How do you fix a crack in a fiberglass door?
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			How to Repair a Crack in Fiberglass
 - Drill a tiny hole at each end of the crack. This will stop the crack from extending any further.
 - Examine the crack.
 - Wipe the crack with a dry rag to make sure it's clean and dry.
 - Fill the crack with a fair amount of fiberglass epoxy resin, using a plastic applicator.
 - Let the epoxy dry for a day.
 
Also, how do I fix a crack in my door?
No parts specified.
- Step 1 How to Fix a Crack in a Hollow Wood Door.
 - Sand the affected area with a 60/80 grit sanding sponge.
 - Remove any sand/dust with a paper towel.
 - Use putty knife to apply body filler until an even layer is formed.
 - Remove any excess body filler with putty knife.
 
Additionally, how do you fix a crack in a fiberglass chair?
How to Repair Cracked Fiberglass Chair Shells
- Sand the back of the chair shell with 100-grit sandpaper to roughen the surface.
 - Wash the front and back of the chair shell with acetone and a rag.
 - Apply masking tape over the crack on the front of the chair.
 - Tear four pieces of fiberglass mat into pieces to cover the crack.
 - Put on rubber gloves.
 
Seal narrow cracks with paintable or clear latex caulk, either at the top or along the bottom where the baseboards meet the floor. Run a continuous bead of caulk along the gap and smooth it with a caulk tool or wet finger. Wipe away the excess caulk with a damp cloth.