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423 Graphite Powder

423 Graphite Powder is a fine black powder that can be mixed with epoxy to produce a low-friction exterior coating with increased scuff resistance and durability. Epoxy/graphite is commonly used as a low-load, low-speed bearing surface, as a coating on rudders and centerboards, or on the bottoms of racing craft that are dry sailed. It does not provide antifouling qualities. Add to any mixed WEST SYSTEM® 105/200 Series Hardener combination.

Designed for :

  • Low-Friction Coating
  • Scuff Resistance
  • Color Modification
WEST SYSTEM| image: 423-copy


Create an abrasion and moisture-resistant surface in:

  • Fiberglass Repairs
  • Bridge Gaps in Strip Planking
  • Rudder Coating
  • Centerboard Coating
  • Bottom Coating Race Craft


  • Color | Black
  • Fine Graphite Powder


  • 12 oz of 423 will modify up to 1 gal of mixed epoxy
    • 10% by volume (1.5 tbsp) | 8 fl oz epoxy

Product Size:

  • 12 Ounces



Modifying with fillers and additives makes WEST SYSTEM epoxy extremely versatile for a wide variety of bonding and coating applications. Epoxy can be thickened to the ideal consistency needed for a particular job. Epoxy thickened with adhesive (high-density) fillers strengthens structural bonds, bridges gaps, and fills voids. Epoxy thickened with fairing (low-density) fillers is easily sanded and shaped after it cures.

Fiberglass Repairs

Recently we revised our most popular instruction manual, Fiberglass Boat Repair & Maintenance, bringing it up to date and expanding it to 146 pages. It contains the very latest fiberglass repair techniques and features complete sections devoted to repairing cracks, holes, damaged skins, cores, keels, and rudders, installing hardware, installing teak veneer decks, gelcoat blister repair and prevention, and final fairing and finishing.

Using WEST SYSTEMFillers & Additives