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ExoAir® 230/230LT

Brand: Tremco Incorporated
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ExoAir® 230 Fluid-Applied Synthetic Permeable Air Barrier Membrane is a monolithic, elastomeric membrane designed to be rolled or sprayed onto exterior above-grade wall assemblies to mitigate air infiltration/exfiltration and water penetration while remaining permeable to the passage of water vapor.
Features
  • ExoAir 230 is typically applied to exterior sheathing panels, concrete block, poured concrete or wood substrates as an air and vapor barrier material.
  • ExoAir 230 can be used with ExoAir 110, ExoAir 110AT, ExoAir 230 with mesh as fluid-applied flashing or Dymonic® 100 liquid flashing to detail into the rough opening.

ExoAir 230 

  • ExoAir 230 is a UV stable, seamless, monolithic membrane that creates a fully adhered air barrier when properly installed
  • The ability to roller or spray apply the material affords the contractor the ability to accelerate installation times compared to traditional self-adhered membrane systems
  • The high-performance properties of the ExoAir 230 membrane retard the migration of air and bulk water but allow water vapor to pass through the membrane. As a result, vapor permeable systems like ExoAir 230 allow for more flexibility in the placement of the air barrier membrane in the wall design
  • ExoAir 230 is formulated for UV resistance providing the flexibility to install rainscreen systems with open joints or to allow the membrane to be exposed longer during the construction process
  • ExoAir 230 can be custom colored to meet all of your design needs
  • ExoAir 230 is specifically formulated for design options requiring assemblies that have been evaluated for NFPA 285
  • ExoAir 230 is an approved Water Resistive Barrier when applied to Nudura Insulated Concrete Forms (ICF), or insulated concrete forms. 

ExoAir 230LT

  • ExoAir 230LT is a low temperature grade of ExoAir 230
  • ExoAir 230LT has the same features and benefits as ExoAir 230 listed above

Specifications

Brand

Type

  • Synthetic Acrylic

Color

  • Custom Colors available upon request
  • Limestone

Solids

  • 0.53

Application

  • Spray/Roller

Thickness

  • Porous Substrates: Minimum 70 mils (wet), 35 mils (dry)
  • Exterior Sheathing: Minimum 48 mils (wet), 25 mils (dry)

Storage Temperature

  • 40 to 100°F (5 to 37°C)

Cure Time

  • ExoAir 230LT: 16 to 24 hr at 20°F (-6°C), 50% RH
  • ExoAir 230: 16 to 24 hr at 75°F (24°C), 50% RH

Application Temperature

  • ExoAir 230LT: Above 20°F (-6°C)
  • ExoAir 230: Above 40°F (5°C) and Rising. If installing below 40°F (5°C), Refer to Cold Weather Air Barrier Installation Tech Bulletin

Service Temperature

  • Intermittent Exposure up to 240°F (115°C)

Maximum V.O.C. (Method 310)

  • ExoAir 230LT: 146 g/L
  • ExoAir 230: 18 g/L

Hydrostatic Head (AATCC - 127)

  • Pass (5 hours)

Crack Bridging (ASTM C1305)

  • Pass

Elongation (ASTM D412 Die C)

  • 900%

Tensile Strength (ASTM D412 Die C)

  • 120 PSI

Water Immersion (ASTM D870)

  • Pass

Adhesion (ASTM D4541)

  • Exterior Sheathing: 20 PSI
  • Concrete: 38 PSI

Antifungal (ASTM D 5590)

  • Pass

Flame Spread (E84)

  • 10

Smoke Development (E84)

  • 25

Water Vapor Permeance (ASTM E96 Dry Cup)

  • 1.4 US Perms

Water Vapor Permeance (ASTM E96 Wet Cup)

  • 12.0 US Perms

Water Penetration (ASTM E331)

  • Passed at 6.27 lb/ft² (300 Pa) for 2 hours
  • Passed at 15 lb/ft² (718 Pa)

Air Leakage of Material (ASTM E2178; Free Film Method @ 75 Pa)

  • 0.00158 cfm/ft² (0.00805 L/(s•m²))

Air Leakage of Material (ASTM E2178; Free Film Method @ 300 Pa)

  • 0.00435 cfm/ft² (0.02211 L/(s•m²))

Air Leakage of Assembly (ASTM E2357)

  • 0.003 cfm/ft² @ 1.56 lb/ft² (0.013 L/(s•m²) @ (75 Pa))

Fire Resistance of Assembly (NFPA 285)

  • Pass

Documentation

Data Sheet

Instruction Guide

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