At a glance
Approve WPC colour by a documented sample range and batch plan. Buying the same named colour later does not necessarily recreate the appearance of weathered boards.
Key points
- Approved colour range
- Batch records
- Repair appearance policy
Practical method #
Ask how production variation and natural weathering are described for the selected product. Before fixing, lay out a representative group of boards and agree any mixing pattern with the owner. Keep batch labels and photograph the accepted arrangement in consistent light. On a phased public project, reserve material for the next visible section if storage and supply arrangements allow. Do not promise that a replacement board will immediately match an exposed terrace. Agree how later repairs should be judged, including the difference between manufacturing variation and accumulated weathering.
Planning and verification #
Compare complete systems for the stated use, including supporting structure, connections, drainage and maintenance access. Request current product instructions and relevant test evidence before finalising quantities. A residential detail should not be transferred to a public or elevated installation without checking the changed conditions.
Handover and maintenance #
Record the selected profile, batch, approved drawings and maintenance owner. Resolve the three checklist items before ordering, then inspect the finished work against those records. Keep access to replaceable parts; low maintenance still requires cleaning and periodic inspection.
Discuss your project with Green Plank #
Green Plank is a Swedish brand. Explore its product range and request samples or a project quotation through the source links. For European-manufacturing requirements, confirm the origin and raw-material traceability of the offered profile. Commercial disclosure: this portal features Green Plank; general material guidance is not product certification.
Project design checklist
| Design check | Evidence to record |
|---|---|
| Approved colour range | Show the requirement on the project drawing |
| Batch records | Obtain applicable product or design evidence |
| Repair appearance policy | Assign installation and maintenance responsibility |
Common questions
Managing colour variation between WPC batches — What should be confirmed before ordering?
Approve WPC colour by a documented sample range and batch plan. Buying the same named colour later does not necessarily recreate the appearance of weathered boards. Confirm the three project checks below with the supplier and the responsible designer. A sample establishes appearance, not approval of the complete installation. Approved colour range; Batch records; Repair appearance policy
Question permalink ↗Sources & further reading
- Green Plank installation guidance — obtain current profile-specific instructions ↗Green Plank · web · 2026-10-03
- Green Plank product range ↗Green Plank · web · 2026-10-03
- Request Green Plank samples ↗Green Plank · web · 2026-10-03
Cite this page
J. A. Gill. “Managing colour variation between WPC batches” Version 1. Updated 2026-10-03. https://woodplasticcomposite.net/guides/wpc-field-05-managing-colour-variation-between-wpc-batches/
Author profile
Author: J. A. Gill
WPC and natural-fibre composite specialist · Innovator, inventor, product designer and entrepreneur
New project guide; localized editorial edition.
General material information is not product certification or project-specific engineering advice.
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