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Material & Specification Overview
Co-extrusion capped composite can be built on top of different core formulations, so the table below describes the general structure and the most common specification range across our capped product family. Please confirm exact figures against the datasheet for your selected profile and core type, since cap thickness and core composition affect final dimensions and weight.
| Item | Detail |
| Structure | Two-layer co-extrusion: composite core + fused protective polymer cap (3-sided or 4-sided capping available) |
| Cap Thickness | Approx. 0.8mm - 1.5mm, depending on profile |
| Core Options | Standard PE wood composite, bamboo fiber composite, or rice husk composite |
| Formaldehyde Content | No added formaldehyde in either the core or cap layer |
| Environmental Certification | REACH-compliant formulation; FSC-sourced core fiber available on request |
| Standard Thickness Range | 21mm - 25mm |
| Standard Width Range | 135mm - 150mm |
| Standard Length | 2200mm / 2900mm / 3600mm |
| Weight (approx.) | 7.5 - 9.5 kg per linear meter |
| Surface Finish Options | Wood-grain embossed cap, brushed cap, matte or semi-gloss cap finish |
Product Photography
We provide genuine factory photography for every capped profile: a full board shot under natural light, a macro close-up showing the cap texture and grain detail, a cross-section cut showing the visible boundary between core and cap layer, an installed project photo, and export packaging photos so you can evaluate real color, gloss level, and pallet loading before ordering.
A quick note on tolerance: because the cap layer is applied in the same extrusion pass as the core, dimensional tolerances for capped profiles are held to the same standard as our uncapped boards - buyers should not expect looser tolerances just because there is an added layer, and our datasheets list tolerance ranges separately from nominal dimensions so you can build accurate installation drawings.
Minimum Order Quantity & Pricing Structure
Because the capping process adds an extra production step compared with uncapped composite, pricing for this line sits at a moderate premium over standard boards, though it remains volume-driven like the rest of our range. MOQ for a first trial order is typically 1 x 20ft container, and we can usually combine capped and uncapped profiles in the same trial container if you want a side-by-side comparison for your own showroom or client presentation.
| Order Volume | Pricing Tier |
| Sample pieces | Sample fee + courier, often credited toward first bulk order |
| 1 x 20ft container | Standard FOB pricing (capped premium applied over base core price) |
| 1 x 40ft HQ container | Discounted per-sqm pricing |
| Multiple containers / annual contract | Negotiated volume pricing plus priority production slot |
Quotations are typically given as FOB Ningbo or Shanghai, with CIF and DDP available once destination port and Incoterm are confirmed. Standard payment terms are 30% deposit by T/T with the balance paid against the copy of the Bill of Lading; L/C at sight can be discussed for larger, first-time buyers who need that structure for internal approval purposes. If your project budget is tight, we can also propose a hybrid layout using capped boards only on visible, high-wear surfaces and uncapped boards elsewhere to control overall material cost.
For buyers comparing several core-and-cap combinations at once, we can issue a single combined quotation covering multiple SKUs so your internal approval process only needs one document, and we are happy to hold indicative pricing for a reasonable period while your team finalizes the project specification.
OEM & Customization Options
Because the cap layer is the visible "face" of the finished board, most customization conversations for this line focus on the surface appearance rather than the structural core, though both are adjustable.
- Cap color & finish - choose from our standard capped color card, or request custom color matching against a Pantone/RAL reference for the cap layer specifically
- Cap coverage - 3-sided capping (cost-efficient, cap on top and both edges) or full 4-sided capping (maximum protection, including the underside)
- Core selection - pair the cap with a standard PE composite core, bamboo fiber core, or rice husk core depending on your cost and sustainability targets
- Branding - private label packaging, printed cartons, and embossed logos on the board end or surface are available
- Length cutting - boards can be cut to project-specific lengths to minimize job-site offcuts
- Packaging - shrink-wrap, carton, or export crate packaging depending on shipping method and destination climate
For a genuinely new cap texture or a brand-new profile shape, we typically request a technical drawing or physical reference sample, and we will confirm tooling cost, amortization terms, and sample lead time before committing to production.
We also keep records of previous custom cap-color approvals, so if you are matching a color used on an earlier project or by another supplier, send us the reference and we can usually tell you quickly whether it is already in our library or will need a fresh color-matching sample. For distributors managing several sub-brands, we can also produce the same core-and-cap combination under multiple separate packaging designs within a single production run, provided quantities per design meet a reasonable minimum.
Certification & Quality Control
Because the cap layer is specifically marketed on durability and low maintenance, buyers for this line tend to ask more pointed questions about long-term weathering performance, not just initial appearance.
| Certification / Test | Availability |
| REACH / RoHS compliance | Standard formulation compliant for both core and cap |
| FSC Chain of Custody (core fiber source) | Available on request |
| Third-party lab reports | UV/weathering (xenon-arc or QUV testing), water absorption, slip resistance, and cap adhesion/peel testing available (SGS/BV/Intertek) |
| Factory quality system | ISO 9001 factory management system |
Our internal QC process adds an extra checkpoint specific to this product: cap adhesion testing on sample sections from each production batch, in addition to the standard incoming raw material inspection, in-process dimensional checks, and pre-shipment sampling for thickness tolerance, straightness, and surface defects that we run across all product lines. We are also open to arranging a third-party pre-shipment inspection through your nominated agency, and can provide accelerated weathering test data from previous batches if your project specification requires documented long-term performance evidence before approval.
For buyers supplying into markets with specific fire-safety or building-code requirements, we can also advise on which additional third-party certifications are commonly requested for capped composite in that market, and connect you with a suitable testing lab if a certificate you need has not yet been obtained for a particular profile. Batch traceability records link each shipped order back to its production date and raw material batch, which is useful if a project ever needs after-the-fact quality documentation for a client or inspector.
Production Capacity & Lead Time
The co-extrusion process runs on dedicated capping lines, which are somewhat fewer in number than our standard single-layer extrusion lines, so lead times here run slightly longer than for uncapped composite of the same core type.
| Item | Detail |
| Monthly capacity | Dedicated co-extrusion lines; capacity generally lower than our standard single-layer lines given the added process step |
| Sample lead time | 5-8 working days for existing profile and color combinations |
| Standard order lead time | 20-30 days after deposit and color/spec confirmation |
| Custom mold or cap-color lead time | Additional 25-35 days for new tooling or a genuinely new cap formulation |
| Peak season note | Because this line runs on fewer lines than standard composite, we recommend confirming orders at least 4-6 weeks ahead of your installation date during Q1 (Chinese New Year) and Q3 peak booking periods |
We provide production progress updates at each key stage - core extrusion, cap application, and final cutting/packing - and can arrange video calls or live factory video during production for buyers who want visual confirmation before the order ships.
If your order needs to be split across multiple shipment dates to match a phased construction schedule, we can usually accommodate that at the planning stage rather than treating it as a change request later, and we will confirm a shipment calendar in writing once your production slot is booked. We are also glad to discuss expedited production for time-critical orders, understanding that this may involve a modest surcharge or a shift in queue priority relative to other confirmed orders.
Logistics & After-Sales Support
Capped boards ship using the same general process as our other composite lines, though we take slightly extra care with surface protection during handling since scuffing the cap layer is more visible than on a standard uncapped board.
- Shipping ports - orders typically go out via Ningbo or Shanghai port; FOB, CIF, or DDP quoting available depending on your preference
- Transit packaging - boards are individually film-wrapped or interleaved with protective sheeting before pallet stacking and shrink-wrap, with corner protectors to prevent surface scuffing during loading and long-distance sea freight
- Documentation - commercial invoice, packing list, bill of lading, and certificate of origin provided as standard; fumigation certificate and third-party inspection certificate available on request
- Damage/shortage claims - please photograph any container or surface damage at unloading before installation; verified manufacturing defects are handled through replacement stock or credit on the next order
- Installation guidance - installation manuals, recommended fixing systems, and cap-surface care instructions (cleaning agents to avoid, recommended cleaning method) are provided for your installation team
Our export team stays reachable by phone or WhatsApp through the full shipping and unloading window, not only up to the point of payment, and can help troubleshoot any on-site installation questions your crew runs into.
For buyers who prefer a single point of contact after the sale, we assign an account coordinator who stays with your order from confirmation through to final delivery confirmation, rather than routing you through a general inquiry line for follow-up questions. This tends to matter most in the weeks right after installation, when most surface-care questions actually come up.
Frequently Asked Questions
Q: Is the cap layer just a coating, and will it wear off over time?
A: No - the cap is fused to the core during extrusion rather than sprayed or glued on afterward, so it does not peel or wear away the way a surface coating can; normal outdoor use should not expose the underlying core.
Q: Is 3-sided or 4-sided capping better for my project?
A: 3-sided capping is more cost-efficient and covers the surfaces that see the most sun and foot traffic; 4-sided capping is worth the extra cost for applications with high ground moisture or where the board underside is exposed to splashback, such as poolside or marine decking.
Q: How does this compare in price to uncapped composite?
A: Capped composite typically carries a moderate price premium over the equivalent uncapped core, reflecting the extra production step; many buyers offset this by using capped boards only on visible surfaces and standard composite elsewhere.
Q: Can I get this with a bamboo fiber or rice husk core instead of standard PE composite?
A: Yes - the cap technology can be paired with our bamboo fiber composite or rice husk composite cores if you want the added durability of a cap layer combined with a specific sustainability story.
Q: Does the cap layer change how the board should be cleaned?
A: Yes, slightly - we recommend mild soap and water rather than abrasive cleaners or pressure washing at close range, and we provide a short care guide with every order to help protect the surface finish long-term.
