WPC Decking used for Marine and Commercial

Marine and Commercial

In 2007, Seventrust was approached by a number of players in the Decking and Wood Plastic Composite industry with a request to enter the arena in order to bring sustainability of performance and supply to this emerging but fragmented market.

Seventrust Marine and Commercial Decking is the result of three years' research, development and product evaluation.

Concerns were expressed with regard to the variability found with some recycled materials. Unable to satisfy ourselves that consistent product quality could be achieved with the samples tested, Seventrust made the decision to work exclusively with virgin polymers.

Investigations led us to the conclusion that raw material selection was a vital consideration. Discussions ensued with potential customers and further concerns were raised that when in use, some of the composites were deflecting more than anticipated, with this deflection becoming permanent with time. We therefore, determined that flexural modulus and bend strength were the key design parameters.

Having established the core physical properties, we then focused on performance, in particular slip resistance, growth of organic matter on the deck surface and weatherability.

Immersion tests showed that the Seventrust deck exhibited the least organic growth when compared with typical Recycled Polyethylene Deck filled with wood flour or rice hulls, thus improving the slip resistance in service.

The form and finish of Seventrust decking exhibits excellent slip resistance when tested against the Health and Safety Executive's published grading system.

Accelerated weathering results further reinforced the view that virgin PVC / WPC gives excellent performance, as would be anticipated, with the long history of PVC-U as an exterior product.

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