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Spray Applied Coatings for Rigid Hulled Inflatable Boats

Rhino Linings Providing Strong Flexible Protective Coatings for Rigid Hulled Inflatable Boats 

For a range of activities and operations in the maritime environment, small, manoeuvrable, robust, stable, high-speed boats are a necessity.

 Rescue services must respond quickly to emergencies at sea and port authorities need to get harbour pilots to and from ocean-going vessels for safe operation within a port area.

Similarly, police and the military, need to pursue vessels that are suspected of being involved in criminal activity and get officers on board quickly and safely.

For the several decades, a range of rigid-hulled inflatable boats (RHIBs) have been built and refined by companies to meet the demands and stresses of all these tasks.

The combination of rigid hull and large inflatable buoyancy tubes was first developed in the 1960s. Unfortunately, these early developed inflatable sections were not very robust and were prone to deflating.

Research showed that the strength and durability of the inflatable sections could be dramatically improved by using spray-applied surface coatings to cover the tubes.

To be successful, coatings must be strong, flexible and resistant to the ravages of continual exposure to salt water and UV light.

 

 

Polyurethane used Successfully to Protect Inflatables

Polyurethane coatings produced by Gold Coast-based Rhino Linings Australasia (RLA) are used by some RHIB manufacturers to protect and strengthen the inflatable sections and provide non-slip walkways on deck sections where required.

Rhino TUFF STUFF, a versatile spray applied polyurethane coating, provides maximum slip resistance with enhanced protection against impact, abrasion and corrosion.  This spray-on application creates a single, seamless coating, that conforms to any shape and size and bonds to virtually any substrates.

Polyurethane coatings made by Rhino Linings Australasia have a patented mix ratio that has been developed over many years. “We have dedicated staff who understand the chemistry of the product,” said Denis Baker, Special Projects Engineer at RLA. “They have a great depth of knowledge and experience for which products can be used and in what situations.”

The elastomeric properties of Rhino’s coating systems allow for application to surfaces that are subject to vibration, expansion, contraction, movement, flexing, abrasion and impact. The selected coating, in this case, is extremely flexible while maintaining its integrity under repeated flexing, regardless of film thickness.  

 

What is a Rigid Hull Inflatable Boat?

RHIBs range in size from 4 to 9 metres, although some can be as long as 18 metres. Their shallow draught, high manoeuvrability, speed and relative immunity to damage in low-speed collisions are advantageous in the situations in which they operate. Constructed with a solid, shaped hull and flexible tubes at the gunwale, the design of a RHIB is highly stable and seaworthy.

Posted in: Rhino Linings Blog at 14 August 18

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