Epoxy Time

[mybigchevy]

Just got my Coroando Coropoxy 100% solid epoxy, The label says apply at 80 sqft for 20 mils or 120sqft for 15mils. I will be somewhere in the middle as i am doing 600sqft. I have enough epoxy for two coats 1200 sqft. Should i do two coats of epoxy? My plan is to grind my floor with an edco grinder with diamond stones, Next apply 1 coat of coropoxy primer, followed by two coats of epoxy at 15-20mils per coat,do a complete broadcast of chips, wich I am ordering 80 pounds from Torginol. and then apply 1 coat of clear at about 15 mils. I am a little scared to work with this product. It has a short pot life 30 mins at 75 degrees, It hasnt been below 80 degrees at night in months and avrg day time temps are from 100-115 degrees. I think it might be wise to wait till the eveing temps cool down a bit and do the aplication while the concrete is cooling down instead of heating up. I also have a question, Where my cabinets meet the floor the installers apply a bead of white silicon, should i remove this? or tape my cabinets off here and reply a bead of silicone their after the epoxy has cured. Thanks in advance for any help.

 

[LegacyIndustrial]

It sounds like a complete system.
Not sure why you need two coats of the intermediate coat, one should do it if you are using a primer.

If you attempt this in the warmer weather, add bodies.

Have one person mixing, one person buggy-lugging the material and one person rolling.

Good luck.

 

[iceman536]

2 coats @ 15+ mils seems like over over overkill. One coat at that thickness is plenty.

 

[mybigchevy]

I had originally planned on doing two coats of the color with no primer, after more reading I realized that a primer for the base coat was the way to go. Thanks for letting me no that two coats of color over the primer is overkill. I think I am going to hold off a few more weeks before doing the floor, waiting for some cooler weather and still making some final purchases. I have now decided to fill my expansion joints; I think a full broadcast would look funny with them? and I have a lot of them, my garage is broken down into roughly 7x10 sections, 8 sections total giving me about 82 feet of expansion joint. I am leaning toward the integraflex 1921 from alphagarage about how much would I need? I believe I read somewhere where they said that it should be compatible with most epoxies? Then there is the chips, found the color I like, they are going over a silver gray base at full broadcast, What are the opinions on size at full broadcast, I was thinking ¼ but am now leaning toward 1/16. I will be adding black chips to this combo also.

 

[AlphaGarage]

A one gallon kit of IntegraFlex 1921 will fill approx 165 cubic inches. If your joints are saw cut at 1/8", and an inch deep, there will be 123 cubic inches to fill (82 * 12 * 0.125). IntegraFlex 1921 is a 100% solids epoxy and should be compatible with like epoxies. It's self priming, so prep the concrete, and it can be applied before the primer coat.

After it's fully cured it will retain about 50% elongation, allowing it to move with slab expansion or contraction. That mitigates the possibility of visible surface cracks developing.

Smaller size flakes are more difficult to broadcast evenly, but with a broadcast to rejection that's less of an issue.