How to Paint Cabinets
Make sure they are clean and dry. Remove the doors and hardware. Mark the doors and cabinets with tape where they go. Lightly sand the doors and cabinets to remove any gloss and roughen the surface for paint with 220 grit sandpaper or a green Scotch Brite pad.. Use a tack cloth or damp rag to remove dust after sanding. Prime with a stain blocking primer like KILZ. Acrylic or water base paints are low-fume and clean up easily with water. Alkyd or oil-based paints require good ventilation because the paint contains solvents that can irritate your lungs and make you feel sick. Alkyd options require mineral spirits for cleanup, but they provide a hard, durable paint finish. Whichever you use, buy the best-quality paint you can afford for a lasting kitchen cabinet finish. Seal with at least three coats with a water based polyurethane. Use a small foam roller and foam brush for a smooth finish.
Other ways from other Hometalkers
Hope this helps you out.
Hi Dianne: If the door was previously painted or stained, follow the same pattern to apply a bonding primer to the entire door before you begin painting. Choose exterior-grade water-based latex paint. Oil paint will not damage the fiberglass but is much more difficult to use. Lacquer is not recommended for fiberglass surfaces.
Here are some sites that should help, especially this first one :)
This one is about doors, but there should be some tips here that should help:
There is paint formulated for fiberglass. Make sure you get that. I would spray them after cleaning well. First with warm soapy water then denatured alcohol b
Always use paint that is labeled for the surface you are painting. Follow the directions on the paint for good adhesion. Make sure the surface is clean and dry before starting.
Here is some info to help you with your project.
I've not painted fiberglass cabinets, but rustoleum tub&tile is designed for fiberglass tubs and should be appropriate for other fiberglass. The tricky part is that fiberglass has a clear coat over it. You don't want to remove the clear coat because it is what stabilizes the fiberglass, however it is a slick finish and needs a little tooth.
Clean the fiberglass using dish soap. Rinse the surface, and allow it to dry completely before continuing.
Abrade the fiberglass to promote adhesion by sanding it with a palm sander loaded with 400-grit sandpaper.
Wipe down the fiberglass with a tack cloth.
Cover any areas of the fiberglass you do not want painted with painter's tape. Cover large areas below or adjacent to the fiberglass with drop cloths.
Apply a very light coat of primer to the fiberglass. Spray in intermittent mists to promote a professional-looking finish free of runs, drips, and sagging. Do not apply a constant stream, or you may end up with flaws in the finish coat.
Allow the primer to dry and cure for fours hours, and then apply a coat of acrylic spray paint in the same way you applied the primer.
A basic spray paint or latex-acrylic paint will do just fine on a decorative piece or a door. Polyurethane or epoxy paint are better suited to surfaces that will see a lot of heavy use, such as boats, bathtubs, and sinks. Polyurethane paint is ready to use. Home Depot sells fiberglass paint.
Try to sand them with light sand paper first make them smooth so the paint will stick.then roll them with a roller so you won’t get brush marks.take your knobs off to paint.