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Matt spray leaves marksMatt spray leaves marks

Hello. This is just about using humbrol matt acrylic varnish spray.

What happened yesterday was I had completely finished the body to a custom figure (a figure kind of in the style of a nendoroid, so not a scale). I sprayed the matt spray on to the body and it looked fine, everything was how I wanted it. But then it came to the head. I had just finish painting it and I sprayed it, the front piece of the hair was perfect but the face started to wrickle. I had to remove all the paint on the face and start over.

Today I finished the face but instead of risking it again I sprayed the back of the hair with the spray instead. But the same thing happened. I'm not as bothered by it due to it being on the back so ive tried getting rid of a layer of the paint and repaint it, hoping it'll be decent. But I don't know why this happening. Am I spraying too much of it? Or is it because there's too much paint? I have no idea and I can't find anything about it online.

It really sucks because from the front the hair and body are matt but the face is slightly shiny -.-

I've been using acrylic paints and I also have a matt enamel varnish spray. But as the name says its for enamel paint, however I have used it before as I didn't realise this (and the shop had sold out of the acrylic spray). The finish was more satin then matt honestly.

But does anyone know why the spray sometimes works but then sometimes ruins it? ;-;
674 hits • 9 comments

Comments9

1pt
ponnie ~Donyatsu Huntress~
This happens a lot with water soluble paints and spray can varnish.
(I got an airbrush to avoid that, honestly)

Here's what you can do: spray from recommended distance VEEEEERY lightly, a misty coat. If the part is round, spray just one side. Let it dry a few minutes. Repeat from the other side. Let it dry. Then spray a regular thin coat. Let it dry. Apply more coats if necessary.

The idea is to add a thin quick-drying layer to protect fragile paint from too much aggressive solvent at once. Then spray as usual because your paint is already under protection!
4 months ago
1pt
dollbyn (4 months ago) #31103113Please be really careful with spray sealants. They can cause some serious harm if you breathe them in. I don't want to scare you, but years ago someone came forward in the ball jointed doll community explaining how sealants had given them permanent and alarming health issues. I would recommend looking into some safe practices when using spray sealants. It may be inconvenient, but your health is more important than cute pieces of plastic.
I wish I could be more help to your current issue, but my custom work knowledge is based in dolls, so not sure it would be good info. Best of luck!


Ceci (4 months ago) #31103124Spraying that kind of stuff inside without proper ventilation can cause serious harm to your health! I would apply the matt finish spray outside.

I'll keep that I'm mind, it's kinda hard to do anything outside when it's raining 90% of the time XD but ill try to be more careful. I don't know if I'm kinda lucky in a way that I don't have much free time, so I'm only able to work on this once every month maybe (I was really lucky this week that I got 2 days off in a row XD but one of those I did have to complete some written uni work -.-). And normally I would do it in the afternoon with the window open so by time the night comes my room should be ventilated (but I don't know if this actually helps).

But thank you both for worrying ~
4 months ago
2pt
AshuriiKareshi (4 months ago) #31103071I only bought the can recently and this is the first Tom I've used it :( it could be the conditions as it's always cold in my room (the only room in the house where the heating doesn't work >>) but i just found it odd as it works on areas but not others. Like the back of the hair for example, sprayed it over the whole area but only one part of it started to wrinkle, not the whole thing :(
Spraying that kind of stuff inside without proper ventilation can cause serious harm to your health! I would apply the matt finish spray outside.
4 months ago
1pt
AshuriiKareshi (4 months ago) #31103108So the paint wasn't completely dry? That could be it because I've noticed that sometimes the paint looks dry but ends up being half way between wet and dry >< (and I mayyyyyy have been rushing it)
Seen as I've finished painting it all and waiting for it to dry I can add the spray in a few days (I'm unable to add it soon as I'm leaving for a trip early tomorrow). Atleast then I'll know it'll definitely be completely dry.
Thank you so much for your help ^^

I always let water-based acrylics dry for a week before applying matte spray. For the stuff with isopropanol in it, I usually let it dry for at least a day (but usually 3). It's probably overkill, but a little bit of waiting is better than having to strip and repaint.

PS good call on not using the enamel spray. Enamels usually don't do well on top of acrylics. They'll often partially dissolve the acrylic paint, and you'll get a crackle effect as well.
4 months ago
2pt
AshuriiKareshi (4 months ago) #31103071I only bought the can recently and this is the first Tom I've used it :( it could be the conditions as it's always cold in my room (the only room in the house where the heating doesn't work >>) but i just found it odd as it works on areas but not others. Like the back of the hair for example, sprayed it over the whole area but only one part of it started to wrinkle, not the whole thing :(
Please be really careful with spray sealants. They can cause some serious harm if you breathe them in. I don't want to scare you, but years ago someone came forward in the ball jointed doll community explaining how sealants had given them permanent and alarming health issues. I would recommend looking into some safe practices when using spray sealants. It may be inconvenient, but your health is more important than cute pieces of plastic.

I wish I could be more help to your current issue, but my custom work knowledge is based in dolls, so not sure it would be good info. Best of luck!
4 months ago
1pt
yaiba (4 months ago) #31103101I'm not sure what type of paint you're using, but if I envision what you are describing correctly, it sounds to me like the paint was not completely cured when you applied the matte spray.
The top coat is essentially drying faster than the bottom paint layer, and pulls it away from the surface, leaving a crackle effect.


So the paint wasn't completely dry? That could be it because I've noticed that sometimes the paint looks dry but ends up being half way between wet and dry >< (and I mayyyyyy have been rushing it)

Seen as I've finished painting it all and waiting for it to dry I can add the spray in a few days (I'm unable to add it soon as I'm leaving for a trip early tomorrow). Atleast then I'll know it'll definitely be completely dry.

Thank you so much for your help ^^
4 months ago
1pt
I'm not sure what type of paint you're using, but if I envision what you are describing correctly, it sounds to me like the paint was not completely cured when you applied the matte spray.

The top coat is essentially drying faster than the bottom paint layer, and pulls it away from the surface, leaving a crackle effect.
4 months ago
1pt
ilasja (4 months ago) #31103066Could be the weather conditions, I use MSC on my doll customs and in the cold or in high humidity it tends not to work as well, leaving white bits or leaving the vinyl shiny and slippery rather than matte. Also some products like that have expiration dates after opening

I only bought the can recently and this is the first Tom I've used it :( it could be the conditions as it's always cold in my room (the only room in the house where the heating doesn't work >>) but i just found it odd as it works on areas but not others. Like the back of the hair for example, sprayed it over the whole area but only one part of it started to wrinkle, not the whole thing :(
4 months ago
1pt
Could be the weather conditions, I use MSC on my doll customs and in the cold or in high humidity it tends not to work as well, leaving white bits or leaving the vinyl shiny and slippery rather than matte. Also some products like that have expiration dates after opening
4 months ago
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