Why DAYA? Your Stone Resin Shower Tray Manufacturer | DAYA

---

Choosing a shower tray manufacturer is a supply-chain decision disguised as a product decision. The tray itself is deceptively simple — a cast composite panel with a fall and a drain. What you are actually buying is the factory behind it: whether the moulds are cut in-house, whether the cure schedule is disciplined enough that tray number 4,000 this month is as flat as tray number 40, and whether the export team knows what a customs office in your market needs to see on a label.

This page is the direct answer to that question. DAYA has manufactured stone resin bathroom products for 23 years, across two factories totalling 48,000 m², shipping to 60 countries. Below is what that actually means in practice — the material, the process, the OEM programme, and the way we work with buyers — so you can judge the factory, not just the catalogue.

23 Years, Two Factories, One Product Category

Focus is a manufacturing strategy. DAYA's production is concentrated in Shantou, Guangdong — the company's home and head office on the coast of southern China — and Huai'an, Jiangsu, the second plant in the country's east. Together they run 24,000 pieces per month, a capacity figure that matters to buyers for a specific reason: production slots for your peak season are scheduled against real line time, not best intentions.

Three decades would make us older; one factory would make us simpler. What 23 years and two plants actually deliver is redundancy and rhythm. When a pre-holiday rush fills one plant's calendar, the other absorbs the overflow — the same composite, the same process, the same QC gates. And because the company has shipped to 60 countries, the export mechanics that stall first-time importers — documentation formats, carton markings, container planning — are routine here rather than discoveries.

What We Manufacture: Stone Resin, Done Properly

DAYA's trays are cast in stone resin composite, and the formulation is published rather than hinted at: 72% calcium carbonate and 21% unsaturated polyester resin by mass, sealed under a gelcoat surface layer, with curing and catalyst agents completing the chemistry. Why these numbers deserve your attention:

• Dimensional stability. Mineral-heavy composite does not flex or spring the way thin acrylic-capped alternatives do, which is what keeps a 1400 mm tray flat across its span ten years after installation.
• Surface behaviour. The gelcoat layer is what you actually touch: non-porous, easy to clean, resistant to yellowing, with anti-slip and antibacterial performance built into the surface rather than sprayed on as an afterthought.
• No radiation, no cracking, one-piece casting. The composite is inert, and every tray leaves the line as a single cast piece — no joined seams, because seams are where water finds its way out.

The catalogue spans 17+ series — F, I, J, K, L, M, N, O, P, Q, S, T, V, FP, FQ, G, plus the marble-veined Marble F and Marble L lines — sharing a size matrix that runs from compact 70 cm formats to a 2000 × 1000 mm one-piece flagship, with thickness options of 2.5 cm and 3 cm. Colours run from White through Beige, Light Gray and Dark Gray to Black. Browse the full shower tray range, the flagship Series F, or the veined Series Marble L to see the breadth.

The formulation, read like an engineer

Why publish numbers like 72 and 21? Because composite behaviour is arithmetic before it is marketing. Calcium carbonate is the structural mineral: at 72% of mass it gives the tray its rigidity and its stone-like density — the heft that says "quality" the moment a fitter lifts it off the pallet, and the dimensional calm that keeps large formats flat through decades of thermal cycling. Unsaturated polyester resin at 21% is the binding system: it wets and locks the mineral particles into a single cast body, and its cure chemistry — time, temperature, catalyst — is what the oven stage of the process is calibrated around. The remaining fraction is where the performance lives at the surface: gelcoat for colour and stain resistance, curing and catalyst agents to drive the reaction to completion. Change the ratios and you change the failure modes — more resin and the tray flexes and yellows; more mineral and it gets brittle. The published ratio is a promise that the recipe is stable, batch after batch, which is the real meaning of "consistency" when the tray arrives three containers into your programme.

Inside the Factory: The Seven-Step Process

Every DAYA tray, standard or custom, passes through the same seven steps. They are worth walking through, because each one is a quality decision that never reaches the buyer's eye until years later.

1. Mould preparation. Each cast begins with the mould: cleaned, inspected, and release-coated. A compromised mould surface telegraphs itself onto every tray it produces, which is why this "boring" first step is treated as a gate, not a formality. For a buyer, this step is why tray number 400 looks identical to tray number 4,000: the surface that shapes your product is reset to standard before every cast, not when someone notices a problem.

2. Gelcoat spraying. The gelcoat surface layer is sprayed into the mould and carried into the industrial oven. This layer becomes the working surface of the tray — the part that resists staining, holds its colour, and takes the daily abrasion of feet and cleaning products. Buyers testing samples should scratch-test the gelcoat deliberately — this layer is the entire service life of the surface, and its thickness here is set before the composite is ever poured.

3. Resin injection. The mineral-and-resin composite is injected into the closed mould, filling evenly around the engineered fall toward the drain position. Closed casting is what allows one-piece trays at 2000 mm without weak joints. Closed-mould injection is also why DAYA can quote one-piece trays at 2000 mm where layered or joined construction would put a seam directly under the standing zone.

4. Trimming. Fresh from the mould, each tray is trimmed to its finished geometry — edges squared, overflow positions opened, waste cut-outs finished. Trim quality shows up in installation time: a cleanly trimmed edge sits flush against tile and glass channels without the fitter trimming or shimming on site.

5. Polishing and waxing. Surfaces and edges are polished and waxed to the finished standard. This is where the "smooth, rounded edges, easy to clean" character is physically created. Run a hand across a finished edge and you can feel the difference this step makes — and on site, that same finish is what lets sealant lines go down clean the first time.

6. Inspection (QC). A dedicated inspection step checks each tray for deformation — the specific defect that plague improperly cured composite — alongside surface and dimensional checks. It exists as a named step in the flow, not a spot-check. Ask to see this station on a factory visit or video audit: a deformation-inspection bench with actual trays on it is the single most persuasive thing a composite factory can show you.

7. Packaging. Trays are packed for export — into your printed cartons if you are an OEM client, with labelling matched to your market's requirements. Packaging is specified with the buyer, not for them — export carton spec, stacking marks and container loading plan are all quotable items, settled before production rather than argued after shipping.

OEM and Private Label: Built for Your Brand

Roughly speaking, two kinds of buyers read this page: those buying trays, and those building a brand around them. For the second group, the OEM programme is the reason to stay.

The service stack includes printed cartons carrying your logo, laser-etched logos on the tray surface itself, custom label design (artwork accepted in AI/PSD/PDF/JPG/PNG), installation manuals customised from templates, and installation and repair video support. Every series ships with a launch asset pack — 10 product photographs and 10 scene renders — so your product page can go live in the week your container lands.

Custom dimensions follow a three-step flow: refined drawings, mould making, sample approval — with a minimum order quantity of 18 pieces that keeps custom viable for mid-size programmes. The full buyer's checklist for that process — mould ownership, tolerances, freight protection, remote factory verification — lives in our custom shower tray manufacturer guide.

Quality, Certification and Compliance

Quality claims are cheap; process evidence is not. The seven-step flow above is the first half of DAYA's quality story — the named deformation inspection at step six is the second half, and it is the step most often skipped at factories competing on price alone.

On certification: documentation for the standards relevant to your market — including CE marking references — is available on request, and we recommend asking early so the paperwork travels with the goods rather than chasing them. Requirements differ by market, and part of the export routine here is matching documents to destination. For compliance-critical programmes (public sector, hospitality chains), raise the requirements in the first enquiry and the answers come back with the quotation.

Who We Supply

Sixty countries is a statistic until you break it into the shapes of the businesses behind it:

• Distributors and wholesalers running private-label ranges — the OEM stack exists for them, and the 18-piece MOQ exists so a regional programme can start without a container-scale bet. A typical programme: a 12-SKU private-label range in three colours, 200–400 units per replenishment cycle, cartons in their brand, launch renders supplied so the webshop goes live before the container clears customs.
• Contractors and fit-out companies working to fixed site conditions — immovable waste positions, off-square recesses — who use the custom flow the way a joiner uses a workshop. A typical project: a 40-room refurbishment where every bathroom has the same 40 cm offset waste the original builder left behind — one custom mould, 40 identical trays, zero on-site improvisation.
• Hospitality and property programmes, where tray counts run into hundreds and delivery windows matter more than unit price; capacity across two plants is what keeps those windows honest. A typical window: a resort refit between seasons, where 300 trays must land, clear customs and be installed inside a nine-week closure. Capacity and documentation speed are the whole contract.
• Bathroom brands who need a manufacturer, not a competitor — DAYA builds under your label; your market relationship stays yours. A typical relationship: a European brand with its own design language that needs a factory fluent in it — laser-etched logos, brand-manual-compliant packaging, and silence about whose mould it originally was.

A note on what we don't do: we don't sell your mould, your dimension, or your programme to the next enquiry that walks in. Ownership terms are fixed in writing before tooling begins — which is how a 23-year export business stays welcome in 60 of them.

Manufacturer or Trader? Why the Distinction Decides Your Price

A uncomfortable share of "shower tray manufacturers" in export search results are trading companies with a website — and telling them apart before the first deposit is a skill worth learning. The tests are simple, and DAYA passes all of them, which is partly why this page exists in this much detail.

Ask what happens inside the building. A factory describes processes: mould rooms, spray booths, ovens, trim stations, inspection benches — the way Section 3 above does, because someone here watches those steps daily. A trader describes products and prices, and answers process questions with "the factory can probably do that." The vocabulary difference is audible on the first call.

Ask for a live floor walk. Not a showroom — the casting line, the oven, the QC bench, timestamped. Factories say yes easily because the floor is the asset; intermediaries deflect to catalogues and "arrange some samples." Section 5.2 of our custom guide gives you the full remote-audit script either way.

Check the business scope, not the badge. Registration documents, export history in your product category, and whether mould-making appears anywhere in the company's actual capability list. A trader can print "manufacturer" on a business card; the capability trail is harder to fake.

The price consequence is direct: an intermediary inserts a margin and a telephone-game between you and the mould. Every requirement you phrase passes through a translation layer, and every quality exception becomes a negotiation between two parties who both blame the factory. Working from the mould outward — as this page has tried to show — removes that layer, and with it a surprising percentage of the total project risk.

Working With DAYA

The working rhythm is four moves. First, the enquiry — via the contact page, with drawings if the project is custom, target sizes and quantities if it is not. Second, the quotation — specification, dates, and certification documents for your market, in writing. Third, samples — production-line samples for fitment testing, because a tray is judged under tile lines and against glass channels, not in photographs. Fourth, production and export — scheduled against live line capacity, packed to your branding, and shipped with the documentation your customs office expects.

If your project fits a standard size, the fastest path is the size matrix in our sizes guide — pick the format, confirm the quote, done. If it doesn't, the custom flow is a normal order here, not an exception.

FAQ

What makes DAYA different from other shower tray manufacturers? Three verifiable things: a published material formulation (72% calcium carbonate, 21% unsaturated polyester resin, gelcoat finish), a named seven-step production process with deformation inspection as a formal QC gate, and 23 years of export manufacturing now running 24,000 pieces per month across two factories. Claims are cheap; these are checkable.

What is the minimum order quantity? 18 pieces — deliberately set so regional distributors and mid-size hospitality programmes can access custom dimensions without container-scale commitments. Standard-size orders at volume follow normal wholesale tiers.

Can DAYA produce my own design and dimensions? Yes — the custom flow runs refined drawings → in-house mould making → production-mould sample approval. Ownership and exclusivity terms for your mould are fixed in writing before tooling begins. Details in the custom manufacturer guide.

Do you support private-label branding? As standard practice: printed cartons, laser-etched logos, custom labels from your AI/PSD/PDF/JPG/PNG artwork, customised installation manuals, video support, and a per-series launch asset pack (10 product photos + 10 scene renders).

Which markets does DAYA export to? DAYA products ship to 60 countries, and export documentation is routine rather than improvised. Certification paperwork for your destination market is confirmed with the quotation — ask early so it travels with the goods.