Can You Paint Fiberglass Window Frames? A Practical 7-Part Guide

https://web-wiki.win/index.php/Why_Old,_Drafty_Windows_Are_Costing_You_a_Small_Fortune_%E2%80%94_and_Which_Fix_Actually_Makes_Sense

1. Why painting fiberglass window frames works and when it makes sense Fiberglass is not a paint-repellent material