I am looking for an all purpose product that will help paint flow and reduce paint drying on the tip of my airbrush. does liquitex or anybody else make such a product? I use vallejo, tamiya, MM acryl and very rarely polyscale.

I've been using Tamiya acrylic thinner on Tamyia and Lifecolour paints for a bit now.. So far, I've never had any issues with paint clogging.. Runs about 10 bucks for a large bottle.. Depending on how much painting you do, it should last you awhile..

Dave

you seem to use only acrylic, tamiya is an alcool base and you can thin it with alcool 50%,70%,91%. I don't know for MM acrylics water base or alcool base ... I've put once alcool in vallejo and it's not a good idea, the paint seems to coagulate and made a paste ... So
Tamiya = alcool base = alcool for thin it
Vallejo = water base = water to thin with a drop of windex

For mine windex is an excellent product with the artist acrylics I use. Easy flow, easy clean and the smell is not overpowering.

Cheers
Alex H