November 6th, 2019 by


Munich, 12-15 November 2019 

Booth No: Hall B 575 

Rainbow Technology Systems will be showing the next generation of resists for the electronics sector at the show. For the past 50 years dry film has been the traditional method of coating on PCBs. However it has become an increasingly expensive method and is prone to potential flaws. It requires a clean room environment and a costly, purpose-built coating line. The nature of the method means that the dry film is not guaranteed to always lay entirely flat on the copper panel thus when it comes to etching the etching chemistry can get under the dry film which could lead to an open circuit. 

Rainbow’s proprietary liquid resist and coating system addresses these issues giving PCB manufacturers complete control over handling and control of coating thickness. The liquid resist flows easily, adheres closely to the surface of the substrate and can be applied at ambient temperature. Moreover, the resist does not require drying before it is imaged. The panel can still be handled as the resist coating is protected by a layer of mylar. The resist is first applied to a reel of polyester and then laminated directly to the copper panel, leaving the protective polyester carrier in place over the resist transfer coating. After lamination the panel is “singulated” separating it from the carrier web. The panel can then be exposed by any method, including DI/LDI. 

Coating thickness can be from 2-30 microns; thinner resists are ideal for fine line printing. Coating thicknesses and/or part numbers can be changed in as little as 2-3 minutes. 

Jonathan Kennett, chief executive officer, Rainbow Technology Systems said: “The Rainbow process can save PCB manufacturers considerable amounts of time and money. The chemistry of the Rainbow resist is established and proven. This new transfer coating approach can be configured to coat panels, webs, single or double sided as both an etch or plating resist. Our coating and laminating process can also be used for applying other inks or liquids requiring close coating control or imaging.”

Mekall Launch Range of Light Boxes

September 13th, 2018 by

Leveraging in-house expertise in LED technology and Industrial Printing, Mekall announce the launch of a range of High Definition LED Viewing Panels, or light boxes. Unlike other products which have a varied level of intensity and clarity, the Mekall LED viewing panel delivers a perfectly uniform level of high, safe light intensity across the entire surface.

The Mekall LED viewing panel is available in multiple sizes to include A3 (297mm x 420mm).  Enquire about the LED Viewing Panel here. 


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Rainbow Technology Systems appoints new design engineer

April 13th, 2018 by

Glasgow-based Rainbow Technology Systems (RTS), a specialist design, manufacturing and consumables supply company has appointed Elaine Macqueen as a design engineer.


Elaine has a strong background in design, test and manufacture for a wide variety of industrial, scientific, and medical applications.  Formerly, as a process engineer, Elaine had gained experience in the implementation of a lean manufacture programme to boost operational productivity.  She graduated in 2014 with an Honours Degree in Product Design Engineering from the University of Strathclyde.


“Rainbow is well known for its innovative approach to design and process automation so I am really excited to be joining the engineering design team,” said Elaine.  “I was looking for a challenging position where my product design skills would be deployed on interesting and innovative projects and I have definitely found it at RTS.”


Alastair Bennett, Mechanical Engineering Manager at RTS, said: “We are delighted to welcome Elaine to the team.  Her experience and knowledge of product design, process automation and lean manufacture will be a huge benefit to us and our customer base.  She is already heavily involved in several projects and has integrated seamlessly into our program of continuous product improvement.”

LED Single Array Unit ships to the USA

February 1st, 2018 by

LED Single Array unit ships to the USA. This unit will be used in a prestigious USA University in the development of new technologies.

Rainbow Technology Systems appointed as approved Bosch Rexroth supplier for Scotland

December 18th, 2017 by

Rainbow Technology and Bosch Rexroth have agreed a partnership which enables the Scottish Manufacturing industry to source Bosch Rexroth products locally from Rainbow Technology. Rainbow will also provide design, construction and installation expertise on behalf of Bosch Rexroth.

Panda Machine Upgrade

May 31st, 2016 by

The Rainbow Panda coating machine has gone through an upgrade programme with the aim of further improving the system cleanliness to meet the stringent levels required by the touchscreen market. Key improvements have been made to both air and liquid filtration. The machine now has a full length multi fan HEPA filtration system creating a positive, clean air flow directly above the critical coating area. Fine filters have also been added to the liquid supply system, both at liquid pick-up and immediately prior to dispense. These changes are now standard fit for the Panda coater.

Rainbow offer sub-contract design service

February 24th, 2016 by

Rainbow Technology now also offer Mechanical, Electrical and Process design and development service in addition to their core business of designing and manufacturing equipment and processes for the PCB industry. Projects could be based around equipment upgrades with automation or improved handling, or could be new systems designed from the ground up. The Rainbow engineering team cover mechanical design, electrical design, PLC programming, operator interface and process development.

Singulation Machine Launch at Productronica!

November 5th, 2015 by

Pictured is the first Rainbow Singulation machine being finished off just before being packed and shipped for its debut at the Productronica Exhibition in Munich. More information about this new system can be found here.

First production ready Rainbow Process Line shipping to China

April 27th, 2015 by

The first fully production ready Rainbow Process Line has now been taken apart, crated up and picked up for transport to South China, where it will be installed at a leading PCB manufacturer in the coming weeks.


Rainbow launch new Verification System

January 28th, 2015 by

New to market is the Rainbow Verification System, which brings fast and easy inspection of back to front registration of printed images using a high precision camera system. The standard system is designed for corner inspection and can both display and output the collected information.