Can I paint on mr Surfacer?

Lemendick, usually people need a certain color for their dolls so they paint them over but if you are OK with a color of Mr. Surfacer (it's grey, right?) you may paint on it with acrylic paints. If you want to do a blushing with pastels it's better to cover the doll with Mr. Super Clear or similar flat varnishes so the surface has more 'tooth' to hold the pastels.

 

Thanks for this question and the answer, they're helping me a lot, too, for my own BJD project which I'm planning to start soon

With this info in mind, I guess I'll sculpt my doll, spray it with Mr Surfacer, do a basic paint with acrylics, use Mr. Super Clear for a base for blushing and stuff with pastels and colored pencils. Hope it'll go well ^^

 

mr surfacer is designed for painting on. It'll take acrylic just fine. Spraying dolls with Mr. Super Clear (MSC) is to first provide a UV barrier (UV causes yellowing in PU resin), and secondly to create a tooth (PU resin is not designed for painting on). A layer of MSC also makes wiping away pastel and acrylics easier. So you can spray MSC on top of surfacer if you want, but it is really not necessary.

There is also a white version of mr surfacer. You can tint that lightly, I think. But most people probably spray a light coat of skin color over surfacer with an airbrush...or something? (You should look into the garage kits hobby for more info on this)

 

Be careful, if you use MSC over Mr. Surfacer, the primer will get wet again. I don't know how the paint layer will hold, but if you touch the primer just a little bit, you can start all over again. (it's how I messed up priming my doll a couple of times... you know, because learning from your mistakes is too rational ;p)

 

Seconding silk, if MSC is applied over any paint or varnish it dissolves a layer below so the detail should stay for... mmm... let's say 15 or more minutes to completely dry out. I tried MSC over nitro based paints or over acrylic paints, and the rules are always the same.

Meuia, yes, your plan should work great. A layer of primer -> a layer of acrylic paint -> a layer of sealant -> more paint, pastels or whatever if needed -> more sealant. This gives a good results.
I used acrylic flat white primer for cars -> a layer of acrylic flat sealant for cars, and then I did blushing with pastels and painted whatever I needed on two of my dolls, and it worked out nicely.

Also, the paints and varnishes should be compatible: all acrylic and nitro paints and varnishes are. Alkyd varnishes (floor varnish as example) can work over acrylic and nitro paints but it's better to test them first. Synthetic enamels are a big no.