You must use a good bonding primer.
How do you prep a fiberglass garage doors for paint.
If there are any recesses you will have more brush work to do.
Take your time and apply thin even coats.
Then tape off any areas you don t want the paint to touch like the edge of the house.
Use the type of primer and paint recommended by the door manufacturer.
Apply the paint as you did the primer.
Painting a fiberglass entry door is much like painting a wood door without a need for sanding before paint is applied.
Some doors don t need primer but typically a good quality primer helps the topcoats of paint adhere better and creates a longer lasting finish.
Wait two to three hours for the paint to dry.
Apply acrylic latex paint to the primed fiberglass garage door using the roller.
Use a new roller cover.
Prime the garage door with the brush.
The trick to great paint on fiberglass well on any surface actually is proper prep.
Your door will look much better if you put on two thin coats of paint as opposed to one thick coat.
That is not to say that you cannot paint fiberglass but do take the correct precautions and choose a good primer to increase the staying power.
You knowapplying just the right amount of filler blocking a guidecoat to check for low spots that sort of.
Fiberglass has a somewhat paint resistant surface which can affect the longevity of the coat you put on it.
Raise the garage door 1 foot.