International Leaders in DPF Cleaning


Ceramex invests over £3 million –ahead of a growing demand for Diesel Particulate Filter Refurbishing
21 Jan 2019


Ceramex Limited, an International leader in Diesel Particulate Filter Refurbishing, has reacted to the increasing demand for DPF refurbishing by investing over £3 million in a new facility upgrade.


Colin Lewis, Managing Director for Ceramex said, “ With the ever- increasing demand for tighter emission controls and the fitment of DPFs, it is inevitable that the demand for refurbishing DPFs is going to increase and future demands from our customers proves this.  Making sure we can handle future demands is extremely important to us and this new investment goes a long way to satisfying future customer demands. This facility upgrade will endeavor to maintain our dominance in the market place and further increases our capability to handle even more volume.”  


Ceramex is a British company that supply’s DPF refurbishing services to some of the world’s largest vehicle and equipment manufacturers, with service centers in UK, North America and Japan.  The company also cleans filters for heavy duty, LCV and passengers cars via its distributors.

Ceramex signs Service Supply Agreement for Diesel Particulate Filter (DPF) Cleaning Service with Halfords AutoCentres.
18 Apr 2018

Ceramex signs Service Supply Agreement for Diesel Particulate Filter (DPF) Cleaning Service with Halfords AutoCentres.

A rapid, convenient cleaning service for DPFs is now available from the UK’s leading MOT, car service, brakes, repairs and tyres specialist, after Ceramex has signed a Service Supply Agreement with Halfords Autcentres.   The Ceramex cleaning technology, known as Xpurge®, is a patented process that provides cleaning services to some of the world’s largest vehicle & diesel equipment manufacturers. Every filter is subjected to an internal and external inspection pre & post cleaning. Backpressure readings and weight are all compared before and after cleaning. This information is then used to compile a detailed inspection report, showing weight removed and backpressure. This report provides reassurance that the filter has been returned to a good-as-new condition.

Under the new arrangement, Halfords AutoCentres will offer the Industry’s leading DPF cleaning service to its customers. Halfords will use trained service personnel to diagnose and remove the filter, ready for collection by Ceramex.  This service, involving couriers, typically takes 3-5 days with the cleaned filter returned to Halfords with a detailed condition report. 

Sean Palmer, Business Development Manager for Ceramex said “we have considerable experience of cleaning DPFs from cars right through to mining equipment.  We’re delighted to create this partnership with Halfords;their reputation and coverage across the UK is paramount to making our service widely available at a fraction of the cost of a new filter.”

Martin Barber, Halfords Category Trading Manager said “This is an exciting new development for Halfords.  Given the number of DPFs fitted and the recent press, Halfords is doing its bit to keep the motorist on the right side of the law and by doing so could save the customer thousands of pounds along the way compared to a new filter.  With the new MOT regulations changing in May 2018 we want to be in a position to offer the best the market has to offer”





Frank Massey on Ceramex - Future of DPF Servicing
13 Jun 2017

The future of DPF servicing

The future of DPF servicing 

08 May 2017

Change can seem shocking at first, but is it the future?

By Frank Massey

Two months from now will bring my tenure in the motor industry to 49 years. I would like to think I have evolved, kept up with technology, enabling me to provide a professional service, enjoying customer respect and integrity. My focus has been the technical challenges, while my son David manages the commercial responsibilities.

This creates a wide role for me developing our training programme, internal research and development, bringing the focus of this topic to technical and legal compliance.

My chosen subject here is diesel servicing and repairs, specifically particulate filtration and emission control. It’s something we have been passionate and vocal over for several years. it gives me no pleasure or satisfaction in seeing our prediction over the demise of diesel vehicles.

Diesel fudge
The future is now clear as to the changes our political lords and masters have in mind. This gives us a short timeline to get our house in order.  My intention is to advise, help and warn what will happen if we all continue to fudge diesel particulate repairs as we currently do. Upwards of 90% of independent garages will fall into this category. How do, or should we service and recover diesel particulate filters? The choices are very simple!

1. Replace with a new OE filter

2. Replace with a non-OE filter

3. Clean and service off vehicle in factory controlled conditions

4. Clean and service off the vehicle in house

5. Clean and service on the vehicle

6. Remove the filtration system from the vehicle

Here is the problem; we as professional repairers are legally and financially responsible, and exposed for the advice and decisions we make. This is the case even if the customer agrees and or instructs us on a certain course of action.

Clear legislation is in place for the performance and fitment of diesel emission systems. Vehicle taxation is based on specific emission levels agreed with the manufacturers. I’m sure I don’t need to mention VW and Audi, but I will bet their corporate accountants have regrets. How long do you think it will be before the government bean counters look at us? Let’s not fool ourselves enforcement will take the effect of stringent fines.

So what are we doing wrong? Pretty much everything. Please remember my words, help, advice and not critique.

We are breaking the law in removing legally compliant systems. MOT examiners will lose their licence by passing unauthorised emission system modification. You will become the first unpaid enforcers.

We are breaking the law further in polluting the water course, by power cleaning, or rinsing out cleaning agents into the drains. Utility companies have powers to set huge fines and often do.

We are also in breach of the clean air act by using some of the available cleaning agents that require the running of the engine whilst emitting all the contaminants back into the environment.

It’s quite possible at this point some of you are about to rip out the magazine pages and offer an alternative use for them. Please reconsider, we are slowly killing ourselves.

Let’s as an industry get together, think ahead of the curve and get our house and process in order.

I recently visited CERAMEX in Slough, and before a handful out there suspect a paid endorsement here, I even paid my own travel expenses. I have been aware of several companies offering off vehicle cleaning, pressure washing, thermal cleaning in an oven, and ultrasonic treatments. My problem has always been, is the catalytic converter and DPF still fully functional and durable when refitted? How can we protect ourselves from future premature failure due to other indirect causes? Can we provide certification of test results?  

Here is my opinion as to how we should address the blocked, cleaning DPF problem. Many of you will not agree, I don’t care, this is how it should and eventually will be done. Reflect on the vast changes in the paint refinishing industry before you cry never!

The DPF is initially visually examined bar coded and weighed, attached by means of bespoke plumbing to what is in effect a big dishwasher – sorry Marcus my words – then filled with water. A short pause here, some of you will know water damages and degrades the precious metal wash coat. The purified water has all the damaging trace elements removed and is only used to restrict the clear DPF passages. Pressure waves, are then sent through the core, ‘XPURGE’ for several minutes. I did question if this was in effect an ultrasonic process? This is not the case. The water does act as a transport mechanism for the waste material, including ash, which is flushed out, into a waste tank. The water is filtered, for reuse and the semi solids captured in large skips for reprocessing. It is pure carbon it would make an ideal fuel source!

The DPF core is then placed in electric air dryers where apart from drying the core, measurements are taken for flow rates and back pressure. Next a two-stage photograph examination is applied to detect face off and ring off cracking to the core. A second weight check is taken to ascertain the mass of soot ash removal.  The next service is optional for small vehicle units, the cat and DPF are subject to a sample hot gas bench to establish the reduction of, CO/HC, finally being placed in a particulate bench where filtration is assessed and measured.

Certification and bespoke transport packaging completes the service. The recovery success is consistently above 90%. The cost is approximately half the cost of a new OE unit. No environmental pollution so your grandchildren will thank you and may avoid the huge increase in paediatric respiratory illnesses.

You will earn profit from a professional repair, enjoy the respect and integrity it brings, however not all customers will agree or want to pay, and that is not our problem.

Further information
Please contact Annette 01772 201 597, for further information on upcoming training courses and events.

Advertising Standards Agency bans ad to remove pollution filters from diesel cars
14 Dec 2016

The rogue practice of removing vital pollution filters from the exhausts of diesel vehicles has suffered a blow with the Advertising Standards Authority (ASA) for the first time banning an advert for the service.


To read the full article in the Guardian click the above link.

Ceramex to Exhibit at the forth coming SAE Heavy - Duty Diesel Emissions Control Symposium in September
21 Jul 2016

The SAE International Symposium Will Explore the latest Trends and Strategies in Heavy - Duty Diesel Emissions Control Technologies.

Visit us at stand 10 September 20 -21, Hotel 11, Gothenburg, Sweden 


Ceramex is the only service I have positive feedback about - Honest John 15 July 2016
18 Jul 2016

If you Google <DPF Cleaning> you'll find alternatives and 'DIY cures' that may or may not work at this late stage, but Ceramex is the only service I have positive feedback about.

For the full Honest John editorial click here

More than 1,000 diesel cars caught without pollution filter, figures show
18 Apr 2016


Government urged to crack down on rogue practice of garages removing compulsory diesel particulate filters from vehicles.

The Guardian 

Ceramex to exhibit at the Equip Auto Show in Paris - October 2015
5 Oct 2015

Ceramex to Exhibit at the Equip Auto Show in Paris.

Equip Auto

October 13-17 stand 6B 099