Originally established in 1958 by Patrick Clement Cox, Sulzer Mixpac (UK) has become the global market leader in the design and production of manual, pneumatic and battery hand held sealant and adhesive applicators. Our success story and growth started with our first product, the often copied Wexford skeleton metal frame applicator – still manufactured due to its popularity and reliability but now known as the Easiflow HD. Subsequent later models, with a new mechanism incorporating a smooth rod with clutch and release plate, became the worldwide industry standard.

Today, Sulzer Mixpac (UK) continues to focus on innovation, looking at ways to improve product performance and ergonomic features, address environmental questions and introduce more energy saving features. The Company concentrates on using the highest quality raw materials and developing products that compete strongly in the marketplace while not compromising on quality.



  • Acquired Ark Plastics (Cox Plastics Technologies)
  • Single component product names re-branded
  • New look corporate branding and website launched
  • Denpress dental dispensing system launched
  • Electraflow development delivers the lightest sealant applicators available on the market
  • Development of cordless range of products
  • Increased activity in working with industry partners
  • Introduction of global Business Development Managers in Asia and Europe
  • Management buyout
  • Sold Cox Plastics Technologies
  • Restructured Mays Pressure Die Castings
  • Sulzer acquired PC Cox Group Ltd
  • PC COX is now Sulzer Mixpac UK Ltd


  • Subject of private equity buyout by CVC capital partners
  • Expanded portfolio of manual and pneumatic applicators
  • Cox acquires North American distributor
  • Set up manufacturing at Michigan facility
  • Acquired Mays Pressure Diecastings, London


  • Co-axial and side-by-side airguns developed
  • Powerful hand applicator mechanisms developed
  • By the late 1980’s exports accounted for over 80% turnover
  • Cox family sold business to Guthrie Corporation (acquired by BBA Group)


  • Moved to current HQ in Newbury, England
  • Saw first export customer in Germany
  • Development of dump valve to control the flow for air applicator
  • Achieved £1m annual turnover for the first time


  • Incorporated as Mastic Appliance (PC Cox)
  • First air applicator for cartridges developed


Patrick Clement Cox starts The Mastic Appliance Company

  • barrel gun with steel body and gravity die cast butt and trigger
  • using pressure die cast components for the first time
  • many design features recognisable in today’s manual applicators