Flexfoam
GUN 644

GUN GRADE PU FOAM

Advantages:

Excellent adhesion strength to all common construction substrates
Ease of application
High thermal and acoustical insulation
Good volume expansion for effective filling
Provides a stable dimension upon curing

Description:

Flexfoam Gun 644 is is a ready to use, one component polyurethane foam which is applied using a polyurethane foam applicator gun. Flexfoam Gun 644 is designed to have a low curing pressure as well as moderate expansion characteristics in order to avoid the deformation of building elements

Usage

Sealing and filling of holes, gaps, joints, cavities and penetrations.

Sealing of window and door frames.

Sealing the joints between adjacent thermal insulation and acoustic boards.

Reducing the impact of thermal bridges.

Materials Supplied

Flexfoam Gun 644 is packaged in 640 ml aerosol cans holding

774 g

Storage

Storage in the original unopened cans at temperatures between 5°C and 30°C away from direct sunlight, snow and rain.

Remarks

Sensitive to UV and direct sun light
Not recommended for use in contact with Teflon, polyethylene and silicon surfaces
Flexfoam Gun 644 should be applied at ambient temperatures between +5 to +30˚C

Shelf Life

12 months in unopened cans stored under good conditions.

Technical Information @ 23°C

Density	15-19 kg/m³
Tack free time	6-10 min
Cutting time	< 30 min
Cure time	< 8 h
Curring pressure moistended surfaces	< 1 kPa
Application temperature	5°C to 30°C
Service temperature	-50°C to 90°C
Post expansion	< 80 %
Compressive strength moistended surfaces	> 5 kPa
Tensile strength/ Elongation moistended surfaces	> 60 kPa/ 22%
Tensile strength/ Elongation dry surfaces	> 80 kPa/ 22%
Shear strength moistended surfaces	> 20 kPa
Fire class	B3
Sound reduction index ISO 10140	60 dB
Water vapour permeability EN 12086	< 0,06 mg(m.h.Pa)
Thermal conductivity EN 12667	0.03 W/(m.K)

Application Information

SUBSTRATE PREPARATION
Surfaces must be sound, clean, and free of oil and grease. Spray small amounts of water onto the substrate prior to the application. For cold applications, Flexfoam Gun 644 must be kept in a warm room where the temperature does not exceed 30°C before the application.

APPLICATION

Shake Flexfoam Gun 644 well before using (i.e. at least 20 times), then attached the aerosol can onto the applicator gun 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. Turn the can upside down and start the application.

The discharge rate can be controlled by controlling the pressure on the trigger of the gun. When applying foam in layers moisten slightly between each layer.

Flexfoam Gun 644 aerosol can must be kept upside down during the time of discharging.