Dow Thermax™ Light Duty insulation from Dynamic Composite Technologies

Dow Thermax Sheathing is a non structural, rigid board insulation consisting of a glass fibre reinforced Polyisocyanurate (PIR) foam core laminated between smooth, reflective aluminium foil facers on both sides.

The glass-fibre reinforced PIR foam core, along with chemical modifications, contribute to improved fire performance and dimensional stability. The core will not melt, flow or drip when exposed to fire, instead it will form a strong char that prevents flame spread and further degradation to the core, unlike EPS (Expanded Polystyrene) which will spread the flame due to oxygen being held between the cells within the panel. The cells are also a thermoplastic, which tend to melt and shrink under intense heat.

The bonded aluminium foil facers serve as effective moisture vapour retarders. Dow PIR Thermax Sheathing can be installed exposed to the interior without a thermal barrier which offers a high insulating value.

Applications

• Thermax Light Duty is designed as an insulation and interior finish system for walls and ceilings in metal, wood post frame, and concrete or masonry buildings.

Features

• Durable white acrylic-coated aluminum on one side, embossed aluminium on the other for light-impact areas.
• It can be pressured-washed up to 6,894.7 kPa with a 15-degree or greater sprag tip

Standards

• Thermax Light Duty is manufactured with a zero ozone depleting potential. The use of Thermax Light Duty helps reduce the carbon footprint of commercial buildings.

Product Name: Dow Thermax Light Duty Polyisocyanurate

Product Description: Designed as an insulation and interior finish system for wall and ceilings in metal, wood post frame and concrete or masonry buildings.

Surface Finish: 1.25mil embossed white acrylic-coated aluminum on one side and 1.25mil embossed aluminum on the other.

Product Code: Thermax LD
Colour: White
Edge Treatment: Square Edge
Thickness: 12.7, 19.1, 25.4, 31.8, 38.1, 44.5, 50.8, 57.2, 63.5, 69.9, 76.2 mm
Width: 1219 mm
Length: 2235 mm
Compressive Strength: 172 kPa
Flexural Strength: 379.21 kPa
Water Absorption: 0.05%
Water Vapour Permanence: <0.03
Maximum use temperature: 121°C
Light reflective, visual light spectrophotometer: 65%