yesIve got a couple of cans of U-Pol etch primer which I've only ever used on steel . Will it be ok for a cast alloy air cooled engine cowl ?
beads peen the surface and make it smooth .blasting with fine abrasive etches the surface and gives a good finish for coating . a well known bag of dried yellow abrasive from wickes is perfect on allyThanks, will bead blast it and the cans are less than a year old so with the sun shining it's all things go!