/attachment....chmentid=19034

Fredrick · 27 May 2006, 02:24

Hello...
I just finished using the interlux brightside primer "Pre-Kote"
after 60 hours of prep work on a hull. I filled and sanded small
blemishes with interlux "Watertite", and sanded the entire hull with
120 and 220 (and 320 for the "Watertite" areas). I then used the
Fiberglass Solvent Wash 202 to clean the hull. We primed it with
Interlux "Pre-Kote" (rolled and tipped). It has been 7 days now and
the primer is not dry. It is dry in spots (where it was thin) but any
places where it was thicker cannot be sanded. I can use my thumbnail
to take the primer off. I see others are having the same problem...so is the solution to wait till July...(I wish I was joking)

Thanks....Fred

Narcosis · 27 May 2006, 20:22

Quote:

Originally Posted by Fredrick

I see others are having the same problem...so is the solution to wait till July...(I wish I was joking)

Thanks....Fred

The pre-kote i did was over painted after about 3 hrs drying on one of the sunny days we've had. Two brightside coats where painted on, but it took a total 3 to 4 weeks before it stopped being scratch proof. It has now set very well, but it has slowed my project no end.

Next time, resin with colour pigment.

slimtim · 29 May 2006, 17:24

mine is done now. I can just about push my thumb nail into it but it is hard enough to sand and cut hole in so will go ahead and install it. To be honest, it might be better for cutting holes in if its very slightly soft...will stop it chipping.

Good luck fred.

Great looking console narcosis

daveh · 29 May 2006, 19:51

Unfortunately it is a problem with the sort of temperatures we have had. One bit of epoxy we did took 4 days to dry and it still hadn't completely gone off. The answer is a shed or tent and a heater.

Narcosis · 29 May 2006, 20:08

Quote:

Originally Posted by slimtim

Great looking console narcosis

Cheers Slimtim

Quote:

Originally Posted by daveh

Unfortunately it is a problem with the sort of temperatures we have had. One bit of epoxy we did took 4 days to dry and it still hadn't completely gone off. The answer is a shed or tent and a heater.

Sounds like the correct way to go, when reading International paint instructions it contains a table of drying times, and they change quickly for small temp changes. Of course all my painting and drying was outside undercover of a tarp, increased humidity, colder temps etc.

But the good news now is that it has finally gone off to a point I can't damage surface.(3 to 4 weeks)

Nasher · 03 June 2006, 23:46

Just to add my two pennies worth to this thread.

I decided to tidy up the transom on my Ocean, so scraped off all the old patchy anti-foul, filled some deep scratches and decided it would look a lot better in White than the original Yellow Gel coat.

After following this thread I took a risk and put International Brightside straight on to the gel coat after rubbing it down, rather than use the undercoat, as that appeared to lengthen the drying time.

The Brightside is like water, and the first coat looked like I'd painted it with low fat skimmed milk, so I knew I was in for a few coats.
After reading the drying times related to temperature on the can I put the first coat on Tuesday morning at about 9.00am, the temp that day reached a max of about 13 deg.

On Wed morning at about 07.30am the first coat was transparent, but quite hard with a lot of pressure required to mark it with a finger nail.
So on went another coat

Through the week I've added another coat each morning at about 07.30am after making sure the surface was moisture free from the night.

The last coat(5th) went on this morning, and having checked it about 6.00pm it was hard to the touch, but quite easily marked with a nail, even after the temp today hitting 26 deg.

Obviously its got warmer each day as the week has progressed, and I've been lucky to have no rain. I noticed that each coat appeared a little softer the next morning than the previous coat had, which is to be expected I suppose because of the build up of layers still 'going off'. But so far it looks good, and I'm expecting it to be hard in a couple of days.

Nasher.

Nasher · 07 June 2006, 16:59

An update.

Paint was hard enough to not scratch with my nail by Tuesday morning.

Nasher.

Narcosis · 07 June 2006, 20:58

Quote:

Originally Posted by Nasher

An update.

Paint was hard enough to not scratch with my nail by Tuesday morning.

Nasher.

Good news....!

Mine has set hard now, the paint that is, but hell, if International paint published there true drying times they'd be out of business, it may be nice to look at , it may be hard now, it may even be smooth, but its not good if your on a tight time scale......! Glad it's all over now. Suppose you are to Nasher....?

Nasher · 07 June 2006, 21:17

Sure am.

When I look at your experiance and that of Tim I think I got away with it lightly.

Basically mine took a week from the first coat to being hard, or 3 days from the last coat.

I didn't expect to need 5 coats, but then I didn't use the undercoat, which why I believe mine went hard quicker.

Nasher.