WHAT IS PENETRON CRYSTALLINE WATERPROOFING?

Authorized PENETRON (USA) applicator in Vietnam

PENETRON penetrating crystalline waterproofing treats water from inside the concrete structure, instead of only forming a coating on the outside. ANTINCORP consults, supplies materials and organizes application according to the real conditions of each project.

Crystalline waterproofing is a method of treating leaks from inside a concrete structure. The material penetrates through the capillary network and reacts with moisture and components already present in the concrete to form insoluble crystals that seal the water paths. Unlike a membrane that only covers the outside, the protective layer sits inside the concrete. For products and quotations, see genuine PENETRON materials.

How does crystalline waterproofing work?

Concrete has a network of tiny capillaries. Water and chemicals travel through this network, causing leaks, corroding reinforcement and shortening the life of the structure.

PENETRON crystalline material contains active ingredients that react with moisture and the components already in the concrete to form insoluble crystals that fill capillaries and fine cracks. Water can still cause dampness again, but the leak path has been sealed over time.

Because the action happens inside the concrete, the waterproofing does not peel like a surface coating under reverse water pressure or light vibration.

Crystalline waterproofing versus membrane waterproofing

CriterionCrystalline (PENETRON)Waterproofing membrane
MechanismPenetrates and forms crystals inside the concreteForms a film on the surface
Application sidePositive or negative side (per manufacturer)Usually applied on the water-bearing side
If the surface is scratchedThe waterproofing sits inside the concrete, so it is little affectedA torn or punctured membrane can lose effect locally
Surface requirementClean, rough, wetted to saturationUsually needs a dry, flat substrate with primer
Large cracks, leak pointsTreat first with PENECRETE MORTAR, PENEPLUG or injectionAlso needs prior treatment, depending on membrane type

Suitable applications

The PENETRON product system

ANTINCORP's application process

  1. Condition survey: identify leak locations, causes, water pressure and condition of the concrete.
  2. Surface treatment: remove weak layers, dust and grease; widen cracks and patch with repair mortar; stop leaks with PENEPLUG if water is flowing.
  3. Wet the surface to saturation without standing water so the crystals form properly.
  4. Apply PENETRON at the coverage rate and number of coats recommended by the manufacturer.
  5. Moist-cure so the material reacts fully.
  6. Acceptance: surface inspection and water testing when the work item requires it.

Frequently asked questions

How does crystalline waterproofing differ from membrane waterproofing?

A membrane forms a water barrier on the surface; crystals penetrate inside and seal the concrete’s capillaries. The two suit different locations, so a survey is needed before choosing. For concrete under constant water pressure such as basements and tanks, crystalline waterproofing is widely used.

Can it waterproof from the inside when water comes from outside?

It can. Crystalline material penetrates deep into concrete, so it can be applied on the inside of a basement or tank when the outside is not accessible. Effectiveness depends on the quality of the concrete and the accompanying treatment of cracks and joints.

Does Penetron treat cracks?

The crystals can self-seal very fine cracks when moisture is present. Large or moving cracks must be opened and filled with repair mortar or injected before coating.

What information is needed for a quotation?

The type of work item (basement, tank, roof…), approximate area, photos of the current condition and the leak locations. ANTINCORP will survey and propose a suitable solution.

Is crystalline waterproofing durable?

According to the manufacturer, the crystals become part of the concrete and can continue to react when moisture is present. Real durability also depends on the concrete quality, crack treatment and correct application.

On which projects has ANTINCORP applied PENETRON?

For example, waterproofing and repair of a 4,320 m² wastewater treatment (WWTP) tank at the MEN CHUEN factory. Every project is surveyed before a solution is proposed.

See also