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Tamiya Liquid Surface Primer questions

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  • Member since
    October 2016
  • From: Louisiana Gulf South
Tamiya Liquid Surface Primer questions
Posted by Mrchntmarine on Wednesday, November 15, 2023 5:12 PM

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

Keep on modeling!

All the best,

William

  • Member since
    April 2020
Posted by Eaglecash867 on Wednesday, November 15, 2023 6:16 PM

Mrchntmarine

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

 

If its the same as their surface primer in spray cans, I would say that lacquer thinner would be just fine.  Personally, I use MEK to thin mine and clean the airbrush with afterward, but lacquer thinner should also work.  A solvent I found that has known compatibility issues with Tamiya Surface Primer is Isopropyl Alcohol...turns the primer into cottage cheese.

I would avoid brushing anything laquer or acetone based (Tamiya Surface Primer has a lot of acetone in it) directly onto anything plastic.  Brush painting puts the paint/primer on much thicker and wetter than an airbrush would, and can damage your parts.  For primering small parts, I typically use a hot glue gun to stick the small parts to a blunted toothpick.  I can usually find a section of the part, such as an attachment peg, that I wouldn't want to get paint on anyway and just use that as the point where I glue it to the toothpick.  Then I use the edges of cheap rolls of masking tape as kind of a dart board to poke the sharp end of the toothpick into to hold them, and just grab each toothpick off the roll, primer or paint, and then stick the toothpick back into the roll so the part can dry undisturbed.

Here's an example.  The individual exhaust petals from an F-35A project I've been working on.

 

"You can have my illegal fireworks when you pry them from my cold, dead fingers...which are...over there somewhere."

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Wednesday, November 15, 2023 7:48 PM

Mrchntmarine

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

 

This has been my go to primer for many years.

1, yes it thins well with lacquer thinner. I use Kleen Strip that I buy at the hardware store... nothing fancy

2, I havent tried any other thinners, because I get desired results with what I use. I tend to stick with known constants, unless given a solid reason to try something else.

3, I have cleaned my airbrushes with lacquer thinner after using Tamiya LSP, again for its known quialities. No pressing need to try something else.

I suppose it would be ok to hand brush on small parts, but you'll get a muich thicker application compared to airbrushing.

 

 

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

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    October 2016
  • From: Louisiana Gulf South
Posted by Mrchntmarine on Friday, December 1, 2023 6:01 PM

Eaglecash867

 

 
Mrchntmarine

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

 

 

 

If its the same as their surface primer in spray cans, I would say that lacquer thinner would be just fine.  Personally, I use MEK to thin mine and clean the airbrush with afterward, but lacquer thinner should also work.  A solvent I found that has known compatibility issues with Tamiya Surface Primer is Isopropyl Alcohol...turns the primer into cottage cheese.

I would avoid brushing anything laquer or acetone based (Tamiya Surface Primer has a lot of acetone in it) directly onto anything plastic.  Brush painting puts the paint/primer on much thicker and wetter than an airbrush would, and can damage your parts.  For primering small parts, I typically use a hot glue gun to stick the small parts to a blunted toothpick.  I can usually find a section of the part, such as an attachment peg, that I wouldn't want to get paint on anyway and just use that as the point where I glue it to the toothpick.  Then I use the edges of cheap rolls of masking tape as kind of a dart board to poke the sharp end of the toothpick into to hold them, and just grab each toothpick off the roll, primer or paint, and then stick the toothpick back into the roll so the part can dry undisturbed.

Here's an example.  The individual exhaust petals from an F-35A project I've been working on.

 

 

 

 

Nice - thanks.  I couldnt get the pic to come up, but i get the idea and see it well enough here. looks smart - thank you.  But, i have just a few small parts and no glue gun yet....  There tiny - maybe a can brush stynlrez(SP?) ?  I always get that spelling wrong!

Keep on modeling!

All the best,

William

  • Member since
    October 2016
  • From: Louisiana Gulf South
Posted by Mrchntmarine on Friday, December 1, 2023 6:03 PM

stikpusher

 

 
Mrchntmarine

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

 

 

 

This has been my go to primer for many years.

1, yes it thins well with lacquer thinner. I use Kleen Strip that I buy at the hardware store... nothing fancy

2, I havent tried any other thinners, because I get desired results with what I use. I tend to stick with known constants, unless given a solid reason to try something else.

3, I have cleaned my airbrushes with lacquer thinner after using Tamiya LSP, again for its known quialities. No pressing need to try something else.

I suppose it would be ok to hand brush on small parts, but you'll get a muich thicker application compared to airbrushing.

 

 

 

Thanks Stik.  Your preferred ratio thinner to primer?

Keep on modeling!

All the best,

William

  • Member since
    April 2020
Posted by Eaglecash867 on Friday, December 1, 2023 6:49 PM

Mrchntmarine
Nice - thanks.  I couldnt get the pic to come up, but i get the idea and see it well enough here. looks smart - thank you.  But, i have just a few small parts and no glue gun yet....  There tiny - maybe a can brush stynlrez(SP?) ?  I always get that spelling wrong!

I've never used Stynylrez so, I'm not sure.  Probably couldn't hurt to give it a try on one of the small parts.  Since its not lacquer-based, it shouldn't hurt the plastic.  I personally try to avoid brush painting anything but the smallest items (such as buttons and knobs), but I'm also finding lately that airbrushing some MRP clearcoat over a larger area that I have brush painted seems to take away the overly-thick look of brushed-on paint.  That's one of the cool things about this hobby.  There's always going to be some new thing that you try as an experiment, and it ends up working out really well.

"You can have my illegal fireworks when you pry them from my cold, dead fingers...which are...over there somewhere."

  • Member since
    October 2016
  • From: Louisiana Gulf South
Posted by Mrchntmarine on Saturday, December 2, 2023 12:30 PM

Eaglecash867

 

 
Mrchntmarine
Nice - thanks.  I couldnt get the pic to come up, but i get the idea and see it well enough here. looks smart - thank you.  But, i have just a few small parts and no glue gun yet....  There tiny - maybe a can brush stynlrez(SP?) ?  I always get that spelling wrong!

 

I've never used Stynylrez so, I'm not sure.  Probably couldn't hurt to give it a try on one of the small parts.  Since its not lacquer-based, it shouldn't hurt the plastic.  I personally try to avoid brush painting anything but the smallest items (such as buttons and knobs), but I'm also finding lately that airbrushing some MRP clearcoat over a larger area that I have brush painted seems to take away the overly-thick look of brushed-on paint.  That's one of the cool things about this hobby.  There's always going to be some new thing that you try as an experiment, and it ends up working out really well.

 

 

thnaks!  I might get some MRP clear coat to have on hand. My parts are small - 1/5 size of you average fat thumbnail. Haha. 

Keep on modeling!

All the best,

William

  • Member since
    November 2018
Posted by oldermodelguy on Sunday, December 3, 2023 11:23 AM

Just FWIW, I've brushed the Stynlrez, don't try to cover it  your part all in one coat. Float it on and leave it for a second coat if needed.If you start messing with it by brushing re brushing etc. you just screw it up.  It's really made to be sprayed but you can brush it for small things. Larger areas are kind of a Bust but using a wide brush you can kind of slosh it on, again in a couple of coats.. And sloshing is a good word in this case, forget any fancy terminology as to how this goes lol..

I only use Stynlrez and Mr Primer Surfacer or decanted Mr Surfacer for primers, can't really help with the Tamiya primer questions. Except that I know thinner for it is lacquer thinner since it's lacquer based.

  • Member since
    July 2004
  • From: Sonora Desert
Posted by stikpusher on Sunday, December 3, 2023 8:41 PM

Mrchntmarine

 

 
stikpusher

 

 
Mrchntmarine

Going to use this for the 1st time and have a few , most likely, redundant questions:

1)  i see its ok to thin w/ lacquer thinner? 

2)  can it also be thinned w/ Mr Color leveling Thinner 400?  If so, better than Tamiya LT?  Why, why not?

3)  clean up AB w/ LT or denatured alcohol?  I saw that denatured alcohol will work too.

 

Thanks for any tips / thoughts!

 

PS - ok to brush on small parts straight from bottle?

 

 

 

This has been my go to primer for many years.

1, yes it thins well with lacquer thinner. I use Kleen Strip that I buy at the hardware store... nothing fancy

2, I havent tried any other thinners, because I get desired results with what I use. I tend to stick with known constants, unless given a solid reason to try something else.

3, I have cleaned my airbrushes with lacquer thinner after using Tamiya LSP, again for its known quialities. No pressing need to try something else.

I suppose it would be ok to hand brush on small parts, but you'll get a muich thicker application compared to airbrushing.

 

 

 

 

 

Thanks Stik.  Your preferred ratio thinner to primer?

 

 

I tend to start with around 2 parts thinner to 1 part primer and adjust from there.

 

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

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

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