Internally
Wiki Page(Rates per coat unless stated otherwise) One coat primer, before fixing generally 6.70 m2/hr One coat primer, before fixing lengths 20.0 m/hr Knot, 1 primer, stop, 1 undercoat, 1 gloss 1.75 m2/hr Touchup primer, 1 undercoat, 1 coat gloss 3.10 m2/hr...