Permalba Two Original White Artist 150-Ml Oil Colors and Res-N-Gel 150-Ml Tube Original Permalba White ranks highest among the most opaque pigments has been relied on by artists for superior quality and permanence with its buttery consistency since 1921 Res-N-Gel is a full strength ready to use, synthetic resin gel which can be utilized to create a full range of impasto, opaque, translucent glazed effects Traditional pigments with low lightfastness have been replaced with contemporary alternatives, giving the artist the same traditional hues so richly prized but with superior color retention The Permalba oil color line is formulated with refined linseed and safflower oils which minimize after yellowing The entire Permalba oil color line is rated as ASTM Lightfastness I, with the exclusion of the iridescent colors which are not yet rated