A short while back I tried this product. Now Tamiya is my go to acrylic paint. It, not only slows the drying time in the bottle but it also acts as a reducer to thin the paint also. If you haven't tried this product yet it's YOUR FAULT. Buy a bottle and amaze yourself....
Tamiya acrylics sometimes kinda suck for brushing, because you need to work fast and need to be careful of painting over anything. This stuff gives you a little more time to get the depth of color you want with a brush.
"Paint retarder a must have."
moutons (western NC)
This item is used to slow the drying of acrylic paint. I have used it with Tamiya acrylics. Acrylic paint will dry very fast and open bottles of paint will skin over with drying paint before painting is completed and this product will reduce this tendency. It also aid airbrush cleaning as the paint will not dry inside the airbrush. A must have item. Only need a few drops at a time.
"A must for airbrushing any medium"
JohnnyNineToes (Chicago, IL)
A necessary addition for airbrushing. The product slows the drying time of the paint which helps when spraying. TPR will help keep the paint from drying from the brush to the surface. Just a few drops are all it takes.