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Old 01-04-2015, 08:45   #1
RDW
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silicon hoses

What are the pros and cons of silicon hoses on a sail boat?
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Old 01-04-2015, 09:03   #2
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Re: silicon hoses

For what purpose?
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Old 01-04-2015, 09:38   #3
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Re: silicon hoses

should have said for coolant system
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Old 01-04-2015, 10:13   #4
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Re: silicon hoses

They come in pretty colours.
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Old 01-04-2015, 10:19   #5
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Re: silicon hoses

It's spelled Silicone. (Part of the value of an internet forum is being able to search it for questions that have already been answered. That's a lot harder to do when posts are full of spelling errors, particularly in the subject!!!)

Whether its "good for boats" depends on what you are intending to do with it. Whether a hose is being exposed to solvents, oil, heat, flexing, whether it's installed above or below the waterline (will the boat sink if it fails?) all go into the decision as to whether a particular hose is appropriate or not.

As for the hose, just knowing it's material isn't the whole story. Is this hose reinforced or not? With what? What does the manufacturer state it's working temperature range is? What's the wall thickness? Whats the pressure rating? Whats the vacuum rating?

You don't want the hose getting super soft because you are getting it hotter than the manufacturer intended. You don't want it to collapse because it can't handle vacuum. You don't want it to burst because it can't handle pressure. You don't want it to dissolve because you are putting chemicals through it it wasn't designed to handle.

But yes, there are coolant - capable hoses being sold that are made mainly of silicone.
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Old 01-04-2015, 10:23   #6
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Re: silicon hoses

They sell automotive silicone hoses based on various claims of certain advantages, but the main advantage is that they come in bright colours and are thus of interest to a certain group of car modifiers.
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Old 01-04-2015, 10:27   #7
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Re: silicon hoses

Silicone hoses were originally developed for extreme temperature applications. Cramped turbocharged installations were an early use case. You can also find them in some aircraft applications.

As with all shiny kit there are high quality components and some rubbish available.

The silicone hoses were frequently used for air intakes in motorsport. They were more durable when removed and replaced frequently. They tend to have better construction than rubber hose particularly in the larger sizes.

They dont degrade like rubber hose does at elevated temps.

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