**as a Low VOC Primer Surfacer**
A quick cure, sandable primer that provides good sand scratch filling with
excellent adhesion and topcoat holdout.
Mixing Ratio:
4:1:1
4 parts 20U-24
1 part 50U-15, 50U-20 or 50U-30
1 part 60U-500 or 60U-600
**as a National Rule Sealer**
Aperformance sealer that provides good filling properties and quick drying with
good melt-in and topcoat holdout.
Mixing Ratio:
4:1:2
4 parts 20U-24
1 part 50U-15, 50U-20 or 50U-30
2 parts 60U-10, 60U-20, 60U-30 or 60U-40
See attached TDS for more details.