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Skoolies and glass block Jason 12-7-05  
I have a 72 passenger bus with a full size 8 person jacuzzi inside. (this is actually my 2nd jacuzzi bus)

here is the bus' website:

http://geocities.com/blackplaguetour/

I want to build a glass block half-wall between the jacuzzi and the living quarters. The wall will look cool, while helping to keep some of the water contained to the rear of the bus.

The question is what should i use as mortar? In my previous conversion i used Solar Seal, an adhesive/calk material. It took weeks to dry, and wasn't as strong as i would have liked. I originally kept away from standard mortar due to the vibration. I wanted to block to be able to tollerate the bus enviroment without cracking.

Anyone know what i should use for glass block mortar in my skoolie?
Re: Skoolies and glass block Phil Feinstein 12-8-05  
Exceptionally Kewl!

As an aside, 1 gallon of water is 8# so 400 gallons would be 3200#, but a 4000# estimate gives you a great saftey factor (25%).

I have some experiance with concrete block and brick and I agree that a standard mortar won't survive in a mobile environment. I'm not surprised that the caulk didn't work, since that isn't much more than an adhesive and has no tensile strength.

Here's what I'd suggest: build a framework out of steel or a good water resistant hardwood (i.e. Teak) and seal the glass block to the framework using Solar Seal or a good silicone caulk. The members would need to keep the block at least 1/2 an inch apart to allow the frame to flex without loading up the glass block and cracking it. If you could keep an 1/8 to 1/4 inch of sealer between the frame and the block, the block would be completely isolated and removed from all the loads experianced by the framework.

just my.02, but I hope that helps!
Re: Skoolies and glass block arkie 12-23-05  
I think CLEAR 100% silicone caulk would be PERFECT!
Re: Skoolies and glass block Jason 1-9-06  
"As an aside, 1 gallon of water is 8# so 400 gallons would be 3200#, but a 4000# estimate gives you a great saftey factor (25%)."

You forgot to add 800 pounds for the jacuzzi.

and if you want to get technical a pound of water weighs approximately 8.33 pounds per gallon @ 20 degrees C.
Re: Skoolies and glass block Phil Feinstein 1-10-06  
Absolutely correct, Jason. Good catch ;-)
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