The PENETRON system

Ordinary concrete carries a network of micro-cracks, pores and capillaries. PENETRON turns that network into crystal.

Typically 0.1 to 0.5 mm wide, those channels are how water travels. Crystalline technology grows insoluble needle-like crystals into the voids, so the concrete becomes impermeable from any direction — for the life of the structure.

Microscopic view of crystal growth inside concrete capillaries

The technology

How crystalline waterproofing works.

  1. 01

    Untreated concrete

    Micro-cracks, pores and capillaries let water enter the matrix.

  2. 02

    Application

    Mixed in at batching, or applied to the surface of existing concrete.

  3. 03

    Chemical reaction

    Active chemicals react with water, calcium hydroxide, aluminium and salts.

  4. 04

    Crystal formation

    Insoluble needle-like crystals grow into and fill the voids.

  5. 05

    Permanent seal

    Water cannot pass. The concrete is impermeable from any direction.

  6. 06

    Self-healing

    Dormant chemicals reactivate on contact with water and seal new cracks.

Pore width sealed
0.1 – 0.5 mm
Cracks self-healed up to
0.5 mm
Verified in the field
Microscopic analysis of cores from Changi Airport Terminal 3 retaining walls confirmed crystal growth inside the cracks.

Solutions

Four methods. Six products. One certified team.

Admixture

PENETRON ADMIX

Crystalline admixture added at the batch plant, dosed at 0.8–1% of cementitious weight. Makes the full concrete section permanently waterproof from any direction.

Admixture · liquid

PENETRON ADMIX LIQUID

Liquid crystalline admixture dispensed automatically at the batch plant, for high-volume, consistency-critical pours.

Admixture · soluble bag

PENETRON ADMIX SB

Soluble-bag crystalline admixture for addition at the truck mixer where plant dosing is not practical, applied using the approved product method.

Coating

PENETRON

Brush- or spray-applied crystalline slurry for waterproofing and chemical protection of existing concrete, above and below grade.

Repair mortar

PENECRETE MORTAR

Crystalline structural repair mortar to EN 1504 Class R4 (45 MPa) for cracks, form-tie holes, honeycombing and non-moving joints.

Waterstop

PENEBAR SW-45

Swellable waterstop strip for construction joints, pile heads and service penetrations. Supported by PENEPLUG and PENETRON INJECT for active leaks.

How it is added · Method 1

At the central batching plant.

The recommended way: dosed under our trained technical team.

  1. Precise dosing at the plant
    01

    Precise dosing at the plant

    Materials are added in precise proportions, managed and carried out by the trained technical team at the central batching plant.

  2. Transport to the project
    02

    Transport to the project

    The treated concrete is transported to the project like any other ready-mix — no membrane, no extra trade.

  3. Pouring on site
    03

    Pouring on site

    Pouring is completed on site, with the concrete becoming waterproof from any direction.

Factory dosing with ADMIX LIQUID

  1. 01Verify the dose

    Confirm the approved mix, product and cementitious content. Check calibrated dispensing equipment.

  2. 02Coordinate batch water

    Follow the approved addition sequence. Include the liquid within the total batch-water calculation.

  3. 03Check and document

    Confirm uniform mixing and fresh-concrete checks. Record dosage, batch identification and inspection results.

How it is added · Method 2

At the truck mixer, approved by the manufacturer.

For addition on site where plant dosing is not practical, in three steps.

  1. Pre-mix in 22 litres of water
    01

    Pre-mix in 22 litres of water

    Add one bag of PENETRON ADMIX to 22 litres of water and mix mechanically for long enough to become homogeneous.

  2. Add to the truck mixer
    02

    Add to the truck mixer

    Add the mix to the concrete truck with the drum rotating at high speed for 10 minutes from the start of the addition.

  3. Pouring on site
    03

    Pouring on site

    Pour the concrete on site.

Dosage and method statement are agreed before the first pour and documented for handover.
Pre-pour inspection of a raft foundation, Jeddah

Supervised on site

Present at batching and at application — not a delivery note.

  • Confirms system, dosage and mix compatibility
  • Supervises batching and dosing at the plant
  • Supervises the drum addition on site
  • Documents quality records for handover

Independent testing

Zero water penetration after seven days at seven bar.

Penetration of water under pressure, NBR 10.787/94 — tested at IPT, the Technological Research Institute of São Paulo State, on CPII-E 32 concrete dosed at 1% by weight of cement.

Cement consumption (CPII-E 32)350 kg/m³
Compressive strength20 MPa
Fine sand388 kg/m³
Coarse aggregate 0 / 1421 / 632 kg/m³
Water192 kg/m³
Water / cement ratio0.54
Slump90 ± 10 mm
Superplasticizer0.3–0.4 % / m³
PENETRON ADMIX dosage1% by weight of cement
Day 1–20.1 MPa
Day 30.3 MPa
Day 4–70.7 MPa
Result after 7 days at 7 barZero water penetration7 bar · 7 days

Scope on site

Where we apply it.

Construction joints, slab-to-wall details and penetrations are treated with PENEBAR SW-45 and crystalline slurry; the section itself is dosed with ADMIX at batching.

  • Raft foundations & footings
  • Retaining walls & basements
  • Water tanks & reservoirs
  • Swimming pools
  • Slabs on grade
  • Industrial flooring
  • Pile heads & penetrations
Pile cap reinforcement prepared for a raft foundation

Let’s work together

Send us your drawings and exposure conditions.

We come back with a specification, a dosage and a method statement — not a price list.

Start a conversation
Office
Office 8357, King Abdulaziz Road
Jeddah 23523, Kingdom of Saudi Arabia