Preparing Gelcoat for Awlgrip Paint Systems
When applying Awlgrip or Awlcraft coatings over fiberglass boats, proper preparation of existing or new gelcoat is critical for long-term adhesion and finish quality.
Most adhesion failures in marine paint systems occur because of poor surface preparation rather than product failure.
Why Gelcoat Preparation Matters
- Free of wax and contamination
- Properly sanded to create mechanical adhesion
- Completely dull with no remaining gloss
- Cleaned with approved solvents
Surface Preparation by Gelcoat Condition
Existing Gelcoat (Most Common)
Remove wax and contamination using solvent wash. Sand the surface using 120–220 grit until all gloss is removed. The surface should appear evenly dull before primer application.
Heavily Oxidized Gelcoat
Sand with 80–120 grit to remove oxidation and chalking. Follow with finer sanding to refine the surface before applying Awlgrip primers.
New Gelcoat or Molded Parts
Fresh gelcoat often contains mold release agents and wax. Clean thoroughly with solvent and sand with 120–180 grit to create proper adhesion before primer.
Cleaning Before Priming
Cleaning is critical before primer application to prevent fisheyes and adhesion problems.
- Wash surface with soap and water
- Remove wax contamination
- Wipe down using Awlprep or acetone
- Use lint-free cloths and clean wiping methods
Primers Used Over Gelcoat
After proper sanding and cleaning, Awlgrip primers are typically applied to create a stable base for the topcoat system.
- Awlgrip 545 Epoxy Primer (D8001 / D3001)
- High build primer(D8002/D3002)
- Awlfair (D8200/D7200)
Next Step: Awlgrip Application
Need Help With Awlgrip?
Email: orders@fiberglassflorida.com
Call: 321-639-3046
Fiberglass Florida — Master Awlgrip dealer providing professional marine coating support.
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