Gelkyd 320 WD 45 Thixotropic alkyd Atofina-Cray Valley Alkyd Resins Coatings GELKYD 320 WD 45 is thixotropic alkyd- strong gel. It is co-binder for use with long oil alkyds. It possesses reduced odour and very rapid recovery of thixotropy. It is used in smooth or stippled semi-gloss paints depending on the choice of the Newtonian resin, gloss paints, all undercoats. Thixotropic alkyd. Used in smooth or stippled semi-gloss paints depending on the choice of the Newtonian resin, gloss paints, all undercoats. Possesses reduced odour and very rapid recovery of thixotropy.