Thanks! I looked online for Gluvit and found interestingly that it works to seal leaks in aluminum. Here's what it says about Gluvit 'On wooden hulls, Gluvit seals and protects planks and sheeting against water absorption and damage from marine parasites. On aluminum hulls, Gluvit seals seams and rivets and acts as a barrier coat to minimize galvanic corrosion. On jet skis, rowboats and canoes, Gluvit provides abrasion resistance to protect hull sides and bottoms from damage by grounding on beaches or rocks.
For maximum ultraviolet protection, must be painted after cure
2 lb. unit covers 25-35 square feet, when applied at 6-8 mils
8 lb. unit covers 100-130 square feet at the same thickness'