Epoxy over two part polyurethane foam

[GILow]

Originally Posted by john61ct

Great, Sika's the bee's knees

but wrt the topic, not an epoxy

Nope, it's a " one-component, UV resistant, highly elastic, moisture curing polyurethane waterproof membrane."



Interesting though... I mean fibreglass water tanks used to be the norm on boats, at least in Oz. I assume they would have been polyester, maybe vinylester in some cases. And generally, epoxy seems less "reactive" than either of those.

I wonder if we are all getting more paranoid, or smarter, with our current, more cautions approaches to this stuff.

[john61ct]

My "school bus" used to be the teacher a 4WD truck driving 50 miles across the paddocks all the kids piling into the open bed..

Somebody's fencing broke we all helped chase the stock down, takes too long no school that day.

Kids all out free-ranging for days at a time, nobody worried.

7 years old birthday got my own 22, hunting dinner (rabbits) on my own for hours.

Yes, life was cheaper then, why you had more kids, in case you lost a couple.

[GILow]

Originally Posted by john61ct

My "school bus" used to be the teacher a 4WD truck driving 50 miles across the paddocks all the kids piling into the open bed..

Somebody's fencing broke we all helped chase the stock down, takes too long no school that day.

Kids all out free-ranging for days at a time, nobody worried.

7 years old birthday got my own 22, hunting dinner (rabbits) on my own for hours.

Yes, life was cheaper then, why you had more kids, in case you lost a couple.

Don’t know if it is nostalgia speaking, but somehow that all seemed like we had a lot more fun as kids then than the current generation.

[john61ct]

Yes, I firmly believe trying to shield kids from risk is a tragic trend, not just for "childhood fun" but the quality of the resulting adults.

Being a good parent requires being willing to risk their getting traumatized, maimed even killed.

Keeping them in a cushioned bubble is the height of selfish irresponsibility.

[GILow]

Originally Posted by john61ct

Yes, I firmly believe trying to shield kids from risk is a tragic trend, not just for "childhood fun" but the quality of the resulting adults.

Being a good parent requires being willing to risk their getting traumatized, maimed even killed.

Keeping them in a cushioned bubble is the height of selfish irresponsibility.

I wholeheartedly agree.

However, watching my son make his first solo flight at the age of fifteen did kinda test my resolve to be a good parent and let him take risks.

[john61ct]

Yep, that's one of the hard parts of being a parent, but there's no healthy way to avoid it.

[GILow]

Back on topic, for anyone who finds this thread because they had the same question I had, the epoxy over the two part foam is working very nicely so far. No weird behaviour and the stuff didn’t dissolve as I feared it might.

[Icarus]

Originally Posted by robwilk37

what are your plans for the final interior coating for the tanks? im not aware of an NSF compliant small tank coating. i built integrated tanks too but in the end had to fit custom bladders for potable water...

I used Acrylic polyurethane to paint the fridge interior. Make sure the poly cures properly, there is no bad taste or smell.
U also can get a food grade poly paint.I used it for my steel water tanks...no problem at all.