OEM Surf Fins | CNC G10 Fins | Custom Fiberglass Fins | Silicone Mold Casting | Daywin

Source Factory Since 2008

The Source Factory for Custom Fiberglass & G10 Fins.

Q: What is the MOQ for custom fiberglass fins?

For CNC cut G10/GFK fins, there are zero tooling costs and highly flexible MOQs. For RTM honeycomb fins, the MOQ is typically 50 sets per design. This enables you to test the market with new graphics or materials before committing to larger volumes.

Q: What is the difference between CNC G10 and RTM Honeycomb?

CNC G10 involves digital routing of solid, cured fiberglass panels, resulting in bulletproof stiffness and fast iteration without mold fees. RTM Honeycomb utilizes silicone molds and resin injection over a hex-core, producing a significantly lighter fin with a natural, snappy flex ideal for high-performance surfing.

Two Production Paths. One Quality Standard.

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CNC Series (G10/GFK) Digital cutting from cured panels. No Mold Fees. Perfect for performance models and quick iterations.

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Molded Series (Honeycomb) Silicone tooling for lightweight cores. Low Cost & Fast. Ideal for volume production.

Custom CNC G10 and RTM Honeycomb Surf Fins

G10 Premium Laminate Texture

Honeycomb Core Backlit Hex Grid

Factory Tour

See The Factory Reality.

Don't just take our word. Watch our CNC cutters milling solid G10, and our craftsmen hand-polishing fins to a mirror finish. This is where precision meets craftsmanship.

CNC cutting G10 panels — dust flying, precision cutting

Hand polishing — wheel spinning, instant shine

Silicone demolding — honeycomb fin revealed

Watch Factory Process 30 seconds • No audio

CNC Machining Process for G10 Surfboard Fins

⚙️ CNC Process

Digital cutting from cured G10/GFK panels

Track A

CNC Machined (G10/Solid)

We cut directly from cured fiberglass and G10 panels using precision CNC routers. No molds, no tooling fees, no minimum shape commitments. Just upload your design file and we start cutting.

💰

Zero Tooling Cost No mold investment required. Your only cost is per-unit production. Perfect for testing new shapes without financial risk.

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Instant Design Changes Want to change the rake by 1mm? We just update the code. No new molds, no delays. Iterate at the speed of thought.

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Performance-Grade Materials G10 offers bulletproof stiffness for kiteboards. Solid GFK delivers maximum drive for longboards and retro twins.

Track B

Silicone Molded (Honeycomb)

We use flexible silicone molds for Resin Transfer Molding (RTM), creating lightweight honeycomb cores with consistent quality. This process delivers the visual appeal and performance that modern surfers demand.

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90% Lower Tooling Cost Silicone molds cost a fraction of metal molds. Start your custom shape for under $100 instead of $1,000+.

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1-2 Weeks Production Time Low-cost multi-molding enables delivery of 100 sets in just 1-2 weeks. Significantly faster than metal molds.

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Perfect for Testing Launch limited edition graphics or test new lightweight designs without betting the farm. Fail fast, learn cheap, scale winners.

🔶 RTM Process

Flexible silicone mold with honeycomb fin curing

Material Library

Engineered Materials.

Four core materials, each optimized for specific performance and price positioning.

G10

G10 Premium

Bulletproof stiffness with high-density laminate. The standard for kiteboards and wakeboards.

⚙️ CNC Cut

Hex-Core

Ultralight honeycomb structure with natural flex. Perfect for everyday surfing.

🔶 Silicone Molded

Carbon

Carbon Fiber

Strategic carbon inlay for instant response. Premium price point for pro-level.

🔶 Silicone Molded

Volan

Volan Glass

Vintage flex with distinctive green tint. Classic choice for longboards.

⚙️ CNC Cut

🎨 Water Transfer

🔍 Logo under clear coat

Branding Technology

"Invisible" Water Transfer Branding.

Forget surface stickers that peel and fade. We use professional Water Transfer Decals applied under the final clear coat — your logo becomes part of the fin itself.

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Seamless Integration The decal is encapsulated in resin. Completely smooth, no edge, no bump.

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Never Peels Off Protected by the clear coat layer, your branding survives wax, salt water, and years of use.

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Complex Graphics Supported Gradients, photos, fine details — anything you can print, we can transfer.

Quality Assurance

The "Click-In" Guarantee.

Loose fins mean returns and damaged reputation. We check every single fin base with standard box gauges — so your customers get that satisfying "click" every time.

Inspection

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0.1mm Tolerance on all fin bases

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100% Inspection rate — every fin checked

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FCS + Futures Both systems supported & tested

Value-Added Service

Retail-Ready Fin Sets.

Delivered in premium Zipper Fin Wallets — reusable, shelf-ready, and professional. No cheap velcro pouches.

Canvas/Mesh Wallet Fin Key Included SS Screws

Your customers expect a complete package. We deliver fin sets ready to hang on your shop wall — everything included, nothing extra to source.

✓

Premium Zipper Wallet Canvas or mesh construction. YKK zippers.

✓

Fin Key Included Standard hex key for immediate installation.

✓

Custom Branding Available Your logo on the wallet, hang tag, and packaging.

FAQ

Frequently Asked Questions

Clear answers to help you navigate custom surf hardware procurement.

🎯

What is the MOQ for custom fiberglass fins?

For CNC cut G10/GFK fins, there are zero tooling costs and highly flexible MOQs. For RTM honeycomb fins, the MOQ is typically 50 sets per design. This enables you to test the market with new graphics or materials before committing to larger volumes.

🏄

Do you manufacture leashes and traction pads as well?

Yes, we do. In addition to our premium fin collections, we produce high-quality leashes and traction pads in-house. This allows us to provide complete, color-coordinated hardware sets bundled directly from our factory to your shelf.

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Are your fins compatible with FCS and Futures boxes?

Absolutely. Our fins are precision-engineered to perfectly fit standard FCS (Dual Tab), Futures (Single Tab), and standard US center fin boxes. Every fin base undergoes 100% tolerance inspection to guarantee a secure, wobble-free fit.

⚖️

What is the difference between CNC G10 and RTM Honeycomb?

CNC G10 involves digital routing of solid, cured fiberglass panels, resulting in bulletproof stiffness and fast iteration without mold fees. RTM Honeycomb utilizes silicone molds and resin injection over a hex-core, producing a significantly lighter fin with a natural, snappy flex ideal for high-performance surfing.

Configure Your Custom Order.

Two production tracks, four materials, complete packaging solutions. Tell us what you need and we'll build a quote that makes sense for your business.