Textured Shower Tray Pattern Approval: Control Texture, Gloss and Drain Detail by Batch
Textured shower trays · Pattern approval · Production control
Short answer: Approve more than colour. A textured tray’s pattern scale, ridge definition, gloss distribution, drain transition, perimeter landing and mould wear can change the appearance and function. Use a full-size production master, limit samples and change-control triggers.
Map What the Texture Must Do
| Zone | Control | Reason |
|---|---|---|
| Walking field | Pattern identity, defects, cleanability and any exact-surface slip evidence | Main wet-use and visual area |
| Drain approach | Relief continuity, fall, cover clearance and no unintended dam | Water must reach the outlet |
| Perimeter/rim | Defined flat or seal-compatible landing zone | Enclosure profile, glass or seal interface |
| Cut edge where permitted | New edge finish and exposed construction | Appearance, moisture and warranty control |
| Logo/marking | Legibility without local pooling or weak section | Traceability and water path |
Use a Full-Size Master
A small coupon cannot show repeated pattern, long-range colour variation, drain transition or perimeter geometry. Approve at least one full-size production tray from the intended mould and process. Seal and label it with model, size, colour, mould/cavity, material batch and date.
Keep separate limit samples for the maximum acceptable colour, sheen, pinhole, pattern softening and local repair. The master should not become a damaged warehouse reference that everyone interprets differently.
Measure Only Where the Method Fits
ASTM terminology separates colour, gloss and texture. ISO 2813’s published scope is for non-textured coatings on plane, opaque substrates, so a single gloss-meter reading on a slate relief cannot represent the complete tray. If instrumental control is useful, define the valid measurement patches and correlate them with visual approval under fixed lighting.
Inspect Mould Wear and Repair
Pattern rounding, polished high spots, duplicated repair marks, resin build-up and drain-transition changes can develop gradually. Add a mould identity and maintenance history to batch records. After mould repair, produce a first-off tray and compare it with the full-size master before normal production resumes.
Connect Texture Approval to Performance Evidence
A change that appears minor can invalidate related evidence. If the tested surface supports a slip claim, confirm whether colour, coating, pattern depth, production method or supplier change falls within the report scope. If the texture near the drain changes, repeat water-flow and cleaning checks. If perimeter relief changes, recheck enclosure and seal compatibility.
Batch Release Checklist
- Product, colour, mould/cavity and batch identity confirmed.
- Full-size master and limit samples current.
- Lighting, distance, orientation and dry/wet condition fixed.
- Walking field, drain approach and perimeter inspected separately.
- Flat/interface zones measured to the product drawing.
- Any local repair identified and approved.
- Performance evidence reviewed after material or texture change.
- Shipment samples retained for the agreed period.
Related Wakebath Reading
- Shower Tray Sample Approval Pack
- Textured Does Not Automatically Mean Anti-Slip
- Shower Tray Support Is Model-Specific
Turn Texture Into a Controlled Specification
Send the tray drawing, target pattern, colour range, test evidence and intended enclosure interface. Wakebath can propose a master-sample and batch-release structure.
Request texture approval reviewPrimary References and Evidence Boundary
- BS EN 14527:2016+A1:2018: domestic shower-tray standard status and scope.
- ASTM E284: appearance terminology including colour, gloss and texture.
- ASTM D3134-15(2024): purchaser/seller procedure for setting colour and gloss tolerances.
- ISO 2813:2014: gloss method with a non-textured, plane-substrate scope.
- ISO 25178-73:2019: surface-texture terminology for defined material measures; not a shower-tray acceptance standard.
Evidence boundary: The cited appearance and texture standards do not set a universal tray pattern or tolerance. Product-specific masters, drawings and performance evidence remain necessary.