Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.

Should you require training, visit - https://www.safeusediisocyanates.eu/

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• Features & Benefits
• Application
• Limitations

Features & Benefits

• Uses:
  • Waterproofing tunnels subject to high pressure water ingress through possible cracks or in fissures between keystones
  • Waterproofing shafts or hydraulic structures with high pressure water ingress through working joints or cracks
  • Repairing cracks in dams, channels and bulkheads when permanently immersed in water
  • Sealing cracks in floorings or slabs that are damp or saturated with water
• Two-component polyurethane, halogene free resin, having very high reactivity and excellent mechanical performance and chemical stability
• Forms a polyurethane foam of great strength
• Due to its rheological properties, Foamjet T can also penetrate through small cracks and sealing them even if they are subject to water infiltrations
• At the end of the setting time, within a few seconds, depending on the temperature, Foamjet T becomes completely waterproof and ensures an adequate consolidation to the treated structure
• Meets the requirements defined by EN 1504-9 (“Products and systems for the protection and repair of concrete structures. Definitions, requirements, quality control and evaluation of conformity. General principles for the use of products”) and the minimum requirements claimed by EN 1504-5: U(S1)W(3)(1/2/3/4)(5/35) (“concrete injection”)

Application

• Sealing cracks by injection:
• Positioning the injectors Make off-set holes on the sides of the cracks
• The size of the holes should fit the diameter of the injectors that will be used
• Expansion injectors with a non-return valve can be easily fixed by self-tapping completely to the walls of the hole
• If there is no water ingress, normal copper, steel or PVC tubes with a diameter of approximately 10 mm can be used
• The two components that make up Foamjet T must be mixed together by a special pump for two-component resins
• In order to carry out injection, Foamjet T part A and Foamjet T part B in the ratio 1:1 by volume, must be separately conveyed through the pump and into the nozzle previously placed on the injector and mixed by a helicoidal mixer placed within the nozzle. After mixing, Foamjet T must be injected continuously through the crack
• When the two components are mixed, the viscosity of the mixture increases substantially, therefore the injected mixture will not separate or be washed out by the water pressure. The increase in volume of the foam and its fast reaction stops the water ingress within a few minutes. In the absence of water, Foamjet T hardens without increasing in volume and rapidly seals the crack. NOTE: components A and B must be mixed thoroughly before use in order to blend in any additives that may have settled. Component A may become more viscous if stored at low temperatures
• Clean injection equipment (pump and tubes) with mineral oil, free of water and impurities after use.
• The consumption of the product depends on the size of the void volume to be filled and the foam expansion factor after mixing the two components, in relation to the amount of water present
• PACKAGING 44 kg units: – part A = 20 kg; – part B = 24 kg

Limitations

• Foamjet T is particularly recommended for waterproofing large areas where there is water ingress, also under pressure
• Foamjet T part A might be affected by a significant viscosity increase, when stored at low temperature
• Temperature influences the hardening time of Foamjet T; temperatures lower than +15°C lengthen setting time
• It is therefore recommended to seek information from our technical service before injection takes place in structures that are subject to high pressure water ingress