Applications

VISCONN is a fluid applied air barrier system made from water-based acrylic dispersion. VISCONN can be applied using an airless sprayer, AEROFIXX application tool, paint brush or roller to air seal masonry walls, CMU, concrete, wood, and common air sealing connections such as rim joists. The membrane forms a seamless, elastic air barrier and vapor permeable membrane once cured.

Advantages

• Time-saving airsealing of difficult junction because of airless spray/brush application
• PHI-Certified air barrier - for interior with vapor-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

Substrates

• 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 and 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)

Properties

• 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: 28 perms
  
• Recommended airless sprayers: Graco Hi-Boy 390, 395, 490, or 495 - see Reference Downloads for guide
• UV/weather Resistance: 3 months of exposure
• Low VOC per SCAQMD limits, 
• LEEDV4 passed CDPH v1.2 for Private Office and School Classroom (PO and SC)
• Living Building Challenge RED list free