When I first installed the baffles on an IO 360 I lined the inner surface of the baffle that raps around the cylinders with mylar tape as suggested by someone on the forum to decrease the wear of the cooling fins wearing the aluminum. I removed one of the baffles for some maintenance and the tape had melted and was a mess. Does anyone have any suggestions for lining the surface next to the cylinder? There are some groves worn in some of the areas through the tape after 600 hours. I used 3/16 inch SS welding rod and bent and threaded them to connect the inner coolers together. I used nylon tubing to cover them but they melted on one side. Any suggestions on covering the rods to reduce any wear on the drain back tubes with something more heat resistant?