08689 - 3M white polyurethane sealing putty cartridge 310ml

Technical characteristics of 3M™ 08689 White Polyurethane Sealant Putty

• Name: 3M™ polyurethane sealant putty
• Reference: 08689
• Brand: 3M
• Product type: Single-component polyurethane-based putty
• Color: White
• Packaging: 310 ml aluminum cartridge
• Chemical base: Moisture-curable polyurethane
• Density: 1.74 g/cm³
• Consistency: Thick paste
• Solvent: Low xylene content
• Dry matter content: 95%
• Flash point: 33°C
• Operating temperature: -31°C to +82°C
• Shelf life: 12 months in unopened original packaging

Properties and advantages

• Excellent sealing against water, air, and dust
• Good corrosion protection on bare steel and primed surfaces
• Can be painted after drying (minimum 30 min depending on conditions)
• Reliable adhesion on metals, plastics, composites, epoxy, polyurethane, and primed substrates
• Usable in conjunction with spot welding operations (subject to 3M technical validation)
• Moisture curing, maintaining excellent flexibility

Recommended applications

• Sealing door, hood, trunk, and sunroof joints
• Assembly and sealing of body parts
• Filling and protection of cable and pipe passages
• Sealing joints on metals, plastics, and composites
• Anti-corrosion protection during body repairs

Instructions for use

1. Sand the surface to be treated using a 3M ScotchBrite™ abrasive ref. 07447
2. Clean with a degreaser compliant with VOC regulations (avoid alcohol-based solvents)
3. Pierce the cartridge tip, remove the metal seal, and install the threaded nozzle
4. Insert the cartridge into a suitable dispensing gun (3M™ ref. 08990 or 08013)
5. Cut the mixing nozzle according to the desired bead width
6. Apply and smooth if necessary before skin formation
7. Time before painting:
   • Minimum 30 minutes for a 6 mm bead at 21°C with 50% humidity
   • Extended time under less favorable conditions or for thicker beads

Photo non contractuelle

See all reviews.