Fuel Polishing
Craigs & WASP:
Protecting Fuel Quality Together
At Craigs, we’re proud to work in close partnership with WASP, global leaders in fuel polishing and contamination control. For many years, we’ve supplied WASP’s innovative systems to customers across Ireland, the UK and Europe, helping to ensure clean, reliable fuel in critical applications. Whether for backup generators, data centres, marine or industrial sites, fuel quality is vital – and WASP’s automated polishing systems offer a proven, cost-effective way to remove water, sludge and microbial contamination, protecting both equipment and uptime.
Together, Craigs and WASP deliver tailored solutions backed by deep technical knowledge and a shared commitment to quality.
What is Fuel Polishing?
Fuel polishing is the technological cleaning process which removes water and particulates from diesel fuel which is stored for the medium to long term. This process keeps the fuel at optimum condition and helps prevent fuel related engine and generator failures. Fuel polishing is essential for an uninterrupted power supply.
Why Undertake Fuel Polishing?
For critical facilities that rely on backup generators – such as data centres, hospitals, or supermarkets – the ability to switch seamlessly to standby power during a mains failure is non-negotiable. However, this reliability depends entirely on the quality of the stored fuel.
Over time, fuel that remains unused can degrade and become contaminated by water, sludge and microbial growth. This contamination can block filters, damage generator components and ultimately prevent the system from starting when it’s needed most.
Fuel polishing is a proactive solution that continuously or periodically cleans stored fuel, removing water, particulates and microbial contaminants to maintain fuel integrity. By investing in fuel polishing, you significantly reduce the risk of generator failure – protecting operations, infrastructure and in some cases, even lives.
The Fuel Polishing Process
Fuel polishing is the technological cleaning process, which removes water and particulates from diesel fuel, which is stored for the medium to long term. This process keeps the fuel at optimum condition and helps prevent fuel related engine and generator failures.
There are many different stages in the fuel polishing process which follow one after the other in a specific sequence. This ensures the water, sludge, sediment and other contaminate is removed from the fuel.
By removing the bacterial content and neutralising any residual micro-fine particles, the infection simply cannot return; thus ensuring that the WASP Pure Fuel Systems are not only the most effective way of maintaining fuel quality, but is environmentally friendly too, as no chemicals or biocides are used in this process.
