Composite Material, Applied to Exterior Wall Cladding Better Than It Has Been Before.

The Case for Composite

Exterior Cladding Has Always Forced a Choice. Composite Is the First Material That Does Not.

Material selection on a facade is really three decisions made at once: what the surface looks like in five years, what holds the board straight across a 6 m elevation, and how many labour hours it takes to fix every square metre. Timber, PVC, aluminium and first-generation WPC each answer one of those and concede the other two. Here is where the composite route stands on each.

1. The surface is the board, not a film on it.

The weakness of a printed or laminated facade is that the decorative layer and the structural layer are two different materials, bonded at an interface. Moisture and heat cycles work on that interface. FlowVeins cures the ASA surface and the wood grain together in the molecular crystal curing stage, so there is no film to delaminate. The grain is in the material.

2. The core is dense enough to span a real elevation.

A facade board is a beam. FlowVeins runs a 50% PVC / 25% wood-fibre core in two sections — FV01 at 176 × 15 mm and FV02 at 222 × 25 mm — so a design team can choose the section that matches the joist spacing the elevation actually allows, rather than the other way round.

3. The fixing is drilled at the factory, not on the scaffold.

Hidden-clip systems move the cost off the face of the wall and onto the installer's time. The FlowVeins male end carries pre-punched screw slots formed during extrusion, so the fixer drives straight into the batten through a hole that is already square, already at the right depth, and already in the same place on every board.

What FlowVeins Actually Is.

FlowVeins is a composite exterior wall cladding range developed by MexyTech, combining a fourth-generation WPC base with a composite ASA surface. It is offered in two profiles, six colours, and a 2.9 m standard length, with customized lengths available.

The name of the range matters less than the numbers behind it. What a specifier needs on file is the board section, the surface build-up, the fixing method, the tested performance, and the certificate scope — because those are the items a submittal is actually reviewed against.

Everything on this page is written to be quotable in that review. Where a claim comes from a test report or a patent rather than from us, it is labelled as such. Where a figure is ours, it is labelled as ours.

Compare FV01 and FV02 Talk About Your Project

Fourth-Generation WPC with a Composite ASA Surface.

Composite ASA Surface

WPC Core

Interlocking edge — hides the fixing line

Material Formulation

• 50% PVC
• 25% Wood Fiber / Plant Fiber
• 15% Calcium Carbonate Filler
• 10% Additives
• ASA Outer Layer

The formulation below is the one we publish, because a specifier cannot judge a facade material from a colour chip. A 50%% PVC and 25%% wood-fibre base gives the board its stiffness and its resistance to standing water; the 15%% mineral filler and 10%% additive package control how it extrudes and how it ages. The ASA outer layer is what takes the sun.

The photograph opposite is the part of the build-up that drawings usually omit: the interlocking edge. It is the reason no fixing head is visible on a finished elevation, and the reason adjacent boards can move independently without opening a gap.

*Final material information should be reviewed against the selected profile and approved product documentation.

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Six Colors for Exterior Material Coordination.

Comparing colours across screen images, renders and site mock-ups is not a like-for-like comparison: grain direction, the angle of the light and the production batch all shift what the eye reads. Every one of the six colours is therefore supplied as a physical section of the FV01 or FV02 profile you are specifying, and the approved sample is the reference production is held to.

Pale OAK

Ash Silver

Golden Beech

Honey Teak

Smoke Grey

Coffee Walnut

Same profile, four of the six colours — compare them as physical sections, not as screen images.

Grain direction and light move the colour. Approve on a sample, not on a render.

Patented Fixing

The Male End Arrives Pre-Punched. That Is Where the Labour Disappears.

On a clip-fixed facade, every board is placed, every clip is aligned, and every screw is driven — three operations per fixing point, all of them on a scaffold. The FlowVeins male end carries pre-punched screw slots formed during extrusion, and the structure is patented. The board is placed and the screw is driven through a slot that is already square. Fixing count does not change; operations per fixing do.

Manufacturer diagram: pre-punched male end, lightweight and robust. The 50% installation-cost figure is FlowVeins' own published claim.

What we need from the project to confirm the fixing detail: the wall build-up, the batten or joist layout, the elevation drawing with board direction, the cutting plan, and the required lengths. With those, we can return the fixing layout and a board schedule rather than a generic detail sheet.

Screw through the pre-punched slot

Male end, as delivered

Joist distance is governed by the selected section and the wind load at the site, and the pre-punched slot governs the batten position — so the two are read together against the final project drawings, not separately.

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Exterior Wall Cladding Questions.

What is FlowVeins exterior wall cladding?

FlowVeins is a composite exterior wall cladding range developed by MexyTech: a fourth-generation WPC core with a composite ASA surface, cured together by our molecular crystal process and fixed through a patented pre-punched male end. It is available in FV01 (176 × 15 mm flat) and FV02 (222 × 25 mm siding) profiles.

Which FlowVeins profiles are available?

There are two confirmed profiles: the FV01 (176 × 15 mm Flat design) and the FV02 (222 × 25 mm Siding design). Both are supplied with a 2.9 m standard length.

What colors are available?

FlowVeins exterior wall panels are available in six colors: Pale OAK, Ash Silver, Golden Beech, Honey Teak, Smoke Grey, and Coffee Walnut. Buyers should always confirm the final color choice using physical material samples.

How is FlowVeins installed?

The board is screwed to a batten or joist substructure through the pre-punched slots in the male end, with no clip at the fixing point and the fastening line concealed by the interlocking edge. Joist distance is set by the selected section (FV01 or FV02) and the site wind load. The final wall construction must still be verified against applicable local requirements and the project engineer's detailing.

Is exterior cladding the same as siding?

While the terms can overlap in the market, this page uses exterior wall cladding to describe our composite WPC panels designed for building facades. The final installation method and wall build-up cannot be judged by name alone and must be confirmed via product documentation.

Can I request a customized length?

Yes, customized length available. When inquiring, please provide your chosen profile, color, estimated quantity, and specific project requirements to confirm feasibility.

Do I need clips to install FlowVeins cladding?

No. The male end is pre-punched during extrusion, so the board is screwed directly to the batten through a formed slot and no separate clip is used at that fixing point. The structure is patented. FlowVeins publishes a 50% saving on installation costs for this method against a conventional clip-and-screw system; verify that against your own labour rates and site conditions before relying on it in a bill of quantities.

Is the wood grain a film or is it part of the material?

It is part of the material. Molecular crystal curing is our own process: the composite ASA surface and the grain are cured together rather than applied as a separate printed film or laminate, so there is no decorative layer that can lift at an edge. Always confirm the finish against the approved physical sample, since the signed sample is the production reference.

How do I request samples or a quote?

You can submit your project details through our Contact page forms or reach out directly via our official WhatsApp to discuss your WPC exterior wall cladding needs.

How long does the colour last outdoors?

The composite ASA surface is chosen because it holds colour under UV. FlowVeins documents that with accelerated ageing testing rather than with an adjective: ΔE*ab 2.7 after 3,000 h UVA-340 exposure, grey scale 4, tested to ASTM G154 (SGS report SDHL2407013318HI). Projected from that accelerated result, colour retention exceeds 20 years of outdoor exposure. That projection is a test-based estimate — the commercial warranty period is issued separately and is shorter by design.

What is your MOQ per colour?

MOQ is half a container per colour. The six standard colours — Pale Oak, Ash Silver, Golden Beech, Honey Teak, Smoke Grey and Coffee Walnut — can be combined within one container load, but each colour ordered must meet its own half-container minimum. Custom colours and custom grain patterns are quoted case by case: contact us with the target colour or pattern before ordering.

What is the normal production lead time?

Standard lead time is 30 days after order confirmation for standard colours. Custom colours, custom grain patterns and custom lengths must be confirmed before the production schedule is fixed. Container delivery is booked as part of the production schedule and export documentation is handled in-house.