If the fiberglass door is completely flat you can use a paint brush to cut around the edges and a roller to paint the rest of the door.
How do you prep a fiberglass garage doors for paint.
Your door will look much better if you put on two thin coats of paint as opposed to one thick coat.
Before painting a garage door clean it with a sponge and soapy water and dry it with a towel.
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.
You must use a good bonding primer.
Then tape off any areas you don t want the paint to touch like the edge of the house.
Take your time and apply thin even coats.
If there are any recesses you will have more brush work to do.
You knowapplying just the right amount of filler blocking a guidecoat to check for low spots that sort of.
Next apply 1 coat of primer to help the paint stick and allow it to dry for 12 hours.
Painting a fiberglass entry door is much like painting a wood door without a need for sanding before paint is applied.
Wait two to three hours for the paint to dry.
Use a new roller cover.
Use the type of primer and paint recommended by the door manufacturer.
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.
Prime the garage door with the brush.
Apply the paint as you did the primer.
Fiberglass has a somewhat paint resistant surface which can affect the longevity of the coat you put on it.