Towerfield’s unique combination of knowledge and expertise enabled us to become leaders with the ability to meet the ever-increasing demands of the aerospace industry. From our inception in 1984, our team has developed and with continuous investment into the latest technology, we are able to offer cost-effective, quality solutions for each of our customers. As one of the few treatment facilities that have a fully equipped solutions laboratory on-site, our technicians are able to constantly deliver the highest standards of treatments possible across all of our services.

Alkaline Zinc

Alkaline zinc is a quintessential application for the diverse markets of Nasmyth Group. With flexibility of this hard material under extreme heat, alkaline zinc can be utilised by Nasmyth to produce industrial necessities from nuts and bolts to heavy electrical transmission units and armoured vehicles. To further equip your components, Nasmyth utilises passivation expertise for increased corrosion protection.


In addition to Nasmyth Group services in passivation, we supply chromate conversion coatings Alachrom 1200 and 1000 for application for use as a pre-paint coating for electrical conductivity requirements or application to aluminium to prevent corrosion. These coatings are selected by Nasmyth Group for optimal practice due to provision of a premium foundation for paint and organic components and minimal changes to surface appearance.

Anodic Flaw Detect


Nasmyth technicians are skilled in application of bright, dull, chromate and olive finishes to enhance the corrosion resistance coating properties and appearance of components and connectors, particularly for the aerospace and automotive industry. Cadmium plating gives the benefit of a smooth, defect free guise.


Nasmyth Group is specialist in providing top quality protection of your parts from corrosion and wear through utilisation of our variety of anodising treatments. The application of Nasmyth’s range of anodic films can be used to improve adhesion and lubrication for paint primers, as well as tailoring metal aesthetics. Nasmyth Group chromic anodisation opaque softer films that are self-healing and ductile. They are often used as a treatment prior to our specialist painting processes.

Magnetic Particle Inspection (MPI)

Nasmyth Group provides this thorough service for subsurface detection within ferromagnetic materials and alloys by direct or indirect magnetization. Application of ferrous particles in differing arrangements to the tested components give accurate identification of fault presence by leak of magnetic flux, with aid of ultraviolet light to present the location of the ferrous particle build up. These non-destructive actions tailored to your specifications by our highly accredited technicians provide a detailed, approved analysis.


Nasmyth Group assures product resistance to the elements through our passivation service. Conforming to industry standards, we present a wide choice of specific methods for optimum protection from corrosion; working with differences in acid types, temperatures and additives to promote oxidisation.

Suited for casted and alloyed aluminium, SurTec 650 is a hexavalent chromium free passivation for aluminium suitable for alloyed and casted aluminium. It is a versatile pre-treatment Nasmyth Group use prior to adhesive applications and laquer services Nasmyth provide. The layer created is a result of easy immersion giving first-rate corrosion protection.


This Nasmyth Group oxidisation treatment gives resistance to corrosion for a range of industrial parts. Popular as a protective treatment for aluminum, our sulphuric anodising provides a spectrum of surface finishes, colourings and textures in a diversity of thicknesses.
Nasmyth’s experienced technicians undertake sulphuric anodising to stringent approvals to provide aesthetic, protective and insulative solutions to a variety of components.

Vacuum Blasting

Zinc Nickel

Zinc Nickel electroplating is an environmentally safe coat for multiple metallic preservations including steel, cast and malleable irons, brass and copper. Zinc Nickel has the ability to act as a sacrificial layer for corrosion to protect the base coating on parts for longer. Zinc Nickel can be applied to components by Nasmyth Group treatment specialists alongside our array in passivation layering for provision of further product longevity.


Cutting-edge services

Proud of our reputation for developing leading edge non-destructive testing and surface treatments of critical metals, Towerfield offers a range of services meeting the requirements of leading mechanical companies including specific specifications. Our technicians hand-treat every component, expertly matching their facilities to specific customer requirements. Offering flexibility for both small and large batch size, our expertise ensures we can guarantee on-time delivery, every time.


In-house testing and quality assurance

At Towerfield, all chemical processing is supported by our in-house flaw detection techniques approved to meet stringent customer specifications and standards. We are a quality assured organisation, gaining accreditation to AS9001: Revision C, BS EN ISO 9001:2000 and Nadcap: Chemical Processing and Penetrant Flaw Defect, alongside a variety of approvals from key strategic partners.  This quality assurance allows us to work confidently with complex precision industries across the globe.

Useful information

Get in touch?

Towerfield Plating Ltd
Towerfield Industrial Estate,
SS3 9QP,
United Kingdom

T +44 (0)1702 295743