Sika Sikaflex-252 Polyurethane Adhesive, White 300 mL

Description

Sikaflex-252 Adhesive is a one-component polyurethane used for vehicle panel bonding, floor assemblies, and other joints that see movement in service. Sika lists it for coated metal, GRP, ceramic materials, and plastics, with paintable, vibration-damping performance in a 300 mL cartridge.

Sikaflex-252 Adhesive Benefits

• Bonds a wide range of substrates used in transportation, fabrication, and assembly work.
• Handles dynamic stress where rigid adhesives can crack under flex and vibration.
• Good gap-filling behavior helps on panel joints and uneven mating surfaces.
• Paintable finish supports jobs where the bond line must blend with the surrounding assembly.
• Electrically non-conductive chemistry fits many enclosed equipment and vehicle build applications.

Buyers typically choose Sikaflex-252 Adhesive when they need a moisture-curing polyurethane that can be dispensed from a standard cartridge and assembled within a practical open time. It is commonly used on aluminum, phosphated or galvanized steel, painted metal, timber, ceramics, and selected plastics, though Sika advises checking stress-crack-sensitive plastics before use.

Common Applications for Sikaflex-252 Adhesive

• Bonding side panels, roof panels, and floor components in vehicle assembly.
• Joining coated sheet metal and aluminum parts in transportation and specialty vehicle builds.
• Attaching GRP panels, ceramic materials, and trim parts where vibration damping matters.
• General industrial assembly work that needs a paintable elastic adhesive instead of a brittle bond line.

Surface Prep and Bond Line Control

Surfaces should be clean, dry, and free of grease, oil, dust, and other contaminants before application. Sika notes that surface treatment depends on the substrate, and a triangular bead is recommended to maintain more consistent bond-line thickness. The product can be applied between 10 and 35 C, with best working conditions around 15 to 25 C.

Technical Details and Documentation

• Chemical base: 1-component polyurethane.
• Skin time: 40 minutes (CQP019-1).
• Open time: 35 minutes (CQP526-1).
• Shore A hardness: 50 (ISO 48-4).
• Tensile strength: 3 MPa (ISO 527).
• Elongation at break: 400% (ISO 527).
• Tensile lap-shear strength: 2.5 MPa (ISO 4587).
• Service temperature: -40 to 90 C continuous, with short exposure to 130 C for 4 hours or 150 C for 1 hour.

Review the current product data sheet before production use, and see Sika for manufacturer support and technical literature.

Ordering and Cartridge Fit

This SKU is the white 300 mL cartridge, which works with manual, pneumatic, or electric piston guns. For related materials, browse our polyurethane construction adhesives category.

Need help confirming substrate fit, bead size, or prep method? Call (800) 220-1966 or email [email protected].