B3 All Purpose Fill and Fix Expanding Gun Grade PU Foam

Name: B3 All Purpose Fill and Fix Expanding Gun Grade PU Foam

A fast setting, multi‐purpose B3 polyurethane foam which bonds, fills, seals and insulates most construction materials Quick, economic and easy to apply. . Available in 500ml and 750ml aerosol cans or 750ml gun grade canister which can be used with a standard gun foam applicator (BDAG1 or BDAK45). Conforms to DIN4102-1 Class B3. (Foam rating for products with no fire resistant additives of properties.)

Features: Low curing pressure avoids deformation of building elements. – High thermal and acoustic insulation value. – Good volume expansion for effective filling. – B3 Rating according to DIN 4102‐1. – Non‐Shrinking. – Improves draught and heat insulation

Application: The fresh foam adheres to most common building materials including wood, concrete, stone, plaster, metal, PVC and polystyrene. Fills irregular gaps, fixes framework and deadens sound. Can be cut, sawn, plastered and sealed over once cured. For fitting doors, windows and insulating pipes and filling gaps and can reduce the need for mechanical fixings. Areas of Application: installation of window and door frames and entrance door linings (where a clean and controlled backfill is required) – 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. Handheld: 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: Moisture is needed for an even and rapid curing of the foam. Inadequate moistening or overfilling of joints and cavities may lead to an unwanted post-expansion of the foam. Foam extrusion can be controlled accurately by varying the pressure on the adaptor or gun trigger. For foam extrusion the valve is pointed down but it will work through most angles. The valve lever is to be activated carefully. Once a can has been started, it should be used within four weeks. Cured foam is sensitive to UV light and direct sunlight and therefore should be covered with suitable opaque sealant, filler, paint or other material. Not suitable for PE, PP, PC, PMMA, PTFE, soft plastics, neoprene and bituminous substrates. Does not bond to Teflon®, siliconised or wax-like surfaces. Do not use in applications where continuous water immersion is possible. Note: This product has been tested for fire resistance for joints and penetration seals. It has not been tested for use around fire doors so cannot be used as a fire resistant seal around designated fire doors.