Need concrete expansion joint advice.

WARRIORWELDING

WARRIORWELDING

Owner opperator Of WarriorWelding LLC.
Joined
Jan 6, 2008
Location
Chillin, Hwy 64 Mocksville NC
My expansion joints are doing the job so far of keeping the slab in my shop for cracking unpredictability.
I have another problem that I think I need to mitigate immediately. The corners are eroding quickly. I try to sweep a lot but my tables are heavy and carry heavy weight. My casters are also mostly solid steel.
I think they should have sealed them from the start but now I don't want to waste money on something not effective.
I imagine I need something fairly hard.

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My research has netted all sorts of epoxy brands and recipes.

Anyone have first hand experience or recommend products?

Lowe's sells a this:
Crack Filler Gray Polyurethane 32-fl oz Repair https://www.lowes.com/pd/Sakrete-Crack-Filler-32-fl-oz-Polyurethane-Concrete-Patch/3093937

A friend did it on a fresh pour but he doesn't use his shop floor like I do. Says it is fairly hard.
 
Don’t put Polyurethane in them. Go to Guaranteed Supply in Winston and ask for Mike, tell him I sent you and ask for Quick Joint UVR.

That’s a Polyurea, which is semi-rigid. This will move with the slab, while also supporting weight for things like pallet jacks, fork lifts, etc. which in turn keeps those edges from chipping away.

You simply clean the joint of any debris, fill it full depth plus a little more. Wait 30 minutes and then shave it off flush with a razor blade. You have 24 hours to shave it.
I sold this by the pallet for high traffic warehouses. Many places require it now right from the start cause it saves the joints from doing just that.
 
77GreenMachine said:
Don’t put Polyurethane in them. Go to Guaranteed Supply in Winston and ask for Mike, tell him I sent you and ask for Quick Joint UVR.

That’s a Polyurea, which is semi-rigid. This will move with the slab, while also supporting weight for things like pallet jacks, fork lifts, etc. which in turn keeps those edges from chipping away.

You simply clean the joint of any debris, fill it full depth plus a little more. Wait 30 minutes and then shave it off flush with a razor blade. You have 24 hours to shave it.
I sold this by the pallet for high traffic warehouses. Many places require it now right from the start cause it saves the joints from doing just that.
Click to expand...
Thanks I didn't want to waste time on a Lowes Quality product. Does it require mixing like a two part epoxy?
 
Put concrete in them.
 
WARRIORWELDING said:
Thanks I didn't want to waste time on a Lowes Quality product. Does it require mixing like a two part epoxy?
Click to expand...

It is two component but it mixes in the nozzle as it comes out. You will need to buy, or borrow a special gun that fits the dual cartridge. You can buy one and return it after you’re done if you want, just keep it clean and new looking lol.

Don’t put concrete, or grout in them lol
 
I can hook you up with some used phenolic casters. Got at least 3 sets of 4.
 
Also have researched a bit more. Found two brands of the fancy poly stuff that offer a shore hardness of Shore A of 90 or little more. Very specific and seems very expensive.....but cheaper then the failing edges that have my stomach churning.
 
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PAT Ventures said:
I can hook you up with some used phenolic casters. Got at least 3 sets of 4.
Click to expand...
I tried some of these on a platform specific to moving a stamping die.....read heavy. It took enormous effort to get rolling. My hard casters roll fairly easy. Last time I accidently dropped the corner of my table from 4 inches off the ground.....long dumb story the solid metal caster exploded. Dropping it was a bad deal but its damn heavy.

The other part is I have painstakingly built all my stuff to match in height. All of that matches my shear table height. I cannot let all that get screwed up royally.
 
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