How to Clean and Spray Paint Cabinet Hinges

Updating cabinet hinges alongside a cabinet repaint is a common, worthwhile detail — hinges accumulate real grease and grime given their kitchen location, and painting them means being deliberate about keeping paint out of the actual hinge mechanism, both considerations that matter more here than for most small metal parts.

1. Remove hinges for the best result

Removing hinges from the cabinet entirely, rather than painting them in place, allows full, even coverage on all sides and keeps overspray off the surrounding cabinet — following the same general logic covered for removing hardware before painting any piece of furniture.

2. Degrease thoroughly before anything else

1. Soak hinges in a degreasing solution (dish soap and hot water, or a
   dedicated degreaser for heavier buildup)
2. Scrub with an old toothbrush to reach into crevices and hinge joints
3. Rinse thoroughly and dry completely

Kitchen cabinet hinges accumulate cooking grease at a rate most other painted metal items don't — this degreasing step matters more here than the general cleaning step covered for most other spray-painting projects, and skipping it undermines paint adhesion the same way residual grease would on any other surface.

3. Light sanding or deglossing the existing finish

A light scuff-sand or liquid deglosser on the hinges' existing factory finish, following the same deglossing logic covered for any glossy metal surface, gives new paint or primer something to grip.

4. Mask or protect the actual hinge mechanism

The moving joint of the hinge — where the two hinge leaves pivot against each other — should be masked with painter's tape or petroleum jelly (removed after painting) to keep paint out of the mechanism itself; paint buildup in a hinge joint can cause stiffness or squeaking once reinstalled, a functional problem beyond just appearance.

5. Prime with a metal-appropriate primer

A primer rated for metal, following the same logic covered for any small metal hardware project, gives the spray paint topcoat a more reliable adhesion base than skipping straight to paint on bare or degreased metal alone.

6. Spray in thin, even coats, working the mechanism gently between coats

1. Apply 2-3 thin coats of spray paint, allowing appropriate dry time
   between coats
2. Gently work the hinge open and closed once between coats (if the paint
   is dry enough not to smear) to prevent it from painting itself shut
   at the joint

7. Full cure time before reinstalling and using

Given that hinges immediately return to regular mechanical use (opening and closing cabinet doors) once reinstalled, allowing genuinely full cure time — not just dry-to-touch — before reinstalling helps the paint hold up to that immediate repeated mechanical stress rather than chipping or wearing at the joint right away.