kidbion.blogg.se - Drawdown bar

Drawdown bar series#

The drawdown process consists of many variables. We cannot guarantee that you will draw down the theoretical wet film thickness. If you have a gap clearance of 6 mils, the theoretical wet film thickness etched on the bar applicator is 3 mils. The theoretical wet film thickness is roughly one-half the actual gap clearance. The theoretical wet film thickness is etched onto every drawdown bar. These 440 grade stainless-steel bar film applicators are the highest quality and easiest to clean and maintain due to their simple design and rugged construction.

Available in three film widths, 2 in., 3 in.

Simple, accurate, and easy to use, no adjustments required.

Packaged in a handy reusable box to prevent damage.

Made from high-quality 440C stainless steel.

Eight fixed gap applications all in one.

Multiple clearance applicators combine the accuracy of fixed applicators with the versatility of multiple clearance and gap choices in one unit.

Available in most coating thickness ranges.

Quick test of the sagging of coatings on nonhorizontal surfaces.

Allows quantification of the sagging properties of coatings.

The clearance of the gap that produces the thickest film stripe, not sagging completely to the stripe below, is the anti-sag index of the coating. As the film stripes sag downward, some of the uncoated 1/16 inch (1.6 mm) spaces may become entirely covered. This panel is placed on a vertical surface with the stripes horizontal and the thickest stripe lowest.

Drawdown bar series#

When a drawdown is made, a series of parallel stripes of different wet film thickness will be formed.

(127 mm) wide and produces a total film width of 3 3/8 in. (6.4 mm) wide notches of varying clearances, spaced 1/16 in. The applicator is a U-shaped drawdown bar with a series of 1/4 in. Sag resistance is a factor of the composition and viscosity of the coating, as well as the applied thickness. Coatings applied on nonhorizontal surfaces will sag due to gravity.