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Zinsser PaintBooster 303838 Flow Control Paint Additive, Oil Based, Quart

Free shipping on orders over $29.99

$29.99

$ 15 .99 $15.99

In Stock
  • Extends open time to work with oil-base coatings by 10-15 minutes making painting easier
  • Oil based formula designed to improve paint flow of Oil or solvent-based coatings, not designed for use with lacquer or other strong solvent paints or primers
  • One quart will treat up to 15 gallons of paint
  • Use to eliminate Brush marks, roller marks and improve paint application with airless sprayers in hot, dry climates
  • Will not impact topcoat flexibility, sheen or Color provides a smooth, even finish for surfaces


Zinsser 1-qt. Paint booster flow control additive for oil based paint improves and extends paint flow in hot weather and spray applications. 4X's ultra-concentrate formula goes further and treats more paint. Paint booster flow control will not affect topcoat color, sheen or flexibility. This formula designed to work with oil-based products only. For water-based coatings, use Zinsser paint booster flow control additive for water based paints.


Paul A. Marino
Reviewed in the United States on October 10, 2018
Is that really does make a difference so glad that I bought it to try it out very pleased very good product. It really does make Big difference to the paint. Enables the paint to be more forgiving if using a brush...
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