Priming Airbrushing a Primer? Vallejo brand

I used $5 can of Rustoleum and I just realized you were asking about airbrush in particular, so I'm not being helpful at all, sorry

I suspect the application would be so much nicer with an airbrush.

 

I have used Vallejo primer with an airbrush, and it gave me a lot of trouble. It kept clogging up my airbrush even though I diluted it with Vallejo thinner (water won't work). It takes forever to dry /harden enough - like weeks.
I ended up using it with a brush and painting very thin layers. The Vallejo grey color is also very light, I found it hard to see details on my sculpt.
(I would have used a different primer, but Harucasting mentioned Vallejo as one of the primers they accept.)

 

I don't mean to derail the conversation but I'm wondering what other primers Haru casting said they would accept? Thanks in advance.

 

I can't remember now what else it was exactly - have a look at Haru's blog
http://m.blog.naver.com/haru_resin

 

From Haru's terms and conditions:

4. Please send us your original sculpture applied lacquer primer such as Mr. surface or Tamiya in detail.
We had experienced an chemical reaction that happened in between of urethane primer such as Krylon and the transparent silicon we always use. but if you want to use the Krylon primer on your prototype, we will have to change to other typed silicon opaque which will make our work a little bit difficult. so we'd like to recommend you to put all kinds of primer except for urethane primer only. There are the other 3 kinds of primer that are lacquer primer such as Mr. surfacer, acrylic primer such as Vallejo and enamel primer such as ones produced by Tamiya. It's better to use these 3 kinds of primer!​

 

Wow thank you! I was looking through their website, and it was quite confusing, so this was a big help! I'll look into what I can use/get, thankfully I'm not at that stage yet so I have time. ^u^

 

When I sent some heads to be cast by Haru not that long ago, I sent along a sample of the primer I usually use to be tested. They replied that the primer worked with their silicon.

It has a Swedish branding and I don’t know if it has an international equivalent, but since there are a few Swedish members here and the primer is confirmed to work I thought I’d post it all the same.
The primer is: “Hagmans Carosol Rostskyddsgrund 1K”

It goes on thicker than Mr Surfacer, so if you know what you are doing it is much faster to work with and takes fewer layers to get a nice coverage. It sands well and you can get it very smooth by wet sanding with high grit sandpapers. With a melamine sponge you can then buff it all the way to a mirror finish if you like.
And if you live here it is a LOT cheaper than Mr Surfacer and easier to get, as you can find it in regular hardware stores.

 

Thank you for sharing this Lillim! I will go buy this! My mr Surfacer is taking forever to get a nice cover with. Do you know how long you usully have to wait before sanding on this?

 

I had the same problem with Mr Surfacer. The finish is nice, but it took forever to build up a nice coverage.

I think it depends on how thick you spray and humidity, but I think I waited about an hour or so, maybe a little more before sanding. You can always do a small test before you spray any important parts, just to get a feel for it.

 

Haha I have used like 3 cans already. But they changed the name on this primer os I have to ask like three persons in the shop before I dared to buy any. The content is the same they just wanted a catchy name they told me. So now it's called "Hagmans Etch primer"

I do like this primer so far, the only thing that bothers me is that, sometimes when you spray the nozzle is "spitting"out big drops of primer, it's a bit anoying when I only want to make a super thin coating on the parts and you get a blobb like that.
But I can buy this on my way home from work so I can't realy complain, and it's more muuuch cheeper then a can of Mr Surfacer if I count with the shipping cost and the amout of primer I get 400ml for 10 dollars, and Mr surfacer is 19 dollars for 170ml.

 

That is good to know! I had no idea that they had changed the name.

About the drops, I suppose you have already thought about it, but are you shaking the can sufficiently and do you clear the nozzle between uses?