At the end of a full-day of paddling, you load your car, put away your vest and rescue gear. You get ready to put away your paddle, but after you push the spring-lock button, the paddle won’t split apart. It’s stuck. Likely, a barely-noticeable, fine sand found its way into the connection before you joined the parts together. With luck on your side, the paddle comes apart when you tug on one end and a friend tugs on the other. On a normal day, it feels like someone super-glued the paddle together. When it feels like glue keeps your kayak paddle stuck together, break out the hair dryer and a…