Heck, I took some Krylon Appliance white paint to a set of m1911a1 grips. Still holding up. Prep is the key to any paint job, including duracoat. If the texture of the second set is not too flexible, you should be all right.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)