Closed Cell Buoyancy Foam Test

[cape man]

Yeah...you won't be able to publish in the Journal of Naval Architecture without that data and at least 3 replicates of the trial.

But this down and dirty test should at least solve some of the arm chair pontificating on the subject.

[OrangeQuest]

But this down and dirty test should at least solve some of the arm chair pontificating on the subject.

Never will happen, never ever!

The floatation foam used has already been tested and passed the USCG standards for floatation by marine underwriter laboratory tests.

This test would need to go on forever to prove its ability to displace water for whatever the make-believe standard would be.

This foam has been tested in accordance with U.S. Coast Guard Regulation # 33 CFR 183.114 . This foam is approximately 95-98% closed cell which resists absorbing water, however continuous water submersion can eventually lead to loss of buoyancy over a period of years.

[Reid]

Shouldn't we get a proper scientific update with a whole weather forecast of the bucket? Like Temp, barometric pressure, and humidity?

Lol. I would but my barometer just broke last week.

[OneWayTraffic]

The thing with Foam tests is that you can’t emulate the motion of the boat or the effect of freeze thaw cycles. I’ve got Foam on my boat but it all cases it is installed where water can drain and air can get into ventilate. When foam does absorb water it is generally over a very long period of time so in my case I am assuming that I will be able to keep ahead of it and provide ventilation and inspect all compartments.

[Jaysen]

freeze thaw cycles

say whaaaaat?

We don’t do that in these parts!

[jonnymac]

who knows what the UL test actually consists of, they could generate a foam test sample that is something we could never recreate in our home garage.

and that isn’t the question here, the question here is does cut foam behave the same as uncut foam.

The floatation foam used has already been tested and passed the USCG standards for floatation by marine underwriter laboratory tests.

[pee wee]

and that isn’t the question here, the question here is does cut foam behave the same as uncut foam.

This! ^

[OrangeQuest]

who knows what the UL test actually consists of, they could generate a foam test sample that is something we could never recreate in our home garage.

and that isn’t the question here, the question here is does cut foam behave the same as uncut foam.

https://www.document-center.com/standar ... ASTM-D2842

I believe you can see where it goes over damaged cells as well. For the complete standard of tests, you can spend $54.00 and let the rest of us know.

Then you would apply these standards to test per the Fed gov regulations on floatation use in boats. And different types of foam can be used in different areas of the boat.
Like I stated, the floatation foams we buy and sold as floatation foam have passed testing.

[cape man]

I'll wait for Reid's results before responding...

[jonnymac]

thanks for posting that. the scope of the test. shows that this test covers how well does the foam maintain buoyancy in a short term single event situation. which is important, but It seems to me that the question most builders have. Is the cut cells going to increase water absorption overtime.

This test method covers the determination of the water absorption of rigid cellular plastics by measuring the change in buoyant force resulting from immersion under a 5.1-cm (2-in.) head of water for the specified immersion period of 96 h.

who knows what the UL test actually consists of, they could generate a foam test sample that is something we could never recreate in our home garage.

and that isn’t the question here, the question here is does cut foam behave the same as uncut foam.

https://www.document-center.com/standar ... ASTM-D2842

I believe you can see where it goes over damaged cells as well. For the complete standard of tests, you can spend $54.00 and let the rest of us know.

Then you would apply these standards to test per the Fed gov regulations on floatation use in boats. And different types of foam can be used in different areas of the boat.
Like I stated, the floatation foams we buy and sold as floatation foam have passed testing.