Water proofing/sealing deck
Alright, read the other threads, thought I would post this info here. Originally I was on the RCuniverse page before I found this site. Yeah, this is much better! This is a summary of what I posted over there on my fleet of mini-v’s.
My water proofing method:
I have six of these for my family to run. Taping the hatch is not an option when you are trying to keep several of them running with kids. So, I take the cover and put a thin film of vaseline on the sides, in and out with my fingers. I then fill the groove all the way around the hatch with clear silicone. Along the back where there is no groove, I just lay a heavy bead of silicone about 3/16" high.
Then, set the cover in place. Make sure the front is pressed down so it is flush with the deck. make sure the magnet "clickes" into place on the back. Look at it from the back and make sure the lid is level, or about the same amount of gap or space on each side. Let dry for 24 hours.
If you use a straight screw driver you can pop the back off first, then work it up each side. The lid comes off pretty easy due to the vaseline as a release agent on the lid. What you are left with is a seal that is custom made to your cover!
We have run these at the lake in rough water. They have been stuffed through waves, flipped upside down and left floating upside down for several minutes. Never had one sink. In fact, after being upside down and floating into shore after about 5 minutes, there was about 1/4 - 1/2 ounce of water inside the hull. Just pick it up, keep it upside down and pop the lid off to drain the water. Even had one get stuck upside down under the jet ski lift at the lake. The pictures on the web with hull noses sticking out of the water never needs to happen. SEAL THAT HATCH!
I also will put a 1 to 2 inch square of that thin hard sponge material inside the hull. This way any water gets soaked up by the towel and is not left to splash around inside the hull getting everything wet.