Concrete waterproofing · Deep penetrating sealer

Top performance. Factory pricing. Global supply.

One coat. Permanent. Direct factory pricing. Xile DPS penetrates concrete and bonds inside the slab — waterproofing and protection in a single water-based, non-toxic application. Twenty-five years of one chemistry, shipped to your project worldwide.

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Dark studio render of a porous concrete cube: water cascades into it from above, luminous molecular bonds trace through the block, and water pools at its base.
Performance

What the chemistry does, measurably.

  1. 01

    30 mm

    Depth of penetration

    Most surface coatings sit within the top 1 mm. Xile DPS works through the capillary network of the slab itself.

  2. 02

    + 30 %

    Compressive-strength gain

    Measured on treated substrates. The silicate reaction densifies the matrix from within.

  3. 03

    − 36 %

    Chloride ion ingress

    Treated panels absorbed up to 36% less chloride than untreated controls (CNS1232 / ASTM C39). The mechanism that drives reinforcing-steel corrosion in road-salt and marine exposure.

  4. 04

    800 °C

    Thermal stability

    Specified in waste-incinerator concrete protection. Heat resistance plus monolithic substrate integration — an envelope organic and hydrophobic sealers cannot enter.

  5. 05

    One coat

    Single application

    No primer, no topcoat, no recoat cycle. Water-based; compatible with standard low-pressure spray or roller equipment.

The chemistry

Xile DPS doesn’t sit on concrete.
It reacts with it.

Concrete is porous. Every slab contains an internal network of capillaries and free calcium hydroxide left over from the curing process — the same calcium hydroxide that conventional sealers sit on top of and eventually fail against.

Xile DPS is a deep penetrating sealer — a low-viscosity solution of silicate chemistry in water. On contact with concrete, it penetrates the capillary network and reacts with free calcium hydroxide to produce calcium silicate hydrate — the same mineral phase that gives cured concrete its strength.

The reaction product is permanent, inorganic, and indistinguishable from the concrete matrix it forms within.

Reaction Ca(OH)2 + SiO2 · nH2O → C–S–H + H2O

FIG. A Conventional surface coating
~1 mm film

Action — surface only

Capillaries remain open below the film. Failure mode: abrasion, UV, freeze-thaw.

FIG. B Xile DPS reaction zone
10 20 30 mm

Action — reaction at depth

Capillary network reacts with free Ca(OH)2 and forms C–S–H. The slab densifies from within.

Schematic cross-section. Silicate solution → reacted C–S–H within the capillary network. Reaction product is the same mineral phase that gives cured concrete its strength. Not to scale; depth markers reference the achieved penetration range, not absolute substrate thickness.
Applications

Specified where concrete has
to last longer than the warranty.

Why Xile DPS

Some sealers coat. Some repel.
Xile DPS reacts from within.

Dimension Xile DPS inorganic silicate Film-forming acrylic, polyurethane Hydrophobic silane, siloxane
Mechanism Reacts within the capillary network Coats the surface Repels water at the surface
Service life Permanent once reacted 2–3 yrs before re-application 5–7 yrs before beading loss
Traffic performance Densifies the substrate itself Wears under abrasion; shows tire marks Not load-bearing; cosmetic-only on floors
Chloride ingress 20–36 % less ingress at depth (CNS1232 / ASTM C39) Surface coating only; ingress continues below the film Repels water at the surface; chloride continues at depth
Thermal envelope Stable to 800 °C — used in waste-incinerator concrete protection Degrades at elevated temperatures Limited above ~150 °C
Re-coat cycle Single application Required every 2–3 yrs Required every 5–7 yrs
Substrate impact Increases compressive strength +20–30 % Reduces vapor breathability Neutral

Conventional sealers treat the surface. Xile DPS changes the slab.

Read: concrete densifier vs penetrating sealer

Field application

Iconic project.
Mongu–Kalabo Road, Western Province, Zambia. 2015.

Mongu–Kalabo · Zambia Aerial view of a Mongu–Kalabo Road bridge crossing a Zambezi tributary, with the Barotse Floodplain extending to the horizon.
Aerial view of a road junction on the Mongu–Kalabo causeway, with seasonal floodwater visible across the surrounding plain.

Aerial views of the Mongu–Kalabo Road causeway and bridge crossings, Barotse Floodplain, Western Province, Zambia.

Project type
34 km embankment causeway across the Barotse Floodplain, 26 reinforced-concrete bridge decks. Belt and Road infrastructure delivered by MBEC.
Substrate
Newly cast reinforced-concrete bridge decks on a sand-and-gravel embankment through one of Africa's largest seasonal floodplains. No competent rock substrate in the region; decks designed for sustained saturation and cyclic flood loading.
Conditions addressed
Capillary water ingress under seasonal Zambezi flood inundation; high humidity, prolonged surface saturation, and abrasive sediment transport during the rainy season.
Application
Single-coat penetrating silicate densifier on all 26 bridge decks during the 2015 construction phase. Supplied direct to the bridge contractor.
Result — ten flood seasons
Decks have remained in service through ten consecutive Zambezi flood seasons since application.
Next step

Bring Xile DPS into
your next specification.

Send us the shape of your project — substrate, conditions, scale, timeline. The Xile DPS team will walk it through with you: compatibility, coverage calculations, sample evaluation, pricing and lead times.

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Common questions