Syntho Glass emergency
This revolutionary product enables you to make immediate and effective repairs without mixing, measuring or waiting. The SynthoGlass resin and cloth (3" x 9') system begins to set instantly when removed from its package, and hardens to a full cure within 30 minutes, (allowing plenty of working time), even under water. Adheres to wet surfaces as tightly as dry ones, with no extra materials necessary.
For marine use only, NOT for stopping leaks permanently.