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Reduce risk and maintain compliance with our specialist risk management services.

We’re proud to be a leading provider of complete life cycle risk management solutions. From ensuring asset safety and legal compliance with our thorough engineering inspections to driving operational efficiency with our specialist non-destructive testing services, (and much more in between), we’re proud of the long-lasting partnerships we have formed with our customers over the last 160 years, based on the value of our solutions.

AC and DC (Holiday) Spark Testing

Protect Your Tank Floor from Corrosion with Spark Testing from BES Group.

Discover more about our industry leading AC and DC Spark Testing service, and how it can find hidden faults in your plastic lined equipment and assets.

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Protect your linings and coatings from failure

Spark testing, also known as holiday testing, is a non-destructive testing (NDT) method used to detect defects in plastic linings and coatings. AC spark testing is typically used on thermoplastic linings with a conductive backing strip, while DC spark testing is used on non-conductive coatings applied to a conductive substrate.

Both AC and DC spark testing work by passing a high-voltage electrical current through the lining or coating. If there is a defect in the lining or coating, the electrical current will arc through the defect, creating a spark. This spark can be detected visually and/or audibly.

Spark testing is a highly accurate and reliable method for detecting defects in plastic linings and coatings. It can be used to identify a wide range of defects, including:

  • Pinholes
  • Cracks
  • Voids
  • Lapses
  • Disbondment
  • Thinning

Spark testing is important because it can help to prevent leaks, failures, and costly repairs to plastic linings and coatings. Defects in linings and coatings can lead to corrosion, contamination, and other problems that can damage equipment and disrupt operations.

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Key benefits

Early detection of defect

BES Group's spark testing services can detect defects in plastic linings and coatings that are too small to be seen with the naked eye, enabling early detection and repair and preventing more serious problems down the road.

Reduced downtime and repair costs

By detecting defects in plastic linings and coatings early, BES Group's spark testing services can help you to reduce downtime and repair costs.

Extended lining and coating life

BES Group's spark testing services can help to extend the life of your plastic linings and coatings by preventing defects from causing leaks and failures.

Early detection of defect

BES Group's spark testing services can detect defects in plastic linings and coatings that are too small to be seen with the naked eye, enabling early detection and repair and preventing more serious problems down the road.

Reduced downtime and repair costs

By detecting defects in plastic linings and coatings early, BES Group's spark testing services can help you to reduce downtime and repair costs.

Extended lining and coating life

BES Group's spark testing services can help to extend the life of your plastic linings and coatings by preventing defects from causing leaks and failures.

Contact us to schedule a consultation to discuss your testing requirements!

Get in touch today! Get in touch today! Get in touch today!

Why choose us

Qualified service

Our team are qualified to PCN Level 3 and ASNT NDT, and adhere to the BS EN ISO 9712 standard.

NDT expertise

BES Group has a team of experienced and qualified NDT inspectors who can use our complete suite of NDT techniques to inspect a wide variety of equipment and assets.

Trusted reliability

BES Group is a trusted and reliable provider of NDT services. We're proud to have a proven track record of providing high-quality services that meet the needs of our customers.

Hear what our customers have to say

We care about the journey we take our customers on, but it’s not our word you should be taking, see what our customers think of the service we provided!

We have been with BES for the past 5 years and don’t plan on switching providers. They are very flexible with their services and are able to bring the best inspectors who can deal with on the ground challenges and build real relationships with clients.

Customer

Global Technical Services Manager

The industry requires competence to be demonstrated, typically through UKAS accreditation, which is a prerequisite for many major clients. BES is type A accredited, which is preferred, they can provide highly objective opinions.

Customer

Senior Project Manager

The BES inspectors are way more technically competent and diligent compared to other providers. BES definitely stands out due to their strong technical competence and strong back office support.

Customer

Project Operations Manager

BES is a really disruptive force in the market, they are able to provide a variety of necessary services to their customers and none of the other big players are able to provide that breadth of services.

Industry competitor

Our related services

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MFL Tank Floor Scanning

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GRP (Glass/Fibre Reinforced Plastic) Tank Inspection

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Our sectors

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