The white sealant is especially suitable for PVC window and door frames, white sandwich panels, cold rooms, motorhomes, trailers, boats, light façades, white sheet metal flashings and surfaces that will be painted with white or light-coloured paints. Thanks to its thixotropic, non-sag consistency, it is easy to apply on vertical joints and overhead surfaces.

Technical information
Product type: polyurethane sealant / adhesive-sealant
Manufacturer: Akfix
Model: 637FC
Type: Fast Cure
Base: polyurethane / PU
Components: one-component
Consistency: thixotropic / non-sag
Modulus: high modulus
Colour: white
Volume: 310 ml
Application: bonding and sealing
Paintable: yes, after full curing
Use: indoor and outdoor applications

Benefits

✔ Fast-curing – helps continue work faster
✔ Permanently elastic – absorbs joint movement and vibration
✔ Strong adhesion to many construction and industrial surfaces
✔ Non-sagging – suitable for vertical joints and overhead applications
✔ Resistant to moisture, water, UV radiation and weather conditions
✔ Resistant to ageing and mild chemicals
✔ High mechanical resistance for structures exposed to vibration and loads
✔ Easy to apply with a standard sealant gun
✔ Easy to smooth and shape
✔ Paintable after full curing
✔ White colour matches PVC frames, white panels, light façades and white sheet metal

Suitable surfaces

Akfix 637FC adheres well to many construction materials, usually without primer:

Concrete
Masonry
Bricks
Roof tiles
Metal
Aluminium
Stainless steel
Galvanized or painted sheet metal
Wood
Ceramics
Glass
Some plastics, e.g. PVC

For non-standard, painted or plastic surfaces, an adhesion test is recommended before application.

Application areas
Sealing of PVC window and door frames
Filling gaps between frames and masonry, concrete or trims
Installation and sealing of white sandwich panels
Sealing of cold rooms, refrigerators and food industry premises
Joints of white sheet metal flashings and light façade elements
Bonding and sealing of motorhomes, trailers, vans and boat structures
Sealing of fiberglass component joints
Sealing of concrete floors, façades and expansion joints
Sealing of ventilation ducts and air conditioning system joints
Bonding of window sills, thresholds, stairs, panels and prefabricated elements
General construction and industrial bonding and sealing works

Akfix 637FC PU sealant 310 ml, white is a reliable solution for sealing and bonding PVC windows and doors, white panels, light façades, sheet metal flashings and other construction or industrial surfaces where fast curing, elasticity and durability are required.