USED IN ASTM D4400, TEST METHOD FOR SAG RESISTANCE OF PAINTS

This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance is related to the degree of sagging and provides a numerical value referred to as the Anti-Sag Index. The higher the Anti-Sag Index the better the sag resistance of the coating. The development of this instrument and its versatility for control and research have been described in published reports.1.2 The Anti-Sag Meter is called for in ASTM3 and Federal4 test methods and is essential equipment in paint laboratories in the U.S.A. and throughout the world. Fig. 2 shows a typical test obtained with this applicator.
1. Official Digest (JCT), October 1962 3. ASTM Method D 4400 2. Official Digest (JCT), January 1964 4. U.S. Fed, No. 141 Method 4494

Fig. 2 - Typical Test Pattern
This test was made with the Medium Range Anti-Sag Meter.
The test surface is a Form 7B Sag & Leveling Chart.