West System C207SC Special Clear Hardener, 5.49 L (1.4 Gallon)
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West System C207SC Special Clear Hardener — 5.49 L (1.4 Gallon)
The C207SC is the large-format option in the West System Special Clear Hardener series — built for production shops, professional boatbuilders, and high-volume coating projects where a crystal-clear, water-white epoxy finish is required. Engineered to perform in humid conditions where standard hardeners can blush or cloud, it delivers a consistently clear result over wood, fibreglass, and composite surfaces at scale.
Paired with West System C105B Epoxy Resin (3.74 L) or the bulk West System C105C Resin (16.46 L), the C207SC produces a tough, UV-stabilized epoxy film suited for large-area brightwork, clear coats, and structural bonding where both appearance and volume matter. A UV-protective topcoat of quality marine paint or varnish is still required for long-term exterior protection.
Key Features
- Produces an extremely clear, water-white finish — ideal for clear-coating wood and fibreglass at scale
- Performs reliably in humid conditions, resisting blush and cloudiness
- Excellent adhesion for both coating and bonding applications
- Contains UV-stabilization additive for extended clarity
- 20–26 minute pot life at 70°F (21°C) — workable open time for careful coating work
- Cures to a solid state in 10–15 hours; full hardening over 4–7 days
- Compatible with the West System 30625 Large Capacity 306 Metering Pump for accurate 5:1 metering
Also Available In
- West System C207SA Special Clear Hardener — 315 ml (10.6 oz.)
- West System C207SB Special Clear Hardener — 1.24 L (42.2 oz.)
Parts Desk Insights
Best Use Case: The C207SC is the right call for professional shops and production boatbuilders running large-scale epoxy coating or laminating operations — think full hull clear coats, large deck refinishing, or multi-vessel production runs where buying by the gallon significantly reduces per-unit cost. It’s also the preferred choice for customers doing repeated multi-coat barrier coat systems on larger hulls. Pair with the West System 30625 Large Capacity 306 Metering Pump for accurate 5:1 resin-to-hardener ratios at volume. Remind customers that a UV-protective topcoat is still required for any exterior application. Note: this product is classified as hazardous material — confirm shipping eligibility with the customer’s location before completing the order.
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.