Spraying enamel over lacquer ?

hogfanfs

 

 

Tojo72

 

 

Don Stauffer

Lacquer over almost any paint is a problem- but that refers to real lacquer.  There are now acrylic lacquers, and I don't know whether those are okay over other paints.  Real lacquer thinner is really hot.

 

 

 

 

 

Hey Don,question,Your not talking about stuff like Testors Lacquer dull or gloss,I have sprayed them over everything with no problems.

 

 

 

 

Same here, I have never had a problem with Testors Lacquer dull or gloss either.

 

Testors clearcoats are exceptions.  As I have stated previously, I do not know why they work over enamels, but they do.  Testors enamels are my go-to, as are the clearcoats.  I am thankful for the compatibility even if I don't understand it.

BTW, I hear so frequently that Testors paints are out of business, or that they have dropped all enamels.  Neither is true- they have just repositioned the MM line and dropped the military colors.  Both the MM and the plain enamels are more general colors, though they are seeming to cater a little more with MM towards model cars.

Also, I often use glosscoat as a sealer to use something really hot, like non-testors lacquers, over the Testors enamels.

Used Tamiya lacquer primer. Dried 3-4 days. Sprayed Testor's enamel. Still tackey after 3 days. Was this too soon?

Miata95

You're very welcome. So far, I've sprayed two of their colors, RAF sky type S and RAF dark earth. Both sprayed beautifully. They remind me a lot of the original, pre-Testor Floquil, but with much less smell. I'm very pleased with them so far.

Tom

Tom,

Thanks for letting us know. 

It's good to know there is another option in a paint maunfacturer. I will eventually give Hataka a try. 

I sprayed a test panel last night, MM RAF dark green over Hataka dark earth. I sprayed it on heavy and wet and it worked just fine. No bubbling, crazing, or etchng at all. Thanks again to all  who responded.

Tom

Tojo72

 

 

Don Stauffer

Lacquer over almost any paint is a problem- but that refers to real lacquer.  There are now acrylic lacquers, and I don't know whether those are okay over other paints.  Real lacquer thinner is really hot.

 

 

 

 

 

Hey Don,question,Your not talking about stuff like Testors Lacquer dull or gloss,I have sprayed them over everything with no problems.

 

True, and I don't know why.  My speculation is that it dries so fast it doesn't have time to affect undercoats.  But that is speculation.  I often spray Dullcoat or Glosscoat over enamel, and have even done it over acrylics, but I try to avoid the latter unless it has dried for many days.

Tojo72

Hey Don,question,Your not talking about stuff like Testors Lacquer dull or gloss,I have sprayed them over everything with no problems.

I'm also curious.

Not only Testor's Dull and Glosscote, but also all the flavors of Alclad Klear (lacquers, not the aqua acrylic). Sprayed them all over just about everything.

What you say makes perfect sense, now you have me wondering why the above has NOT attacked my underlying paints.

Tojo72

 

 

Don Stauffer

Lacquer over almost any paint is a problem- but that refers to real lacquer.  There are now acrylic lacquers, and I don't know whether those are okay over other paints.  Real lacquer thinner is really hot.

 

 

 

 

 

Hey Don,question,Your not talking about stuff like Testors Lacquer dull or gloss,I have sprayed them over everything with no problems.

 

Same here, I have never had a problem with Testors Lacquer dull or gloss either.

Don Stauffer

Lacquer over almost any paint is a problem- but that refers to real lacquer.  There are now acrylic lacquers, and I don't know whether those are okay over other paints.  Real lacquer thinner is really hot.

 

 

Hey Don,question,Your not talking about stuff like Testors Lacquer dull or gloss,I have sprayed them over everything with no problems.

Thanks to all . I'm going to let it cure thoroughly and then give it a whirl. In the future, I'll stick with one or the other, but the MM couldn't be found at the time and the Hataka was readily available.

Thanks  Again,

Tom

It doesn't matter much what the lacquer is under the enamel top coat as long as the lacquer was well cured. As lacquer ( any paint) dries it shrinks. You want that process done. They have different cure rates/dry times.

On another note, lacquer over enamel can be a problem because lacquer can chemically attack the enamel causing wrinkles ( especially if the enamel is fairly fresh) , eaten paint etc, or just soft spots. Hot lacquer is tough stuff. Hobby lacquer less so. Enamel is mild by comparison. Hot lacquer will eat plastic parts if it doesn't dry quick enough, enamel won't for instance.

Lacquer over almost any paint is a problem- but that refers to real lacquer.  There are now acrylic lacquers, and I don't know whether those are okay over other paints.  Real lacquer thinner is really hot.

oldermodelguy

Enamel generally goes over well cured lacquer just fine.

 

I believe this is true as well. But, if you have some spare plastic, i'd do a small test just to be sure. 

Obviously I was hoping that's how it was. I'll let it cure a bit more and have at it. Thank you very much.

Thanks,

Tom

Enamel generally goes over well cured lacquer just fine.