Surface Finishing & Treatments
UK specialists in anodising, powder coating, wet paint, plating, heat treatment, shot blasting and specialist industrial coatings.
Categories in this group
28 totalCoatings, plating, anodising and heat treatment
Surface Finishing & Treatments covers UK finishers and treatment specialists who apply protective, decorative or functional surfaces to engineered parts - from powder coating and wet paint to anodising, plating, heat treatment and specialist industrial coatings. Most buyers source finishing as a separate step after machining, fabrication or casting.
- You need a corrosion-resistant or decorative finish on machined or fabricated parts
- You need anodising, plating or specialist coatings to a defined standard or RAL colour
- You need heat treatment (hardening, tempering, normalising, stress relief) to a material spec
- You need shot blasting, bead blasting or surface preparation ahead of coating
- Capacity for your part size, weight and substrate
- Quality systems - ISO 9001, Nadcap for aerospace, IATF 16949 for automotive
- Process control - bath chemistry, salt-spray testing, coating thickness measurement
- Logistics - collection and delivery, jigging capability, batch turnaround
How to buy surface finishing & treatments
Surface finishing is a regulated, chemistry-driven process. Wrong supplier means wrong colour, wrong corrosion life or a failed regulatory audit.
- 01Define the finish to a standard
Reference BS EN ISO 1461 (galvanising), BS EN ISO 7599 (anodising), BS EN ISO 4042 (electroplating), or RAL number plus gloss for paint.
- 02State the performance target
Salt-spray hours, coating thickness, adhesion class, conductivity, and any sector requirements (Qualicoat, GSB, Cadmium-free).
- 03Plan masking and racking
Threaded holes, mating surfaces and electrical contacts often need masking. Specify on the drawing, not in an email.
- 04Agree inspection and reporting
Coating thickness reports, salt-spray test certificates, batch traceability and rework process before first lot.
- 05Confirm REACH, CoSHH and ESG position
Hexavalent chrome, cadmium and certain solvents are restricted. Confirm the supplier's chemistry roadmap aligns with yours.
Categories in this group
Browse one sub-category at a time - 28 categories across 1 section.
Services offered in Surface Finishing & Treatments
The service lines suppliers in this category typically deliver.
Standards and accreditations to look for
These are the third-party certifications buyers commonly ask suppliers in this category to hold. Industrial Connected Verification is a separate check of company identity and credentials, and approved certifications uploaded by a supplier also contribute towards their Trust Score.
Baseline quality system across UK finishers.
Aerospace approval for chemical processing and coatings.
Automotive quality system for finishing.
Architectural powder coat quality marks.
Anodic oxidation of aluminium standard.
Environmental management for plating effluent and paint process.
Lead times in Surface Finishing & Treatments
A realistic starting point for planning. Actual lead times depend on volume, material availability, finishing, inspection requirements and current supplier load. Confirm in writing on every quote.
Typically 3 to 10 working days for stocked colours and standard processes; longer for specialist coatings, large batches or full re-work.
How to vet a surface finishing & treatments supplier
Run through this checklist with any candidate supplier before awarding work. If they cannot evidence an item, treat it as a risk to manage, not an assumption to ignore.
- Process accreditation (Qualicoat, GSB International, Nadcap for aerospace).
- Coating thickness, adhesion and salt-spray testing in-house.
- Pre-treatment chemistry suited to your substrate (steel, aluminium, zinc).
- Hanging and racking design support for awkward parts.
- Documented effluent treatment and environmental permit.
- Quality system certified and audited (ISO 9001 minimum, sector standards where required).
- Two reference customers in your sector willing to take a call.
- Insurance, IP and NDA position confirmed in writing before sharing drawings or data.
- Commercial terms agreed: payment terms, currency, retention, delivery Incoterms.
Common mistakes buyers make in Surface Finishing & Treatments
The avoidable issues we see most often, with the one-line fix that prevents them.
Kinds of suppliers in this category
The supplier profiles you will typically meet when sourcing in Surface Finishing & Treatments.
High-volume coating shops with batch and conveyorised plant.
Sulphuric, hard and decorative anodising lines, with masking and racking.
Zinc, nickel, chrome and tin plating to defined standards.
Vacuum, atmosphere and induction treatment for steels and alloys.
Nadcap CP shops handling primer, paint and chemical processes.
Example projects in Surface Finishing & Treatments
Representative briefs and scopes buyers post in this category.
Buyer & supplier guidance
- Part drawings or 3D model with finished areas marked
- Substrate material and pre-finish condition
- Required finish standard (RAL, BS EN ISO 7599, AMS, etc.) and coating thickness
- Batch size, frequency and any masking or jigging requirements
Typically 3 to 10 working days for stocked colours and standard processes; longer for specialist coatings, large batches or full re-work.
- Free-issue parts vs. collection-and-return logistics
- Salt-spray or coating-thickness reporting requirements
- Pre-treatment specification (blast profile, degrease, etch)
- Re-work and re-coat policy for rejects
- List processes by substrate (steel, aluminium, stainless, plastic, etc.)
- State maximum part size, weight and batch capacity
- Show example finishes with thickness and standard reference
- Cover logistics: collection radius, turnaround, jig design service
- Available coatings, colours and standards
- Pre-treatment and surface preparation processes
- Measurement and reporting (thickness, salt-spray, adhesion)
- Masking, jigging and rework capability
Buyer FAQs for Surface Finishing & Treatments
It depends on the substrate and environment. Zinc plating with a clear or yellow passivate is the workhorse for steel parts in mild environments; for harsher conditions, look at Dacromet, hot-dip galvanising or specialist coatings.
Anodising builds an oxide layer on aluminium (decorative or hard-wearing); powder coating is a sprayed and cured polymer film. They serve different needs - anodising is conductive-safe, powder coating offers a wider colour range.
Many UK machinists and fabricators have preferred finishing partners. You can post a project for the finished part and let the supplier subcontract, or separate them if you have a nominated finisher.