A concentrate of pH approx. 4.5 for mineral soiling on floors and tiles. Diluted 1:5 to 1:1, most often 1:4; on glazed and polished tiles the manufacturer advises a weaker dilution. Consumption approx. 0.1-0.3 l per m².
Surface
Concrete and floors
The surface the manufacturer intends this preparation for.
D-4 is a concentrate with a milder pH than the rest of the D range - approx. 4.5 - intended for mineral soiling on floors and tiles.
That mildness is deliberate: it allows work on surfaces where D-2B or D-2W would be too aggressive. On glazed and polished tiles the manufacturer additionally advises a weaker dilution.
The dilution range is 1:5 to 1:1, most often 1:4; never undiluted. Consumption approx. 0.1-0.3 l per square metre, work up to 30 °C and 85 % humidity.
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.
A 1:4 dilution means one part product to four parts water - a litre of concentrate gives five litres of working solution. Where the ratio is given in ml per litre of water (the C range), work the other way: 50 ml per litre means 20 litres of solution from one litre of concentrate.
In strength. D-2W is around pH 2 and is for efflorescence on resistant substrates. D-4 is around pH 4.5 and is intended for floors and tiles, including glazed and polished ones at a weaker dilution.
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.