mr primer surfacer 1000

Thin it with Mr. Color leveling thinner. That works way better than generic lacq thinner. It needs a lot of thinning, around 1 part surfacer to 3 parts thinner 

Thank you for all the replys , some interesting stuff there . Will have to read that instruction sheet thouroughly Greg . Cheers

People spray Mr 1000 and like it once used to it ( not to mention you can buy it in spray cans), you can find youtube videos on that, proper thinning etc. But it could also be said that Mr 1200 or Mr 1500 might be a better choice ( a little less thinning required). Or some folks would say Tamiya.

In trying to prove that Mr Surfacer is not meant to be airbrushed, I ran across a link in an old thread here of Swanny's on the subject of how to use Mr Surfacer. Here is the link, and be aware it is a very old article.

And I guess I was wrong about airbrushing Mr Surfacer, as Swanny talks about doing so. (Can't resist saying that it's not going through my airbrush though, it is gritty and to me it would be akin to thinning fine sandblasting media to run through my a/b. Uh uh.)

He also mentioned thinning with lacquer thinner as OMG did above, discrediting my second comment which was gong to be that Mr Surfacer should be thinned with Mr Levelling Thinner.

I'm pretty much 0 for 2 today so far!

....but I do hope the you find the old article somehow helpful.

It's all lacquer based, so you thin it with lacquer thinner and clean the AB with lacquer thinner as well. If it's spitting then it sounds to me like you haven't thinned it enough (  assuming the AB is clean and all seals are good). You have to thin it quite a bit, you want it to drip pretty readily off the end of a mixing stick for instance. If it kind of pools up on the end of your mixing stick and eventually drips off then it's still too thick. I hate to use the old annalogy yet again but "think milk" like consistency......