Applications

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.

Advantages

• 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
• 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 up to 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: 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
• NBC 2020- 9.36.2.9 Air Barrier Systems Passed air leakage <0.02 L/(s*m2 @75 Pa (ASTM E2357)
• 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