[Mike Kelly]

We have all done the wrong thing when painting . Nowadays I apply a 2 pack seal coat over the initial primer coat.

The local paint shop here often has 2 pack mismatches they are stuck with . A customer has ordered say 4 litres of the best quality Wattyl 2 pack top coat, the customer turns up, hates the colour and the shop is stuck with the paint, they put it under the lower shelf for sale at less than half new price. Doesn't matter what the colour of the 2 pack is, its job is to seal the primer from moisture. You can then paint your flat khaki enamel over the seal coat.