A ready-to-use product for white and coloured grout and cement joints. No dilution - it is applied straight onto the joint. pH approx. 11.5.
Surface
Concrete and floors
The surface the manufacturer intends this preparation for.
C-12F is the only product in the C range that is ready to use - it is not diluted. It goes straight onto the joint.
Its purpose is narrow, and that is the point: white and coloured grout, and cement joints. The product is alkaline (pH approx. 11.5) and works on the discolouration that stays in a joint after the floor has been washed.
The 0.75 l pack matches the scale of the task - this is a spot product, not one for washing whole areas.
Concrete accepts a sealer only when it is dry, clean and seasoned. A fresh slab is still giving off mix water and will push any coating off with it.
A new floor and fresh precast units have to season. Manufacturers give that period on the data sheet; for precast concrete it is usually around 28 days.
Before sealing the whole area, test on a patch hidden by a planter or in a corner of the patio. The same product can read differently on two batches of the same material, and on a surface with old coating left on it, it will not bond at all.
Products that form a polymer layer bind the loose particles on the surface, and manufacturers describe them as dust-free. That is not a substitute for a hardener where the concrete itself is dusting because it was poorly floated - the problem is then in the slab, not on it.
Yes, if the technical data lists indoor use. With solvent-based products you have to ventilate during application and for the period the manufacturer states.
Remove them before sealing, with an oil stain remover. A sealer applied over a stain seals it in and fixes it - oil will not evaporate through a sealed layer.
It limits the ingress of water and the salts dissolved in it. How far that goes depends on the product, and we quote it from the manufacturer's data sheet rather than generalising.
The manufacturer states white and coloured grout and cement joints. Epoxy grout is a different material - we do not assume it on the manufacturer's behalf; test in an inconspicuous place first.
That depends on whether the discolouration is a deposit or a permanent stain in the binder. A deposit comes off; a dye that has entered the cement usually does not.
The technical sheet and safety data sheet will be available after approval.
This product has no stated coverage yet, so we cannot work out the requirement.
The calculator starts once the manufacturer states the coverage.
Go directly to the right category. We do not imply compatibility across materials.