CONCRETE LAB GFRC Worktop Premix Kit Instructions

Table of Contents

CONCRETE LAB GFRC Worktop Premix Kit Instructions

Personal Protective Equipment

The following Personal Protective Equipment is advised during the mixing and use of the Premix Kit;

a. Gloves or Nitrile Gauntlets
b. Eye Protection (goggles or glasses)
c. Disposable Overalls
d. FFP3 Dust Mask

You will receive the following as part of each kit;

a. 1 bag of Base Mix
b. 1 pouch of Superplasticizer
c. 1 pouch of Glass Fibres
d. 1 pouch of Powdered Dye (except for Off-White)

Empty the contents of the base mix into your mixer/mixing vessel. DO NOT ADD THE FIBRES
Weigh out 3.12Kg or 3.12 litres of water
Mix the dry powered ingredients without adding the water. DO THIS ON A SLOW SETTING to reduce dust dispersion. Mix for 2 minutes.
Add approximately 2.5 litres (approx 4/5ths) of the water
Mix for 15 minutes
After 15 minutes of mixing check the consistency of the mix. Signs that the mix is ready are as follows;
A. Air is bubbling up through the mix and bubbles are popping at the surface
B. When a trowel is run through the mix, the mix self-levels and closes up within seconds
Add more water in small quantities as necessary until the desire consistency is reached.
Take a small portion of the mix to pour into the mould for a fibre free facecoat. Spread this evenly over the base of the mould. For 0.6 square metre of concrete worktop (1 bag mix) this equates to 4.7kg of mix at a thickness of 4mm.
Once the face coat is complete add the Fibres to the remaining mix and mix on a slow speed setting for as little time as necessary to ensure they are dispersed evenly throughout the mix. This should be no more than 2 minutes.
Pour the mix carefully over the facecoat already applied and proceed according to the Basic Concrete Casting Instructions PDF (available to download on our website).

Read User Manual Online (PDF format)