2006-11-16 02:17:32 · 4 answers · asked by s1987uk 1 in Cars & Transportation ➔ Boats & Boating
There are some pretty nice people at West Marine that could probable help. Most of them are sailors and very knowledgeable... Jim
2006-11-16 03:21:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Material 1. EPDM (Ethylene=propylene-diene monomer) compound. This is waterproof, weatherproof and long lasting, it can be compounded to be hard and reliable, and able to withstand the mistreatment you get in a marine environment.
Material 2: SBR compound (Styrene-butadiene rubber). Cheap and cheerful. Probably won't last quite as long as EPDM, but will be cheaper. Waterproof, mostly weatherpoof, non-eroding and reasonable lifetime.
Material 3 Silicone rubber. This is more expensive and softer, so won't withstand a harsh environment in mechanical terms, but will withstand any kind of chemical or biological attack.
Just a note on compounding. Making something from rubber is a bit like making a cake: you add in lots of ingredients to suit the properties you want (like changing ingredients for making either a cherry cake, or a chocolate cake). Then you put it in a mould (like a cake tine) and cook it under pressure and temperature for a few minutes.
In the oven, the cake (and the rubber) undergo an irreversible chemical change.
So the compound (recipe) you need will include biocides (to kill off any algae or molluscs that attach themselves to the keel / hull of the boat. it will include reinforcement (carbon black) as well as the normal curing agents and accelerators.
Hope it helps
2006-11-17 08:31:16 · answer #2 · answered by Bushit 4 · 0⤊ 0⤋
post up this question on SailingAnarchy.com. They've got very experienced folks over there who more than likely will be able to provide the answer.
2006-11-16 16:05:17 · answer #3 · answered by JW 2 · 0⤊ 0⤋
I would contact the manufacturer of the vessel, or anther boatyard that performs that type of maintenance.
2006-11-16 10:21:59 · answer #4 · answered by nytugcapt 3 · 0⤊ 0⤋