GFRC (1,801)

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Hi all, I've just demold a countertop and find these spot all around the top. Someone can explain me why it does this and how not to happe…

Started by Jonathan

6 Jul 6, 2017
Reply by Jonathan

Pouring Gfrc sink

Hi guys, have been having sleepless nights thinking about this sink. I have never poured gfrc before. As you can see from the images it's o…

Started by Barry

6 Jun 21, 2017
Reply by Barry

lehigh VS Federal white portland cement

Have any of you noticed color variation from Federal white vs Lehigh white portland?   I used Lehigh for the first time today.  I have alwa…

Started by Jason Trihey

1 Jun 19, 2017
Reply by Jon Schuler

Looking for help

So I poured a bar top myself (first timer with concrete) and everything turned out great until I left a putty knife and a sanding sponge si…

Started by Jake

1 Jun 15, 2017
Reply by Benjamin Cunin

The true colour of grey concrete ?

Hi everybody,  I ve been playing with grey cement in my GFRC mix and I wondered if you guys have been having issues with colours on counte…

Started by ilkka salo

4 Jun 15, 2017
Reply by Benjamin Cunin


Hi all! I've got a cross ghosting in a concrete table top. I wanted to get more strength since it's 2inches with 1inch foam core, so i've l…

Started by Jonathan

4 May 16, 2017
Reply by Jonathan

Sink Drain

Does anyone know where I can purchase a drain plug for bathroom sink ?

Started by john henry burns III

3 May 15, 2017
Reply by john henry burns III

Rps sealer v ict

Hi guys, I'm been using buddy Rhodes rps sealer. The stain results are good but it changes the look of the concrete look I find. Any of you…

Started by Barry

3 May 2, 2017
Reply by Jon Schuler

Using urethane as bonding agent?

I'm patiently waiting on my first countertop to cure. The ones my home builder did he used a slurry to fill bug holes. It's very diffrent i…

Started by Jeff

4 Apr 18, 2017
Reply by Jeff

Finishing Concrete Sink

I poured my first countertop with an integrated sink and the finish of the sink came out a lot rougher than expected. I had built the mold…

Started by Nick Scheuermann

8 Apr 16, 2017
Reply by josh lilly


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Fishstone's Super-SIX-Admix™ is a proprietary blend of SIX different admixtures designed to achieve pinhole free, dense and strong concrete that will free flow in precast molds.  Super SIX makes it easy to produce Ultra high performance concrete (UHPC), also known as Engineered Concrete Composition (ECC) and Reactive Powder Concrete (RPC).  Super-SIX™  is a non-hazardous material utilizing the newest and most advanced technologies.

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