Breeze Block Airtight PU Foam

Name: Breeze Block Airtight PU Foam

A fast setting, multi‐purpose gun grade polyurethane foam ideal for use as an air tight gap-filler for general construction joints where movement is likely. Absorbs component movement thereby giving an air-tight seal to reduce heat loss and improve energy efficiency in buildings. Bonds, fills, seals and insulates most construction materials.

Features: Near-zero curing pressure and low post expansion avoids deformation of building elements. – High thermal insulation value. -Gives an airtight seal: <0.1m3 / [h.m(daPa)2/3] according to EN 12114:2000. - B2 Rating according to DIN 4102-1. - Sub-zero formula - can be used at temperatures as low as -5oC. - Non‐shrinking. Acoustic dampening - up to 63dB. Application: Bonds, fills, seals and insulates most construction materials, which has a reaction to fire rating of class B2 (DIN4102:1). The fresh foam adheres to wood, concrete, block, stone, plaster, metal, PVC and polystyrene. Areas of Application: - Installation of window and door frames and entrance door linings - Filling of holes. - Insulation of penetrations. - Sealing of thermal and acoustic insulation boards. - Sealing and connection of joints. - Reducing the impact of thermal bridges. Instructions: Preparation: Surfaces to be bonded must be firm, clean, dry and free from dust, grease or contaminants that may hinder adhesion. They must be moistened well with water. All construction components must be properly prepared prior to foam application. It is advisable to have Foam Cleaner at hand. Chilled cans must be carefully warmed in luke-warm water (below +45oC) before usage but avoid heating above +50°C, as there is a risk of bursting. Cans which are too hot, for example after having been left in a vehicle during summer, must be cooled using cold water. Protect adjacent surfaces with paper, plastic film or other suitable material. The can should be shaken occasionally during this process to obtain the required temperature faster. Prior to work, and before the adaptor is attached, he can must be shaken thoroughly at least 15-20 times. Application: As from 24 August 2023 adequate training is required before industrial or professional use. The instructions for the can must strictly be observed. Use gloves and eye protection and avoid skin contact. Hold the foam can in upright position. Screw the applicator (straw) to the foam can valve. For application, turn the can upside down and press the applicator trigger. Use the applicator trigger to adjust the foam output.Gun Grade: Hold the foam can in upright position, turn the gun to the can by holding the gun handle with one hand, and turn the can with the other hand. Make sure that the gun is not pointed at other persons when turning it. The can must not be screwed to the gun with the valve upside down or by turning the gun on the can. Care must be taken not to overtighten the adaptor and not to activate the valve during this process. Turn the can upside down and start applying. The foam output can be adjusted by the gun trigger. The fresh foam will expand by 1½ to 2 times. Therefore care must be taken not to overfill joints. Fresh foam spills must be removed immediately within the tack-free time with Bond It Foam Cleaner. Cured foam must be removed mechanically. Cleaning: Excess foam can be removed whilst still wet using Bond It Foam Cleaner or Multi-Wipes. Cured foam can only be removed mechanically. Limitations: This foam is not for use around fire doors to provide a fire resistant seal to flames and smoke. Cured foam is sensitive to UV light and direct sunlight and therefore should be covered with suitable opaque sealant, filler, paint or other material. Lighter construction elements must be formly fixed before application of the foam due to formulas high post expansion. As with all PU foams, it does not bond to polythene, Teflon®, siliconised or wax-like surfaces.