Can You Spray Lacquer Over Enamel
Can you spray lacquer over enamel. The hotter solvents in lacquer will soften the enamel and cause crazing tiny cracks. Lacquer paints dry to a hard shell leaving a very thin paint film. You want that process done.
For a matt finish I use dull-cote as desribed in the previous post. Consequently is spray paint lacquer or enamel. The hotter solvents in lacquer will soften the enamel and cause crazing.
Then u can proceed with the lacquer paint as normal coats. You can spray enamel over lacquer after it has dried or gassed out but you cant spray lacquer over enamel. Enamel paints use a process that allows polymers in the paint to set and bond together so when the paint hardens it will not soften again.
Acrylic lacquer can be clear coated then the 2k clear can be shot. One may also ask do you need primer for lacquer. It is recommended to use a Rustoleum clear coat for optimal results since they are also an enamel blend.
Lacquer can be over-coated with other lacquer paints or enamels and acrylics. The lacquer will eat the oil in enamel. Enamel uses thinner or white spirits and lacquer paint uses lacquer thinner.
Some of the clear coats used over enamel include Rustoleum and Spray Max 2k. Clear coat can be applied over most Rustoleum enamel paint. You can Spray Lacquer over paint however it requires care and caution otherwise you would be ruining your paint job that you put so much time and effort into.
As lacquer any paint dries it shrinks. If I want a gloss-cote and this is very rare for what I build I use Future it works very well.
In short.
The hotter solvents in lacquer will soften the enamel and cause crazing. In general lacquer over enamel is a no-no but Testors lacquer is very mild and may be perfectly okay over enamel. If you used enamel to paint the model use enamel to clear coat. For a matt finish I use dull-cote as desribed in the previous post. Yes its true that enamel can be sprayed on top of lacquer and SOME lacquers are safe over enamelsbut why in the world would you purposely get into this situation in the first place. The hotter solvents in lacquer will soften the enamel and cause crazing tiny cracks. You can use something like Duplicolor auto primer or any of the Tamiya flat whites. Enamel paints use a process that allows polymers in the paint to set and bond together so when the paint hardens it will not soften again. They have different cure ratesdry times.
A topcoat can ensure a longer lifespan of the Enamel paint but is generally not necessary. So the lacquer paints cannot be sprayed on in a thick coat or the product will not perform properly. Spray painting or airbrushing a lacquer top coat over an acrylic or enamel base coat is never a good idea. Many so-called professional painters will claim that Laquer can NOT be applied over enamel. Enamel paints use a process that allows polymers in the paint to set and bond together so when the paint hardens it will not soften again. But a few other modellers use enamel or lacquer gloss-cotes with good success. Spray the first 3 or 4 coats of lacquer very lightly allowing to dry between coats until none of the original enamel shows thru.
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