The TQC anti-Sag Applicator is designed for anti-sag evaluation. The total film width of 90 mm is divided into 10 gaps in equal parts, and the depth is increased by 25 μm. The spacing between each gap is 1.5mm.
The coating is applied in the same way as that of a standard rod applicator, but the test plate is then lifted and turned at 90 degrees to the horizontal plane, preferably with the thickest coating at the bottom of the sample.
The droop index can be determined by the first track, which does not show signs of sag on the next track below.

The TQC Gloss Anti-Sag Tester has a detachable deflector plate. The deflector ensures direct stretching on glass panels or thicker test panels
Standard:ASTM d4400,ASTM d1084
| Model | specification |
| VF2250 | 50~275μm |
| VF2251 | 250~475μm |
| VF2252 | 450~675μm |
| Other parameters | |
| Groove difference | 25μm |
| Coating film width | 90mm |
| standard | ASTM D4400,ASTM D1084 |