Step 1: Surface Preparation (Do not sand grained fiberglass!)
Lay door horizontally on saw horses or a table.
Remove all hardware and mask off anything you don’t want
such as the glass insert.
Wipe the door with mineral spirits to clean any dust or residue
from the surface. Allow the door surface to dry completely before applying
*For best stain results,
please make sure temperatures are between 50°F - 90°F, humidity below 85%, do
stain in direct sunlight, and do not stain or apply top coat when dew is
Even a well-finished fiberglass door will be affected by exposure and
weathering from the sun, moisture, and air pollutants. It is considered normal
maintenance to re-apply the topcoat approximately every two years.
Due to the variability in finishing materials, application conditions, and
techniques, all of which are beyond the control of Plastpro, Plastpro cannot be
responsible for the performance of field applied finishes or individual application
*Staining instructions are for Oil-Based, Premium Quality Wood Stains, or
similar products designed for use on a fiberglass surface. Please note the
instructions indicated are specific to the Zar brand stain included in our stain kit.
Please reference the stain manufacturer’s instructions before applying