I picked up a couple of Walthers 25’ caboose kits but am having trouble painting the Hand Grabs.
Using Floquil paints it just lays on those tiny wires like tiny balls of paint I work them over with the brush to smooth them out and the paint does not cover very well.
I’ve had pretty good luck using plastic adhesion promoter paint. It’s a spray clear coat made by Duplicolor and sold at auto part stores. It’s a clear coat you spray on the railings and then paint them with the color of your choice. Kind of like a plastic primer that sticks better.
I’ve had similar problems that were resolved by spraying a light coat of Testor’s Dullcote and then painting the grab irons. This seems to work with either solvent base paint or Polly S water base paint.