The black sealant is especially suitable for automotive body repair, dark structures, black roof sheets, gutters, solar panel frames, dark façade elements and black trim parts. The black colour blends well with dark surfaces, helping the sealed joint look neat and less visible.

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: black
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
✔ Black colour matches automotive body parts, dark sheet metal, solar panel frames and black trim elements

Suitable surfaces

Akfix 637FC adheres well to many construction and industrial materials:

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 automotive body seams
Sealing of car underbody, wings, wheel arches and internal structures
Bonding of black plastic trims, bumpers, spoilers and other exterior parts
Sealing of trailers, vans, buses, containers and boat structures
Sealing of black roof sheets, roofing elements and sheet metal flashings
Sealing of black gutters, downpipes and roof window joints
Sealing of chimney flashing joints
Sealing of black aluminium frames and brackets of solar modules
Sealing cable penetrations through roof coverings
Fixing mounting profiles and brackets
Joints of black anodised aluminium, black PVC, dark granite or composite panels
Expansion joints in dark tiles or industrial floors
General construction and industrial bonding and sealing works

Akfix 637FC PU sealant 310 ml, black is a reliable solution for automotive body repair, solar panel installation, dark roof sheets, gutters, panels and black trim elements where fast curing, elasticity and durability are required.