Thanks for the great advice recently, David Houston and Malcolm Purves from C-Tec Scotland. I recently used CT1 to seal a long standing and niggling leak on a Rib speed boat I own. After trying the usually recommended patches and adhesives previously and without luck, I turned to the standard clear CT1 product. The main problem was that the leak turned it to be in an almost inaccessible area of the boat, rendering the usual solutions almost impossible and certainly not effective. The product was applied and left to cure overnight, as recommended by David and Malcolm, then hey presto, leak fixed ! This surely must be a must have addition to any nautical or marine based emergency tool kit ! Really chuffed, Thanks guys.