Coatings

An ultra-high solids content primer coating composition comprising:

• (i) 5.0 to 50 wt % based on the total weight of the composition of at least one bisphenol F epoxy resin;
• (ii) 1.5 to 12 wt % based on the total weight of the composition of at least one silane;
• (iii) 0 to 20 wt % based on the total weight of the composition of at least one hydrocarbon resin;
• (iv) 1.0 to 15 wt % based on the total weight of the composition of at least one polyfunctional reactive diluent;
• and
• (v) at least one curing agent;
• wherein said composition has a solids content of at least 90 wt % measured according to ASTM D5201-05;
• wherein said composition has a viscosity of 200 to 800 cps at 23° C. and 50% RH (ASTM D4287);
• and
• wherein the ratio between active hydrogen equivalents in the curing agent and epoxy equivalents of the coating composition is in the range 50:100 to 120:100.