AQUAFIN®-2K/M

2-comp., flexible, polymer-modified, cementitious waterproof coating

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Properties:

AQUAFIN®-2K/M is a flexible elastomeric, 2-comp. polymer modified coating that waterproofs and protects concrete, masonry, brick and some natural stone substrates with crack-bridging properties. AQUAFIN®-2K/M has excellent adhesion characteristics and provides a seamless system which can be left as the finished surface, or can be top-coated with tiles, pavers, paint or other coatings.

Key Features and Benefits:

  • Crack bridging up to 2.59 mm.
  • Easy to use – can be brush, spray, roller or trowel
  • Vapour permeable
  • Waterproof- resistant to 7 bars (positive side water pressure).
  • Can be tiled or left uncoated
  • UV, weather and freeze-thaw resistant.
  • Bonds well to damp substrates without priming
  • Environmentally friendly.
  • Resistant to concrete aggressive water according to DIN 4030.
  • Potable water approval according to DVGWW347.
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Areas of Application:

The substrate must be damp during the application. AQUAFIN®-2K/M can be applied by brush, trowel, roller or appropriate spray equipment. At least two coats of AQUAFIN®-2K/M are necessary. The applied thickness of the waterproofing must correspond with the required minimum thickness for the expected wet-duty conditions. Only apply the second layer when the first coat will n 4 hours at the earliest. Due to the possibility of crack formations avoid applied thickness greater than 2 kg/m2 (-1 mm fry film thickness) in one application to prevent the formation of cracks. For protection of the AQUAFIN®-2K/M waterproofing the ASO®- Systemvlies-02 may be embedded into the last layer.

Technical Specifications:

  • Adhesion strength : approx. 1.5 n/mm2 at 28 d.
  • Tensile strength : 4.2 N/mm2. (ATSM D 412-98a).
  • Elongation : 115% (ATSM D 412- 98a).
  • Crack bridging : 2.59 mm (ATSM C 836:95).
  • Water permeability : Nil at 5 bars (BS EN 12390).
  • Abrasion resistance :109 mg (ATSM D 4060:01).
  • Shore ‘A’ : approx. 8.5
  • Initial surface absorption : Nil (BS 1881 Part 208:96).
  • Rapid chloride permeability : 86% reduction (ATSM-C 1202.97).
  • Vapor diffusion Resistance number : approx. 1,000 p.
  • Sd-value : approx. 2 m.
  • Sd-value, CO2 : approx. 211 m.
  • Flammability class : B2 (DIN 4102 Part 1)

Product Application:

The surface must be clean, sound and fine pored
The surface must be clean, sound and fine pored. It must be free from grease, dust, pockets, cracks and ridges. AQUAFIN®-2K/M is suitable for smooth concrete, screed, mastic asphalt, plaster, gypsum board and masonry. Coarsely pored surfaces like gutter blocks or precast concrete blocks must be grouted with cement mortar, ASOCRET FS or AQUAFIN®-1K. Prime highly absorbent surfaces like light weight concrete or gypsum boards with ASO®-Unigrund to improve adhesion. Use suitable methods to prepare the substrate-dependent on its condition such as e.g., brushing, vacuuming, grinding, milling, shot blasting and water jetting.

Application Mixing:

Pour approx. 2/3 of the liquid component UNIFLEX®- M into a clean container and add AQUAFIN powder component whilst stirring until a lump-free mass is achieved. A mixing time of 2-3 minutes is required. After that, add the remaining UNIFLEX-M and stir until a uniform consistency is achieved. NOTE: Depending on the application, max 1.5% (approx. 0.5 l / 35 kg) water can be added during mixing in order to adjust application consistency.