The price of the pack says little about what sealing really costs. What counts is the cost per square metre, and that depends on three things at once: the price per litre, the preparation's coverage and the number of coats. On block paving the spread runs from roughly 4 to 29 złoty per metre - on a hundred-square-metre drive, a difference of some two and a half thousand.
Three things that multiply the cost
Price per litre.
The only one you see immediately - and the least decisive of the three.
Coverage in m²/l.
Given as a range: absorbent paving can take up to twice as much as dense paving.
Number of coats.
A second coat doubles consumption. It is what most often reverses the ranking.
Spare.
One pack above the sum - a later top-up is a different batch and can differ in shade.
The formula, and a hundred square metres
Litres = area ÷ coverage × coats. On an absorbent substrate work from the bottom of the range; on a dense one the top is realistic.
For a 100 m² drive and a preparation rated 5-10 m²/l in one coat, that is between 10 and 20 litres - two to four five-litre packs. Judging the absorbency alone changes the sum twofold, before you have compared a single product.
Why cheaper per litre can be dearer per metre
| Preparation | Price per litre | Coverage × coats | Cost per m² |
|---|---|---|---|
| Water-based wet look, one coat | lower | 6-8 m²/l × 1 | about 4-6 zł |
| Solvent-based, one coat | middling | 5-10 m²/l × 1 | about 5-11 zł |
| Wet look, two coats | higher | 8-10 m²/l × 2 | about 12-15 zł |
| Premium preparation, two coats | highest | 10 m²/l × 2 | about 29 zł |
The trap that reverses the ranking
Look at the third row. A preparation with better coverage than the solvent-based one above it works out dearer per metre - because it goes on in two coats. Price per litre and coverage on their own are not enough; only multiplied by the number of coats do they give a figure worth comparing.
Which is why every product shows, beside the price, the price per litre and, for preparations with a known coverage, the approximate cost per square metre.
Block paving sealers
Price per litre and cost per metre on each - pick one and cost your drive.
PremiumImpregnat do kostki brukowej - mokry efekt Wet Finish Guard Industry
169,00 zł
139,60 zł/L
PremiumSolvent-based block paving sealer, wet look SK-2 CTS Chemistry
60,27 zł
54,12 zł/L≈ 7,22 zł/m²
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StandardOil stain remover for concrete and paving OL-1 CTS Chemistry
55,20 zł
55,20 zł/L
StandardBlock paving sealer, wet look HK-2 CTS Chemistry
43,70 zł
36,00 zł/L
StandardBlock paving sealer, invisible finish HK-1 CTS Chemistry
31,89 zł
25,80 zł/L
StandardConcrete patio slab sealer, wet look HBP-2 CTS Chemistry
50,29 zł
45,76 zł/L
StandardConcrete patio slab sealer, invisible finish HBP-1 CTS Chemistry
48,50 zł
38,60 zł/L
StandardLime efflorescence remover D-2W CTS Chemistry
35,67 zł
30,50 zł/L≈ 7,63 zł/m²
Working out your own in two minutes
Measure the area, judge the absorbency with a glass of water - if it soaks in within fifteen seconds or so, the substrate is absorbent - and open the page of the preparation you have chosen. The calculator works out litres and packs from its coverage, not from an averaged figure.
The method and typical areas - terrace, drive, garage, ground-floor facade - are set out in the separate guide to quantity.
Common questions
What does sealing a 100 m² driveway cost?
The preparation alone usually runs between about 400 and 3000 złoty for a hundred square metres, depending on the product, the absorbency of the substrate and the number of coats. The low end is a single-coat water-based product on dense paving, the high end a premium preparation in two coats.
Is a dearer sealer better?
Not necessarily. Price tells you what a litre costs, not how a preparation will perform on your surface. First narrow the choice to your substrate and the finish you want, then compare coverage, coats, penetration depth and the cost per metre.
Is the larger pack worth it?
Usually yes - the price per litre at five or twenty litres is often noticeably lower than at one.
How much to allow for washing first?
Usually a few more złoty per metre, depending on how dirty the surface is. We show the cost per metre for cleaning preparations too, under cleaning and restoration.
Does sealing pay for itself?
It pays back mostly in effort: sealing limits water uptake, and paving that absorbs less means less scrubbing and easier washing. How much you gain depends on the surface, the traffic and the weather.
