Pourable chocking compound for marine applications

Belzona 7111 orange in action.

Belzona 7111, a pourable chocking and grouting compound designed to endure the physical and thermal shock common throughout the marine environment, has launched in South Africa.

Specifically formulated to spread out evenly across irregular surfaces, the new compound is different from similar liquid applied chocking systems in that it can be stored for long periods of time.  It has currently been tested to confirm a three-year shelf life, with the recommended shelf life expected to increase to five years when tests are concluded.

Belzona 7111 requires neither hot work nor specialist tools during application.  Once cured, this chocking compound exhibits high load-bearing capacity, while providing precise equipment alignment, dampening machine noise and vibration, and preventing loosening of threaded bolts.

These characteristics make it ideal for pouring foundations for ship propulsion systems and other heavy equipment, where alignment and anchorage are essential.  Since machining of foundations is not required when this product is used, the cost and time for machinery installation can be reduced significantly.

The American Bureau of Shipping (ABS) has approved Belzona 7111 for marine applications such as chocking, backing and levelling in:

  • Engines
  • Pumps
  • Generators
  • Compressors
  • Reduction gears
  • Bearing blocks
  • Crane rails
  • Other machinery

The compound has also been approved to be used in constructions built under the Lloyd’s Register’s survey.

Commenting on the ABS approval, Dr. Xi Chen, Belzona’s vice president of research and development said, “It is significant testimony that Belzona 7111 meets the highest quality and performance standards set forth by the marine industry.”

Belzona 7111 has an excellent load bearing capability that is demonstrated by the compound’s comparably high compressive strength. Tested in accordance with ASTM D695, compressive yield strength measures at 14930 psi (102.9 MPa) and compressive modulus at 5.75×105 psi (3964 MPa.)

Compound formulation is entirely from solids, resulting in no shrinkage at all during the cure. Self-levelling properties facilitate quick and simple application.

Available in grey or orange, Belzona 7111 features high creep, high corrosion and high vibration resistance, qualities that ensure ease of use and lasting performance under various service conditions.

Its manufacturer, Belzona, is a leader in the design and manufacture of polymer repair composites and industrial protective coatings for the repair, protection and improvement of machinery, equipment, buildings and structures.  The company’s Harrogate factory manufactures all products to stringent quality and environmental control guidelines complying with the requirements of ISO 9001:2008 and ISO 14001:2004.