This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. If you use water and soap give the door a full day to dry off. Rinse the surface well with clean water and allow it to dry. Just make sure the surface is dry before you start painting or staining it. We highly recommend practicing the technique before you attempt to stain the entire door. She has completed a wide variety of writing assignments for a number of publications that include CNN and various websites. Most professional painters remove the fiberglass door before ... detergent to scrub the top of the fiberglass door. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/ea\/Stain-a-Fiberglass-Door-Step-1.jpg\/v4-460px-Stain-a-Fiberglass-Door-Step-1.jpg","bigUrl":"\/images\/thumb\/e\/ea\/Stain-a-Fiberglass-Door-Step-1.jpg\/aid10110928-v4-728px-Stain-a-Fiberglass-Door-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"
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