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Stynylrez - White

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  • Member since
    May, 2012
  • From: Arizona
Stynylrez - White
Posted by pilotjohn on Monday, April 17, 2017 4:18 PM

All;

I have used stynylrez grey and it has been great for a long time.  I recently tried some white as I had a light blue top coat so I didn't want to use the grey.  The white spit and chunked out of the airbrush..  I was using a Patriot 105 with a .5mm needle and 28 psi.  This is what I used for the grey.  I cleaned everything very well and then tried it again the next day.  Shook the primer like crazy and made sure that there were no globs when  I poured it into the airbrush.  I spray it neat.  Same spitting and problems.  Seems like the white is not as "nice" as the grey.  Anyone have any experiences or is it just maybe a bad session or two on my part?  Thanks.

John

  • Member since
    March, 2013
Posted by patrick206 on Monday, April 17, 2017 5:39 PM

pilotjohn

All;

I have used stynylrez grey and it has been great for a long time.  I recently tried some white as I had a light blue top coat so I didn't want to use the grey.  The white spit and chunked out of the airbrush..  I was using a Patriot 105 with a .5mm needle and 28 psi.  This is what I used for the grey.  I cleaned everything very well and then tried it again the next day.  Shook the primer like crazy and made sure that there were no globs when  I poured it into the airbrush.  I spray it neat.  Same spitting and problems.  Seems like the white is not as "nice" as the grey.  Anyone have any experiences or is it just maybe a bad session or two on my part?  Thanks.

John

 

John - I use the B/G and W Stynylrez, all spray well for me, using both medium and large needles/nozzles. I always use a metal stirring paddle, followed by the Badger electric mixer, to ensure all of the settled solids are scraped up from the bottom and everything is thoroughly blended.

If you did go back to the W bottle and use a stick for stirring, I would not be surprised if you get a rather large glob of unblended primer on the bottom of the stick. Just my suggestion, shaking is really not a guaranteed way to completely blend all of the ingredients.

Give it a try, please let us know if that works for you. For what it's worth, I do the paddle stir and mixer blend with all paints, plus pouring through a miniature filter.

Patrick

  • Member since
    January, 2013
Posted by BlackSheepTwoOneFour on Monday, April 17, 2017 6:17 PM

What he said...

Shaking the bottle is never enough. My method is stir the crap first, then shake. Then stir again....

  • Member since
    January, 2014
  • From: Nampa, Idaho
Posted by jelliott523 on Monday, April 17, 2017 7:23 PM

It may be just luck for me, but I have never stirred the Stynylrez primer and have not had any issues. I've been using the black and the grey now for about a year. The one and only time I had an issue with spitting was when I was spraying at too low of an air pressure and also had a very small burr on the edge of the nozzle. I typically spray Stynylrez out of my Badger Krome with the .3 needle at around 25 psi.

Also, I've heard of another person, on another forum, having a similar issue with the white primer, they said that the primer seemed thicker in the bottle and they added a small amount of isopropyl alcohol to achieve a sprayable consistency. I've never thinned these primers myself, I shoot them neat as well.

On the Bench:  Lots of unfinished projects!  Smile

  • Member since
    May, 2012
  • From: Arizona
Posted by pilotjohn on Tuesday, April 18, 2017 11:03 AM

Thanks everyone.  I will pick up one of those little stirring units and then try again.  I will let you know.

John

  • Member since
    March, 2013
Posted by patrick206 on Tuesday, April 18, 2017 7:01 PM

pilotjohn

Thanks everyone.  I will pick up one of those little stirring units and then try again.  I will let you know.

John

 

John - I'll add a bit more to the stirring benefit. My employer used polyurethane paint on it's fleet of commercial jets, being a hobbyist for many years and airbrushing frequently, I asked one of our techs about the paint type and use. He walked me to the paint storage room and showed me the cans, with very explicit printed instructions for preparation.

The instructions made quite clear the need for stirring before use, it stated specifically that shaking the can would not completely blend the entire contents, some of the settled solids will not come off the bottom without stirring. The paint would simply not perform as intended.

I used Vallejo Model Air for a while, their bottle instructions say to just roll the bottle between your hands to prepare for use. Once I figured out how to remove the little top dispenser and used the Tamiya metal stirring paddle, I was amazed at how much of the solids were still on  the bottom after rolling and shaking the bottle, then forming a glob of thick material on the end of the paddle.

So, my personal discipline is to thoroughly stir any and all paints or primers, then blend with mixer and use the paint. Takes very little time and produces very predictable and consistent results. Just my thoughts, I hope this may be of use for others.

Patrick

  • Member since
    May, 2012
  • From: Arizona
Posted by pilotjohn on Monday, May 01, 2017 3:18 PM

I got one of those Badger electric stir thingies and gave it a shot.  It works very well on the Tamiya and Model Master bottles.  I used it on the Stynlyrez and I still got some spitting of white pieces although not as many or as large.

I like the unit, but I would not say it fixed my problem.  The gray sprays really well.  Perhaps I got a bit of a bad batch.

John

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