Paint over Bondo

so bondo, primer and then sealer... what part number sealer? Gonna start my truck body work soon and need to know. Uncharted waters for me.....sell me a straight heap that don't run....but don't sell me a runner that's all body work....

Sealer is normally just reduced epoxy. Check out the tech sheet on your epoxy to see what the reduced ratio is to make it a sealer.