Grind the above and thin with: Long Oil Alkyd, 60% solids/610 Mineral Spirits/39 Water/66 Cobalt Naphthenate 6%/3 Lead Napthenate 24%/6 Hiding power equivalent to 5.7 lb titanium calcium pigment per gallon. If more hiding power is desired-use rutile titanium dioxide for Titanox C-50. If less hiding power is desired substitute C-50, RCHT or Ti-CAL for titanium dioxide.