Art Spectrum® Underpainting White is a fast drying oil-resin white ideal for priming and under painting. Straight from the tube it has a soft, cottage cheese like consistency which becomes smooth when brushed out or worked with a palette knife. Underpainting white dries in around half the time of other whites.
| Pigments | Lightfastness | Permanence | Transparent/Opaque |
| PW6, PW4 in alkyd resin base | ASTMI | **** (excellent) |
Opaque |
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.