Description

Zerodraft Insulating Air is polyurethane foam consisting of a mix of chemicals (MDI Monomer and Isobutene/Propane propellant) in a pressurized container and is formulated so that it will react and cure chemically in ambient air.

The material mix is ejected from a portable/disposable self-contained applicator with an advanced metering system that controls foam flow, prevents over-application and reduces waste. Zerodraft Insulating Air Sealant also provides high yield and quick curing. For application purposes, the gun foam system is the most efficient means of dispensing foam, offers the greatest control as well as optimum accuracy. The unlimited range of applicator motion is an installer convenience when going up and down ladders, around corners or moving from room to room.

Zerodraft Insulating Air Sealant is available in two convenient size containers –Z2-200 and Z2-600, and the gun applicator is available with three types of accessory nozzles i.e. Fan, High Velocity, and Pour-In-Place, to suit variety of installer requirements.

Uses

Zerodraft Insulating Air Sealant is intended to be installed at junctions between different building elements, and voids, and around penetrations in a building assembly to control air leakage.

It is dispensed as high yield foam for filling holes over 50 mm width in size.

Example areas of use for Zerodraft Insulating Air Sealant include:

• Drill and inject applications, e.g. window and curtain-wall mullions, beam and column enclosures, and other hidden cavities.
• Voids in walls and at roof-wall connections.
• At beams and columns to eliminate thermal bridging.
• Spray application for continuity in other insulation systems i.e. gaps in board insulation and surrounding surfaces.
• Mechanical and electrical penetrations in walls, floors and roofs (pipe, duct, conduit, etc.).
• Similar locations, to provide a continuous impermeable barrier to air infiltration or loss.

In addition to general construction, other industries where Zerodraft Insulating Air Sealant is used include agricultural boating and marine, cold storage, mining, petrochemical, pools and spas, refrigeration, transportation, and utilities.

Limitations:

Do not use Zerodraft Insulating Air Sealant:

• Where subject to a continuous service temperature outside the range of -60°C to +80°C such as in contact with chimneys, heater vents, steam pipes, etc. unless the sealant has been designed for use at other service temperatures as specified by Zerodraft.
• On or in the vicinity of heat emitting devices such as recessed lighting fixtures, at a lesser distance than 75 mm (3”) or as specified by the authority having jurisdiction.
• Inside electrical outlets or junction boxes.
• Left exposed to continuous ultraviolet light
• Immersed in water for long periods of time.

Features

• High yield; expands 3 times from initial application or injection.
• Quick cure; cures in 45 seconds.
• Fire retardant; self-extinguishing in absence of flame. Produces Flam Spread Rating of less than 25 and Smoke Developed Rating of less than 50 when tested to CAN/ULC-S102 and ASTM E-84 in a range of bead sizes. (not a fire stop; see Zerodraft Air Sear/Fire Stop Systems literature).
• Safe formula; does not contain urea formaldehyde, CFC’s (chlorofluorocarbons: or hazardous solvents.
• Excellent insulating properties: over 90% closed cell content provides RSI Value of 1.057 per 305 mm thickness (R Value of 6.0 per 1” thickness) which helps in reducing heating and cooling costs.

Standards Conformance

Zerodraft Insulating Air Sealant conforms to:

CAN/ULC-S711.1 Standard For Thermal Insulation – Bead Applied Two-Component Polyurethane Air Sealant Foam, Part 1: Material Specification.

CAN/ULC-S711.2 Standard For Thermal Insulation – Bead Applied Two-Component Polyurethane Air Sealant Foam, Part 2: Application.

Building codes:

Zerodraft two-component sealant complies with the following National Building codes.

• 3.1.5.2 Minor combustible components (Zerodraft insulating air sealant is permitted in buildings required to be of non-combustible construction).
• 5.4.1.2 Air Barrier System Properties (Zerodraft Insulating Air Sealant falls within the maximum allowable air leakage rate of 0.02 l/s-cubic meters). measured at an air pressure difference of 75Pa.
• A-6.4.1.2 (1) and (2) Air leakage through the Air Barrier System (Zerodraft Insulating Air Sealant falls within the recommended maximum allowable leakage rates as related to warm and cold side temperatures and humidity conditions).

Installation

• Storage/Shelf Life: Do not expose to heat or store above 50°C. Do not leave in vehicle. Shelf life is 12 months.
• Surface Preparation: Apply to clean substrates free of oil, grease or excessive moisture.
• Application: Zerodraft Insulating Air Sealant should be applied only by accredited Zerodraft applicators.

Essentially, these specialist contractors seal gap, cracks and holes with appropriate materials and systems thereby ensuring a continuous plane of air tightness in the building envelope.

In addition, the specialist contractors are familiar with the need for “decoupling” and “compartmentalization” with buildings. Floors are decoupled from each other to prevent vertical leakage while other areas of the building are compartmentalized to help equalize pressure differences.

Other areas to consider include fire cabinets, garbage disposal rooms, electrical rooms and other service shafts.

Zerodraft Insulating Air Sealant is also effective in sealing and insulating thermal “bridges” at roof-wall junctions, beam penetrations, and other interruptions affecting the integrity of wall and roof systems.

Technical Data: