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Primer woes

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  • Member since
    December, 2017
Primer woes
Posted by KyleBragger on Friday, April 06, 2018 8:56 PM

Curious what folks here are using for primer. I love Mr Surfacer products (like the 1500 finishing) but lately have been testing out acrylics again: Mig one shot (which I think is Stynlrez), Stynlrez itself, and some of the AK primers. 

I really don’t want to keep shooting lacquer primer due to the smell and fumes and all that, but have had terrible luck with the above mentioned acrylics. 

The one shot clogs in seconds even shot at recommended psi, 0.5mm needle from a spotless airbrush. Also had issues backflushing and with tip dry. The AK I’ve only ever gotten to show up as really bad orange peel, again even at completely recommended settings. 

Fwiw I also spent two evenings with plasticard just testing different thinning ratios, pressure, distance etc with minimal success.

So... anyone had better luck?

  • Member since
    May, 2013
  • From: Indiana, USA
Posted by Greg on Saturday, April 07, 2018 12:49 PM

I don't know anything about Mig One-shot. I'm curious what makes you believe it is Stynylrez?

I have had great results results with Stynylrez grey and white. I get some clogging with black.

Are you by chance shooting black, what ever it is?

-Greg

  • Member since
    December, 2017
Posted by KyleBragger on Saturday, April 07, 2018 12:50 PM

Hey Greg,

Yep - it's the black one.

I recall reading that in a few places and I think I'd asked MIG once and they said it was a formulation from Badger.

  • Member since
    May, 2013
  • From: Indiana, USA
Posted by Greg on Saturday, April 07, 2018 4:02 PM

Hmmm. Thanks for the input on the One Shot.

I'd like to add that the first couple times I sprayed Stynylrez black I had no problems. Then I used the grey and white for a year and wondered about the folks reporting trouble with the black. Figured they must be doing something wrong.

Then recently I've had to spray quite a bit of black and the trouble started.

I'm not done spraying black so I might try filtering the black primer through cheesecloth or whatever it is folk used. I always swore I'd never resort to that. Famous last words and all....

Wish I could help more.

-Greg

  • Member since
    July, 2004
  • From: Sunny So. Cal... The OC
Posted by stikpusher on Saturday, April 07, 2018 5:57 PM

I have had best results with Mr Surfacer and Tamiya’s Liquid Surface Primers, white & gray. I thin them all with lacquer thinner. After those choices, my next preference is for Humbrol enamel primer. 

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    May, 2013
  • From: Indiana, USA
Posted by Greg on Sunday, April 08, 2018 10:35 AM

Just to comment on Stikpusher's post, I find both of the primers he mentioned to be as close to perfect as one can get.

The only reason I don't use them more often is I spray inside and don't have a ventilation system, otherwise they'd be all I'd use.

-Greg

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Sunday, April 08, 2018 11:45 AM

I feel for you.  Many years ago I learned about Krylon Sandable Primer, from the old Newsgroup rec.models.scale, before I joined the finescale forums. It became my goto primer.  But then, they dropped that product and introduced several new primers, non of them that good anymore.

I have tried several Rustoleum primers and now use their metal etching primer.  However, I bought Tamiya's primer in spray can, and am giving that a good test. Expensive, though. Much smaller can at more than twice the price.

I have also used a Duplicolor (spray can auto touchup paint) primer, and it works pretty well.

Don Stauffer in Minnesota

  • Member since
    December, 2017
Posted by KyleBragger on Monday, April 09, 2018 2:42 PM

Thanks for all the replies everyone.

Must have something to do with the black stynylrez/mig one shot specifically. And I, too, initially didn't have any issue. Eventually clogged an airbrush with it.

Going to probably end up just going back to Mr Surfacer products, despite the lacquer...

 

  • Member since
    February, 2012
Posted by Liegghio on Tuesday, April 10, 2018 1:50 PM

I just started experimenting with the Vallejo Air primer, specifically the black one. It went on with no problems and it’s odor free. The finish is kind of satiny, but it can be buffed. Today I will start masking and painting a 1/320 Adademy B52 in Operation Linebacker camo. I’ll be using Tamiya acrylic for one camo color, and Model Master enamels for the others. That should give me some initial indication of how it holds up to different paint formulations, and how it sticks under masking.

So far the Alclad primers have been my favorites since the demise of Floquil, because they work well, and unlike  the Gunze and Tamiya ones I don’t have to thin them.  It will nice though if I can find a water based one that works well.

  • Member since
    February, 2012
Posted by Liegghio on Monday, April 30, 2018 11:28 AM

OK, completed the plane and the Vallejo primer worked great. It airbrushed easily to a matt finish, but I found you could "BUFF" it (heh) with a cotton ball to a semi-gloss finish. It dried  to a very thin layer so no details were obscured. The MM enamels and Tamiya acrylic went on and stuck fine. For masking I used my standby masking material, which is Parafilm M. I only use tape for masking straight lines but this test I burnished some Tamiya masking tape down on the primers and left it for a while. I had no issues anywhere with the primer or overlying paints lifting. Below is the completed plane (well almost except for some decal touch-up needed). The black portions are the primer Buffed up.

Definitely a winner, I'll be using more of this primer.

B-52D with Vallejo Primer

  • Member since
    May, 2015
Posted by Griffin25 on Monday, April 30, 2018 2:05 PM

Great looking, killer camo, B-52 especially in 1/320 scale! Myself I have always used Tamiya rattle can grey primer. Forever. Maybe I'm just lazy but it works like a charm, it's quick, comes out as a really fine mist so it's nice and smooth and no clean up. I use it for everything I build. Metal, Plastic, Resin. No masking problems either.

 

Griffin

  • Member since
    February, 2012
Posted by Liegghio on Tuesday, May 01, 2018 1:22 AM

Thank you, the Parafilm works great for complex camo. I can push it around to the right position, stretch it over the surface then cut it, or even twirl it into strings and use them like thin tape. It never seems to lift anything and it has to be really loosely stuck for any bleed under to occur.

Frankly I don’t use rattle cans because I’m cheap! With an airbrush I‘m mostly only using up what hits the model.

I worked on those B52-D’s for a while during the war. With that black camo they were an imposing sight lined up on the flight line in the moonlight. They looked like something Darth Vader would fly before there even was a Darth Vader. I still preferred F-4s though; there was no such thing as working inside one sitting in the tropical, or California sun!

  • Member since
    May, 2015
Posted by Griffin25 on Tuesday, May 01, 2018 11:35 AM

Parafilm eh? That sounds like a good tip. It obviously works well. Thanks bud. 

 

Griffin

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