International+32 (0) 2332 3225

Marine applications

Tightness testing of hatch covers and on-board predictive maintenance program

Ultrasonic tightness testing offers a complete, global solution with unheard-of accuracy and reliability. Accuracy that has received Classification Society Type Approval.

Water-damaged cargo remains one of the most pressing problems for the industry as a whole. Owners, P&I Clubs and insurers are faced with several hundred million dollars of water damage claims a year, not counting missed deadlines and serious disruption to client operations.
Now ultrasonic tightness testing can dramatically improve the n° 1 cause for claims each year – simply, accurately and reliably!

ultrasound hatch cover testing

SDT Sherlog range is custom-made for maritime applications

Ultrasound has a proven track record in the marine industry performing weather tightness testing on hatch covers. SDT’s Sherlog line of ultrasound detectors features tailor-made solutions for the marine industry, allowing you to face the challenges of modern shipping. Have confidence that your cargo is safe from the damage that seawater ingress can cause.

A global solution: instrument, training and certification

The Sherlog product range has kits that suit the needs of every operator

Whether you need a simple measuring device or would like to develop a complete type-approved tightness testing program, SDT has designed kits that meet your needs. See the details of each kit and the recommended users.

Hear More On Board

With the right equipment, ultrasonic tightness testing is quick, efficient, repeatable and reliable. SDT has been closely collaborating with the marine industry for more than 20 years. This collaboration has led to the development of a complete range of products for tightness testing and shipboard maintenance. All of our products are backed by fanatical worldwide support and training.

The benefits for you Predictive Maintenance Program:

Integrating the Sherlog SDT200 or SDT270 in a shipboard maintenance system aids in detecting potential problems at an early stage, long before other techniques. Ultrasound helps avoid costly downtime from sudden breakdowns, extending the in-service life of your ship borne equipment, enhancing reliability and safety. An ultrasonic condition monitoring program helps you to organize and plan maintenance tasks when and where they are needed most. The benefits of using the Sherlog SDT200 or SDT270 ultrasound detectors are significant to reducing your maintenance budget.

Ultrasound has many applications that save time, trouble and money:


SDT is a Nautical Affiliate partner of
The Nautical Institute