from $255.90 /container
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NOTE:, Because it is at risk of freezing, it cannot be transported through low temperatures for extended periods of time.

1-3 4+
VISCONN 10L - BLUE (DRIES BLACK) $255.90 $237.99
VISCONN 10L - WHITE $261.20 $242.92

Product Specifications

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Liquid-applied air barrier for robust connections. For use as WRB, flashing for pitched windows sills, and other detailing. VISCONN can be brushed, rolled or sprayed on as a liquid film and dries to form a seamless, elastic, airtight and vapour-variable membrane.


10L (2.5 Gallons)/ container

Coverage per container:
~11.5 m2 (125ft2) when applied with brush
~16 m2 (170ft2) when applied with airless sprayer
[coverage dependent upon applied thickness]


  • Time-saving airsealing of difficult junction because of airless spray/brush application
  • PHI-Certified airbarrier - for interior with vapour-variable properties
  • IFT Rosenheim certification as airtight/waterproof joint sealing for insulated window frame rough opening gaps
  • For use as WRB on exterior behind rainscreens when shielded from long term UV exposure
  • Excellent values in the hazardous substance test, has been tested according to the AgBB evaluation scheme / ISO 16000
  • Use appropriate safety protection when using airless sprayer
  • Available in two color options: one that is blue when wet and dries black to confirm drying, one that is white when both wet or dry


  • Apply to walls, ceilings and floor surfaces, such as masonry, CMU, wood sheathing, fiberboard, joists or joist bays
  • Reliably fills gaps of 1/8”; deeper joints or thick coats result in longer cure times
  • Highly porous/uneven materials require 2 or more coats for reliable coverage/airsealing
  • It may be necessary to apply more than one coat in the case of uneven or rough subsurfaces
  • Can be plastered/painted over, Pro Clima adhesive tapes can be bonded onto it (and can be sprayed over all TESCON/CONTEGA Pro Clima tapes)


  • Material: Aqueous acrylic dispersion
  • Passed ASTM E331/ IBC - 1403.2 (300PA for 2 hours) for WRB code compliance
  • Temperature Resistance: -40°F to 176°F
  • Perm Rating: 0.5 perms (6.11m ±0.6 m) at 11 mils (0.3 mm) thickness EN 1931
  • Vapour Variability ISO 12572: 0.33 to 25 perms (Sd: 0.13 – 10.00 m)
  • Recommended airless sprayers: Graco Hi-Boy 390, 395, 490, or 495 - see Reference Downloads for guide
  • UV/weather Resistance: 3 months of exposure