Our seawalls are not in good shape.
This normally wouldn't be the most newsworthy bombshell if the US hasn't had five straight years of climate shift, including rising sea levels affecting previously unaffected regions (see: "Sandy, Hurricane").
|Your average seawall is mostly concrete, vulnerable|
to erosion and weathering.
Back in the 20th century, we used concrete and wood. Nowadays we use polyester resins, glass-based that need a gel coating to block water effectively. Even then, the average life for polyester seawalls is a mere 25 years. More recently, manufacturers have been turning to polyurethene resins, a much stronger ingredient for composite sheet piles, but they've so far been too expensive to use on a large scale.
|This pure polyurethane resin seawall is laced with Bayer's|
new PURloc composite.
Gulf Synthetics is currently putting the PURloc composite sheet piles to work in areas of New York and the Cayman Islands. If it proves its worth, this could be an exciting new development, as well as an opportunity to re-manufacture a much-needed product for the immediate future.
Donal Thoms-Cappello is a freelance writer for Rotor Clip Company.