sealent

[richard fry]

proper sealent for through hull air con & head valves where they pass through bottom of boat one boat shop said they use permatex ultra rtv silicone gasket makef they did my depth trans ducer and it stopped the leak im also going to have to remove air& head strainer and reseal it looks like 5200 sealer was used first , the depth sounder does not leak any more youre thoughts please thank you Richard