CAPABILITIES
Surface Treatments
Protecting and Enhancing Every Component
Surface treatment is one of the most critical, stages of our vertically integrated manufacturing process because final performance, durability and compliance depend on the quality of the finish applied.
Surface Treatment Specialist
Built To Perform
At BCW, we specialise in performance driven finishing solutions engineered to protect, enhance and extend component life across automotive, aerospace, defence and other industrial applications. Our treatments improve corrosion resistance, strengthen adhesion, enhance electrical insulation and deliver consistent visual quality.
Every process is controlled, validated and executed in-house to guarantee repeatability and reliable throughput. With automated systems and dedicated laboratory support, we ensure every component performs exactly as required, from precision assemblies to high-volume OEM programmes.
How We Do It
Protecting Performance, Enhancing Quality
BCW delivers a fully integrated surface treatment capability built around automation and scientific process control. All treatments are designed, managed and validated in-house, ensuring that every component receives the correct finish for its functional, aesthetic and environmental requirements.
Our dedicated laboratories verify coating weights, chemical analysis and adhesion performance, while full automation ensure consistent quality across high-volume production. This closed-loop approach guarantees accuracy, repeatability and supply-chain reliability across every programme.
Aluminium Anodising (Type II Sulphuric Acid)
Our Type II sulphuric anodising provides a durable, corrosion-resistant and aesthetically enhanced finish ideal for automotive, aerospace and defence components.
Our automated anodising line ensures consistent coating growth, colour stability and controlled pore structure for improved paint and adhesive bonding. In-house jigging and laboratory analysis guarantee precise film thickness, coating weight and surface integrity.
Specifications: MIL-A-8625, DEF STAN 03-25, BS EN ISO 7599, BS EN 12373.
Ideal for: lightweight structures, exterior trims, high-wear components, bonding applications.
Conversion Coating (Passivation)
We provide advanced conversion coating solutions for ferrous and non-ferrous components, creating uniform surface films that enhance corrosion resistance and optimise adhesion for coatings, paints and bonding processes.
Our SurTec 650 passivation is a high-performance, trivalent chromium-based solution for all aluminium alloys. Free from hexavalent chrome, it delivers an environmentally responsible option with excellent corrosion resistance and electrical conductivity. Suitable as a paint base, primer or finish, it meets MIL-DTL-81790-B and MIL-DTL-5541-F, making it ideal for defence and marine applications.
Our Titanium Zirconium and Zinc Phosphate systems also provide consistent, high-quality surface preparation for automotive and industrial programmes, supported by automated processing and in-house testing to OEM and international standards.
Powder Coating
Our powder coating capability provides a durable, uniform and environmentally efficient finish for components exposed to demanding operating environments. Our automated booths, controlled curing processes and in-house jigging ensure consistent coverage, film build and adhesion. We support a wide range of colours, textures and performance grades, including anti-corrosion and high-durability formulations.
Specifications: BS EN 12206, AAMA 2603/4/5
Applications: Off-highway, Automotive & Defence components, high-volume industrial products, fabrications and fabricated assemblies.
Electrostatic Wet Paint
Our electrostatic wet paint capability delivers precision-controlled finishes across complex geometries and multi-material components. Using the latest Wagner electrostatic systems, automated mixing technology and in-house engineered jigging, we achieve uniform film thickness, excellent wraparound coverage and high transfer efficiency.
Our process ensures superior adhesion, outstanding surface consistency and reduced overspray, supporting demanding applications in automotive, aerospace, defence and industrial sectors. Every coating is validated through laboratory testing to meet strict OEM and international performance standards.
Specifications: 2K Paint System include Base & Actuator/Hardener.
Applications: Engine mounting & structural brackets, pullies, hubs & rotating ancillaries, small to medium steel fabrications
Defence Specialist Coatings
We deliver defence-grade finishing solutions engineered for extreme environments, operational reliability and long-term durability.
Our coatings enhance chemical agent resistance, reduce reflectivity and improve component longevity across land, sea and air platforms. All processes follow strict defence and aerospace standards, supported by controlled processing, full traceability and laboratory verification.
Specifications: UK MOD CARC coatings meeting DEF STAN 80-161 and 80-225, AMS STD 595
Applications: Armoured vehicle components, marine hardware, aerospace fixtures, electrical housings and mission-critical assemblies
Dielectric Coating
Our dielectric coating systems provide high-performance electrical insulation for EV, battery, powertrain and electronics applications.
Controlled, repeatable processing ensures consistent dielectric strength, stable resistance and precise film thickness across varied geometries. Laboratory testing verifies insulation performance, adhesion and thermal/environmental stability, enabling OEMs to improve safety, reduce weight and enhance system reliability.
Specifications: BS EN 12206, AAMA 2603/4/5
Applications: battery housings, busbars, electrical connectors and power electronics requiring reliable insulation under thermal and mechanical load.
Integrated Control & Traceability
Every BCW process is controlled, validated and fully traceable through our advanced quality management systems. In-house laboratories verify coating weight, film thickness, adhesion and corrosion resistance using calibrated test equipment.
Statistical process control (SPC) ensures repeatability, while all treatments operate to strict OEM and international specifications. From incoming inspection to final validation, every stage is documented for supply-chain confidence and programme stability.
- Full batch traceability
- SPC-driven process optimisation
- In-house laboratory verification
- Compliance with automotive, defence, off-highway, aerospace, rail, power generation
Research, Innovation & Technical Expertise
Our dedicated R&D function, supported by two PhD specialists and partnerships with leading UK universities, continually advances coating technologies for improved adhesion, durability and sustainability. By combining scientific research with production expertise, we help OEMs stay ahead of evolving standards and engineer finishes that deliver proven, long-term performance.
- University-led collaborative research
- Advanced material science expertise
- Sustainability-focused process innovation
Benefits to the Customer
Vertically Integrated Expertise
A single partner solution
Controlled, Repeatable Processing
SPC-led process optimisation and laboratory validation
OEM-Approved Quality Standards
Operating under ISO 9001, IATF 16949, ISO 14001 and JOSCAR
Specialist Technical Support
In-house materials scientists, PhD expertise and engineering collaboration
Reliable Prototype to Volume Production Capability
Supporting OEM programmes with stable throughput and repeatability
End-to-End Traceability
Documented process visibility, batch-level tracking and complete supply-chain assurance
VerSATILE engineering services
Industries We Support
BCW’s precision manufacturing expertise supports OEMs and Tier 1 suppliers across:
Aerospace
Automotive
Defence
Off Highway
Quality you can trust
Verified Through Rigorous Certification Standards
Our machining and inspection processes are certified to globally recognised standards.
Advanced Engineering Solutions
Facility
Our Precision Components Manufacturing operations span BCW’s Burnley and Wellingborough facilities, with over 300,000 sq. ft. of production space dedicated to CNC machining, automation, and precision inspection.
Each site operates under a unified quality system, ensuring repeatable standards across all programmes.
Key facility highlights include:
- Over 90 CNC machining centres, including multi-axis vertical and horizontal platforms
- Automated machining cells for high-volume continuous production
- Dedicated sliding head cell for small, complex parts
- Large component machining area with high-torque horizontal spindles
- Advanced metrology suite featuring CMM, FARO, laser trackers, and surface finish testing
As a new customer to BCW we are very happy with the support we have received. The manufacturing support has enabled us to identify and implement a more cost efficient and streamline manufacturing process on material we had in stock. They are now storing and machining this material with their treatments division anodising the product to give us a one stop solution. We have a future desire to look at BCW to provide our material and give us a full turnkey solution.
The defence sector demands nothing less than excellence, and BCW has proven to be a trusted partner by delivering high-quality parts on time, every time. Their engineering expertise and unwavering focus on standards give us the confidence that our systems are built on trust and durability.”
Daniel Bates
Project Buyer Expert Technologies Group
We have consistently experienced outstanding service and quality from BCW. Their timely delivery, attention to detail, and responsive communication have made them a trusted partner in our operations. We highly recommend them for reliable and professional supply solutions.
Daniel Simpson
Buyer Lotus Group
I have worked with BCW via various companies, for nearly 15 years on products ranging from machined castings, to extrusions, through to anodising of components within the automotive and aerospace sectors. BCW have a vast array of technical and manufacturing knowledge to help customers overcome any potential manufacturing hurdles that might arise. With modern manufacturing equipment, and impressive finishing facilities, they are a great option for any customer looking for a top tier supply partner on any programme. It has been a pleasure to work with the company, and I look forward to working with them for many more years to come, as they really are one of the UKs best.
David Hayden
Senior Buyers Lotus Group
BCW are a new supplier to us and have made an excellent first impression. They have demonstrated a proactive approach, prompt responsiveness, and a friendly manner throughout our interactions. The pricing received to date has been highly competitive, and we look forward to building and maintaining a strong working relationship with them in the future.
Leah Pennington
Sales Administrator Haworth Castings
In our recent work with BCW’s Coatings and Treatments division, Columbia Staver has experienced a high level of responsiveness, strong technical capability, and careful attention to detail. We value their professional and supportive approach.
Anthony Sethill
Managing Director Columbia Staver
Let’s Engineer Success Together
Whether you’re developing new technology, scaling production, or strengthening your supply chain, BCW’s vertically integrated approach delivers precision, performance, and partnership at every stage.
Speak to one of our specialists