West System 655-423 Graphite Powder Epoxy Additive
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You have 30 days to request a return. All sale items are final sale.
West System 655-423 Graphite Powder Epoxy Additive
Give your epoxy coating a performance edge. West System Graphite Powder is a very fine black powder additive mixed directly into epoxy resin and hardener to create a low-friction, mar-resistant exterior coating surface. The result is a tough, scuff-resistant finish that holds up to abrasion and contact — without the need for a separate antifouling paint.
Mixed into West System C105A Epoxy Resin at up to 10% by volume (or up to 8 fl. oz. per epoxy mix), graphite powder transforms a standard epoxy coat into a durable, low-drag surface coating. It is not an antifoulant and does not replace bottom paint where biofouling protection is required.
Key Features
- Creates a low-friction, low-drag exterior coating surface
- Increases scuff and mar resistance of cured epoxy
- Ideal for rudders, centerboards, and dry-sailed racing craft bottoms
- Can be used on teak deck construction to simulate traditional caulking and protect resin from UV
- Mix at up to 10% by volume or 8 fl. oz. per epoxy batch
- Not an antifoulant — does not replace bottom paint for vessels kept in the water
Parts Desk Insights
Best Use Case: Recommend this to racing sailors and performance boatbuilders looking to reduce hull drag on dry-sailed boats — particularly on rudders, daggerboards, and centerboards where a smooth, low-friction surface directly affects speed. It’s also a practical choice for teak deck work where customers want to protect the epoxy from UV degradation while achieving a dark caulking-line appearance. Pair with West System C105A Epoxy Resin and the appropriate hardener. Remind customers this is not an antifouling product — boats kept in the water still need a separate bottom paint system.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.