Removes heavy mineral soiling from floors and tiles. Dilute the concentrate (pH approx. 4.5) with water, most often 1:4; on glazed and polished tiles 1:4 or 1:5. Keep it off metals, galvanised and painted coatings and render. Consumption approx. 0.1-0.3 l per m².
Concrete and floorsD-4 removes mineral soiling from floors and tiles, with a milder pH than the rest of the D range - approx. 4.5.
That makes it the right choice for surfaces where D-2B or D-2W would be too aggressive. On glazed and polished tiles, dilute it 1:4 or 1:5.
Dilute with water from 1:5 to 1:1 - most often 1:4; never use the concentrate undiluted. Consumption is approx. 0.1-0.3 l per square metre, and you can work at 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 need time to season - 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.
Yes, if you choose a product that forms a polymer layer - it binds the loose particles on the surface and gives a dust-free finish. It 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 - choose a product approved for indoor use. With a solvent-based one, ventilate during application and for the period given in the product instructions.
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 helps - it limits the ingress of water and the salts dissolved in it.
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 removes efflorescence from resistant substrates. D-4 is around pH 4.5 and suits floors and tiles, including glazed and polished ones, diluted 1:4 or 1:5.
Consumption depends on how absorbent the surface is and how you apply the product.
Write to us with the area and the type of surface - we will help you work out how much you need.
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