what is it?

B

Bob Hollinshead

The GM cars of the 60's had a textured interior paint that was used on the tops of the dash and also below the rear window, Non Glare I guess. It has a light pebbly texture similar to Mopar Organisol paint. The paint is available through a few suppliers and it's lacquer based. My question is.... Does anyone know what additive is used to provide for the texture? I strained some of this paint through a coffee filter today to get a look at what it is and can't figure it out. I'm thinking it's a silica/glass or something similar but I'd really like to know for sure, I think it could be used in a urethane with the same results if the viscosity is right.
 
the newer self texturing paints have an additive called ceraflour. It looks like flour, paint dries around it. Finer the grain, finer the texture. Sand is used for anti slip, and usually is too heavy for the paint to flow around and stay complete, especially if its a fast drying lacquer.

as far as industrial side texturing, its done with a pressure pot, you catalyze your paint, do not add thinner, increase the pressure in the pot and lower the air pressure and spit out the paint in droplets. Texturing first gives a more flowed in effect, on top is more of the old westinghouse appliance with dots on top, I would try that before adding anything to the paint, I am sure you can copy it. regular thinning for the base, no thinning (or less thinning) for the texture.

I have textured with a gravity feed gun just by opening your fluid and lowering your air inlet pressure.
 
It would be great knowing what the additive is. When you buy the textured paint from one supplier and the non textured paint from another supplier... it can end up being quite a paint mismatch especially when dealing with blue's, greens etc... If I knew what the additive was I'd consider using a flattened urethane singlestage instead of lacquer and add the texture when needed.
 
I add micro balloons to my paint when I want texture and its an awesome finish. But I have never tried it with SPI Products.
 
It has to be micro-balloons. I see a few suppliers listed online but nothing about size-is this stuff consistent on sizing?
 
the 60's is before me but i think i know what your talking about. its not a heavy texture right? its still somewhat smooth? not lumpy? i just designed and printed a gauge panel for my dad's truck. i painted that and gave it the texture i think your looking for. its easily done with just basecoat. let me see if i can get a picture of it in a little bit. ill post it up.
 
The texture is very similar if not the same as organisol-the paint Mopar used on their flat black hoods. Fine texture but rough.
 
something like this IMG_5089.jpg
 
ok well i did a google images of organisol and all the pictures that popped up were all resprays or replicas. i didnt see any original dash pictures so hard to say BUT from the pictures i did see it looked like fine non-skid particles. glasurit has fine texture additive to give this effect. basf also has it in the uno line but not sure what they are calling it there. they both give a finish identical to the pictures that popped up. i used to use it for some subwoofer door panels i used to make. the stuff really worked well BUT as a finish i thought i sucked. for an interior you couldnt even wipe it down. it pulls the fuzz right out of a rag. like trying to wipe down 180 grit sandpaper. what i did above sort of gives the effect but doesnt do that. the texture isnt gritty.
 
well thats easy. just spray your base until its covered. when done pour it into a touchup gun and turn the psi down to maybe 1/4-1/2 lb. it just spits out. the more air the finer the texture. hold the gun about a foot away and splatter the whole thing. let one coat dry then do it again. keep going round and round letting it dry between coats. might take 6-7 rounds of adding texture to it until its right. catalyze the base 5-10%. when dry then thats it. no clear or anything is needed. experiment a little doing the texturing. i did that panel at normal reduction. you can get it more grainy im sure by reducing less. thicker base should give a heavier texture but i personally like what i have there. its nice for interior without being overkill. then again i know your trying to reproduce something also. also....your base might need a little flattener added if its too shiny for ya. what you see in the pic had just a touch and that is wanda. if i would have looked that up in a diamont interior formula theirs would probably have called for about the same amt. each base will vary im sure.
 
Thanks Jim, might work with some experimentation. I did the droplet effect with lacquer on the last car I did, it looked nice but the texture wasn't quite right IMO. I have to look at a few more original examples I guess before I get my plan down. Ideally, eventually... I'd like to be able to do it all in a urethane single stage and tune it for flatness and texture.
 
anotheridiot;n80460 said:
I use these little ceramic balls to insulate floors http://www.hytechsales.com/insulating_paint_additives.html they are just ceramic spheres.They would give you a very very consistent texture. Those flours bulk up and make different sized dots, but still alot more consistent than if you drop the pressure and spit it out of your gun.

I was planning on mixing those in epoxy for my floor pan. Do they still spray through the gun, what tip size?
 
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