Forum Discussions (4,869)

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Sand "blowback"

What may cause that a lot of sand bounces off from the mould? I have changed the Air pressure, airflow, W/C ratio. Can that be cauesed that…

Started by Brian Johns in GFRC

4 Sep 1, 2017
Reply by Brian Johns

Products for Sealing MDF

Hi all, I need to make a large mold and am looking for a product and method available in the UK for sealing MDF. Previously,i have biscui…

Started by Curt Bell in Forms

7 Aug 27, 2017
Reply by Tony and Liz, Brisbane

ICT failure from reaction to aluminum?

I'm hoping someone has seen this type of sealer failure and can give me some advise as to why this happened, and how (if at all) it can be…

Started by Adam Rossetto in Sealers

4 Aug 14, 2017
Reply by Adam Rossetto

cracking issue

(Warning...Lengthy) So I have a bit of a problem that I am looking to correct for future jobs. I have successfully been making overlay to…

Started by Brian Sheen in Newbie Questions

8 Aug 4, 2017
Reply by Brian Sheen

Fibre from NEG

I have never had NEG AR 1/2 inch fibreglass before. I want to ask if it is normal that separate fibres are od diffrent length? Or maybe the…

Started by Brian Johns in GFRC

1 Jul 31, 2017
Reply by Tom Fischer- Fishstone,CCS

AR vs E glass fiber - differences

It is possible to recognize the difference between AR glass fiber and E glass fiber at the first look? If I take those two kinds of fibers…

Started by Brian Johns in GFRC

6 Jul 25, 2017
Reply by Brian Johns

Adhering Concrete Blocks Together

Hi, I'm going to be making some wet pour concrete blocks that will be stacked on top of each other to form a small diving wall in my yard.…

Started by Jason Dimitrov in Untitled Category

1 Jul 18, 2017
Reply by Tom Fischer- Fishstone,CCS

Any advice for achieving this look on concrete countertops

Looking to achieve a certain color. Can't seem to post a photo

Started by L in acid stains and dyes

0 Jul 13, 2017

DIY Carnauba wax polish

I've been having some luck with this so I thought I'd share.  I've used this to polish a countertop after using a sealer-densifier product,…

Started by James Parsons in GFRC

0 Jul 13, 2017


I've got a problem when demolding a countertop. It bend when we lift it and now there's a little crack on each side of the sink but the cra…

Started by Jonathan in GFRC

4 Jul 13, 2017
Reply by Tom Fischer- Fishstone,CCS


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