| Re: Ultra Ever Dry? Effect on foils?
[Re: bacho]
#263488 09/10/13 02:20 PM 09/10/13 02:20 PM |
Joined: Jun 2001 Posts: 12,310 South Carolina Jake
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Posts: 12,310 South Carolina | I was in Home Depot today and saw a product that looked very similar. It was rust oleum never-wet. Seemed to have many of the same demonstrations and a similar color. It was $18 for 2 spray cans. Rustoleum bought the rights to the stuff.
Jake Kohl | | | Re: Ultra Ever Dry? Effect on foils?
[Re: Jake]
#263489 09/10/13 02:30 PM 09/10/13 02:30 PM |
Joined: Aug 2011 Posts: 774 Greenville SC bacho
old hand
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old hand
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Posts: 774 Greenville SC | I was in Home Depot today and saw a product that looked very similar. It was rust oleum never-wet. Seemed to have many of the same demonstrations and a similar color. It was $18 for 2 spray cans. Rustoleum bought the rights to the stuff. Interesting, I may pick a pack up to experiment with. | | | Re: Ultra Ever Dry? Effect on foils?
[Re: David Parker]
#263492 09/10/13 02:42 PM 09/10/13 02:42 PM |
Joined: Jun 2001 Posts: 12,310 South Carolina Jake
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Posts: 12,310 South Carolina | If nothing to the coating, HOW DOES THE COATING STICK TO SURFACES???
I often wonder how any non-stick is applied. Most non-stick coatings (nylon, teflon, etc.) are a powder coating/heat treating process.
Jake Kohl | | | Re: Ultra Ever Dry? Effect on foils?
[Re: Jake]
#263530 09/10/13 04:21 PM 09/10/13 04:21 PM |
Joined: Dec 2001 Posts: 5,590 Naples, FL waterbug_wpb
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Posts: 5,590 Naples, FL | if you apply a hydrophobic substance on foils, would that allow air to cause cavitation more quickly?
Jay
| | | Re: Ultra Ever Dry? Effect on foils?
[Re: waterbug_wpb]
#263552 09/10/13 08:54 PM 09/10/13 08:54 PM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | if you apply a hydrophobic substance on foils, would that allow air to cause cavitation more quickly? Air doesn't "cause" cavitation. Cavitation results when the local pressure on the foil surface gets below the water vapor pressure and bubbles of water vapor form and explosively collapse - which is a real problem on propellers (the force can erode stainless steel). On catamaran foils - not so much, if ever. What most people think of as "cavitation" is actually ventilation - the local foil pressure drops below the surface air pressure and draws air down from the free surface. And since air is 1000 times less dense than water, the foil loses it's lift. A hydrophobic coating is probably going to promote the ventilation process, since the surface tension will create a natural crevice for the air to bleed down the foil. Wetting agents would have the opposite effect. | | | Re: Ultra Ever Dry? Effect on foils?
[Re: mbounds]
#263588 09/11/13 11:09 AM 09/11/13 11:09 AM |
Joined: Dec 2001 Posts: 5,590 Naples, FL waterbug_wpb
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Posts: 5,590 Naples, FL | my apologies... you are correct. I was referring to ventilation rather than cavitation
Jay
| | | Re: Ultra Ever Dry? Effect on foils?
[Re: waterbug_wpb]
#263589 09/11/13 11:11 AM 09/11/13 11:11 AM |
Joined: Jun 2001 Posts: 3,906 Clermont, FL, USA David Ingram
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Posts: 3,906 Clermont, FL, USA | my apologies... you are correct. I was referring to ventilation rather than cavitation SCHOOL'D!
David Ingram F18 USA 242 http://www.solarwind.solar"Do or do not. There is no try." - Yoda "Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall "You don't have to be a brain surgeon to be a complete idiot, but it helps"
| | | Re: Ultra Ever Dry? Effect on foils?
[Re: David Ingram]
#263591 09/11/13 11:16 AM 09/11/13 11:16 AM |
Joined: Dec 2001 Posts: 5,590 Naples, FL waterbug_wpb
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Posts: 5,590 Naples, FL | oh, like that's never happened to me before? Every day I walk through the door I get school'd about SOMETHING... until my evil master plan gets off the ground, that is....
Jay
| | | Re: Ultra Ever Dry? Effect on foils?
[Re: Tony_F18]
#283632 10/12/16 01:50 AM 10/12/16 01:50 AM |
Joined: Sep 2016 Posts: 1 ULTRA EVER DRY
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