In my career I've come accross a lot of
boat owners that cover their
trailer and
cradle pads with carpet to protect the underside of the
hull where it rests and this may seem like good practice....not quiet.
I'm currently treating a
boat for
osmosis that hasn't even seen the
water yet which is a absolute shame.
The moisture readings are low as expected throughout the
hull until you come to the areas where the boat rested on the carpeted pads, the moisture readings go through the roof and there is visual evidence of glycol blistering.
Athough the boat has never been in the
water it did sit on its
trailer for some years, exposed to rain, which soaked the carpeted pads and being a lot less dense, the rainwater migrated through the
gelcoat a lot faster than that of saltwater.
For me I'll be using pads cut from old tyres which drain of water faster after a bout of rain and it's a lot easier and cheaper to deal with the black marks left behind.