Baking soda- vinegar wash

[gomergizmo]

Just curious. If you were to put a mix of vinegar and water in a plastic dish then added a teaspoon of baking soda would it do a good job of taking injection molding residue off? Would it also leave a nice flat almost scuffed finish?

AndrewR, you are the fizz-a-sist.

[AndrewR]

Pity it's a chemistry question Oh, hang on a minute, I used to be a chemist before I was called to the dark side...

You'll get a lot of fizzing and heat generated as the acetic acid in the vinegar neutralizes the alkaline sodium bicarbonate. The heat produced will make the solution warm. It might help remove oily residue, but washing in warm soapy water would be more effective. But much less fun...

Cheers

Andrew

[gomergizmo]

Cant blame me for wanting to be a redneck chemist. Might just give it a whirl on something that I messed up one time. Probably get shot for this one but, but here goes, a Tamiya RNS Harrier FRS.1.

[gomergizmo]

This F6F build is coming along. Took a large margerine tub added some warm water and baking soda. Washed all the parts with a one inch paintbrush. Then took about half a cup of vinegar and poured it into the baking soda and water. It fizzed for a minute. Cleaned up with warm water and let things dry. Today was a coat of sealer and black paint. Seems the paint adhered very well. The nice thing about the JoSonja carbon black is that is is black. Very black. Going to be interesting to see how the orange goes on and covers the black. The main point is the wash mentioned here seemed to have worked very well.

[AndrewR]

That really is black, blacker than black! I usually add a little blue to my black for painting night fighters. I've seen people add a little red as well. I hope the orange covers that!

cheers

Andrew

[gomergizmo]

I hope the orange covers that!

I think you saw the orange is certainly orange too Andrew. Will probably need to be done in stages. Fine coats and let them dry well. Unless there is another way. Maybe hit it with grey first?

[AndrewR]

I hope the orange covers that!

I think you saw the orange is certainly orange too Andrew. Will probably need to be done in stages. Fine coats and let them dry well. Unless there is another way. Maybe hit it with grey first?

I'd try directly with the orange, given the intensity of the pigments!

[Clashcityrocker]

Whoa, nice black. All the emo modellers are going to like this one (Got any blacker dude?)

Nigel