DupliColor sealer not drying.

[NOBLNG]

This stuff just doesn’t seem to dry.? I shook the can well, decanted and sprayed it through the airbrush. Then put it in the dehydrator for over 12 hours. It is still tacky enough that it will stick to my hand. The first coat of filler primer dried nicely, but this stuff….?

 

Edited October 30, 2024 by NOBLNG
Change sandable to filler

[mr moto]

I don't know the problem but something is very wrong. That's been my main primer for many years and it dries in 15 minutes not using a dehydrator. It should also be 100% compatible with the sandable primer. All I can think of is that it's just defective - a bad can.

[Dave Van]

No help here....sorry. In 20 years+ never had that issue. Gotta be a bad batch of paint. 

[johnyrotten]

I would say it's either really old, or defective. 12 hours in the dehydrator you would think would off gas that enough to do the trick.  One question for you, did it sit for an extended period? I've had cans act similar after sitting a long time

[Muncie]

not good...

the problem may be in the decanting or spraying thru an airbrush. thinner? try spraying from the can and see if it does the same thing.

[NOBLNG]

16 minutes ago, johnyrotten said:

I would say it's either really old, or defective. 12 hours in the dehydrator you would think would off gas that enough to do the trick.  One question for you, did it sit for an extended period? I've had cans act similar after sitting a long time

I just bought the can this spring…maybe 6 months ago? It is kept in the garage where the temperature is currently 58.6F. I did spray it once before with the same results. I figured I’d try again after shaking it more and letting it dry longer, but…

[NOBLNG]

Just now, Muncie said:

not good...

the problem may be in the decanting or spraying thru an airbrush. thinner? try spraying from the can and see if it does the same thing.

I just sprayed 4 spoons from the can after a good long shaking. We’ll see what happens.

[Mark]

It may have been purchased six months ago, but how long has it been sitting in a warehouse or on the store shelf?

The typical 60 second or so shake might not be enough.  It's not thoroughly shaken until the agitator ball slides freely around the base of the can when it is lightly moved around.  I'd make sure it is ready to go the day before, then give it the 60 second shake just before using.

[StevenGuthmiller]

Probably just a bad batch.

It happens.

I use the exact same primer on pretty much every project, and I've never had any issues with it.

I have however had the same sort of issues with the "Perfect Match" clear a couple of times, but even that hardens up eventually.

I had the "tacky" issue with the clear on my '69 Coronet, but I was still able to get it cut and polished, and now it's just as hard as any of my other models.

 

 

 

 

 

 

Steve

[NOBLNG]

26 minutes ago, NOBLNG said:

I just sprayed 4 spoons from the can after a good long shaking. We’ll see what happens.

Okaaay. The spoons seem to be dry.? So possibly the decanting may cause an issue? I will try decanting a fresh batch and do some more spoons. It was actually the filler primer (not sandable) that I used underneath it, but that was dry and shouldn’t be an issue I would think.

[Dave G.]

Decanting and airbrushing shouldn't be an issue, unless you added some incorrect thinner to it. I could see that causing some sort of issue.

[johnyrotten]

50 minutes ago, NOBLNG said:

I just sprayed 4 spoons from the can after a good long shaking. We’ll see what happens.

I've had can that sat for long stretches act that way, and new ones as well. One thing I always do with any rattle can is to warm it up in a container of hot water. Raises the pressure in the can, and thins the product a bit. Always gives me better results. 

Edited October 30, 2024 by johnyrotten

[johnyrotten]

Sorry about the previous post, I didn't realize you decanted it.

[stitchdup]

I'm losing my faith in duplicolour primers. The last 2 tins of filler primer and one tin of red primer sprayed nothing but fibres similar looking to flocking even after shaking for much longer. i'm using stuff from bodyshops now called proline, much much better but a little more cost

[NOBLNG]

42 minutes ago, Dave G. said:

Decanting and airbrushing shouldn't be an issue, unless you added some incorrect thinner to it. I could see that causing some sort of issue.

Nothing added to it. But I think the decanting process may be the issue. I used a clean bottle and sprayed it through a clean plastic straw. This is what it looks like immediately. This time I stirred the contents before attaching the airbrush. The spoons seem dry already (10 minutes). I did not notice the separation the first time around and did not stir it to reconstitute the product.? No such issue with their filler primer.

Edited October 30, 2024 by NOBLNG

[NOBLNG]

6 minutes ago, stitchdup said:

I'm losing my faith in duplicolour primers. The last 2 tins of filler primer and one tin of red primer sprayed nothing but fibres similar looking to flocking even after shaking for much longer. i'm using stuff from bodyshops now called proline, much much better but a little more cost

I had that furry issue with two cans of white primer. I returned them for a refund.

[Dave G.]

16 minutes ago, NOBLNG said:

I think the decanting process may be the issue. I used a clean bottle and sprayed it through a clean plastic straw. This is what it looks like immediately. This time I stirred the contents before attaching the airbrush. The spoons seem dry already (10 minutes). I did not notice the separation the first time around and did not stir it to reconstitute the product.? No such issue with their filler primer.

Hmmm, revolting !

[StevenGuthmiller]

I’ve never decanted any of the Duplicolor primers.

Maybe the decanting is the issue.

 

 

Steve

[Dave G.]

IDK, I just use Mr Surfacer for lacquers and Stynylrez for acrylics, and Enamels may get either. I'm very pleased, never an issue. And Mr Surfacer  is a very fine filmed primer, so the coats don't get fat. I like it that way. I'm from the if it isn't broken don't fix it camp. But then too, I've never used Duplicolor on models, which leads back to my camp theory.

I do see several complaints about Duplicolor on the forum, at least fairly regularly.

Edited October 30, 2024 by Dave G.

[Mark]

If you are going to decant it anyway, why not just start with a can (not a spray can, just a pint or quart) of sealer?

[NOBLNG]

6 hours ago, Mark said:

If you are going to decant it anyway, why not just start with a can (not a spray can, just a pint or quart) of sealer?

I wasn’t aware that it was available other than aerosol. One thing I sure do like about it, is the ease of stripping a botched paint job…and I have more of those than I care to admit.?
I actually use the Tamiya primer in the square bottles. Just thin it a bit with lacquer thinner….but it doesn’t strip easy and that is the only reason I am trying to switch to Dupli-Color.

Edited October 31, 2024 by NOBLNG

[Mark]

I don't know whether or not Duplicolor offers non-spray sealer, but automotive paint companies do.  The smallest available amount is probably a quart...even if you split the cost with a couple of guys, you'll still have more than you will need.  Cost will be way less than the spray cans too.

[rattle can man]

I never had a problem with it not drying. but I did have a can that let the orange from the plastic bleed through no matter how many coats applied. if t is sealer, I would think it shouldn't bleed through.

[stitchdup]

4 minutes ago, rattle can man said:

I never had a problem with it not drying. but I did have a can that let the orange from the plastic bleed through no matter how many coats applied. if t is sealer, I would think it shouldn't bleed through.

the sealer wont always stop the orange or red getting through (especially on the revell t2 vw buses), but silver paint works every time.