Painted the upper and lower cowl plus air inlet parts with exterior latex house paint primer from Lowe's, about $30 per gallon. Hardware store screws in the nut plate holes keep paint out of the screw threads. This is the same paint as previously used on the wings and fuselage. My water separator was working overtime to supply dry air to my low pressure high volume paint gun during the rain storms today. The primer was dry to the touch in about 5 minutes even with the high humidity. That is one of the features of water base paints.
https://s3.amazonaws.com/expercraft/sidwood/92480963353618a9681e08.jpg https://s3.amazonaws.com/expercraft/sidwood/134444634453618a9684516.jpg Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA