3M 08991 Flex Pack Heavy Duty Applicator Gun, 450 mL, Manual, 18:1 Thrust Ratio

3M 08991 Flex Pack Heavy Duty Applicator Gun, 450 mL, Manual, 18:1 Thrust Ratio

• 3M 08991 Flex Pack Heavy Duty Applicator Gun is a manual applicator for 1-part windshield urethanes in collision repair. Its fully enclosed metal barrel fits 450 mL Flex Packs, and the rod-driven, friction-feed design helps deliver a steady, controlled bead.
• Features:
  • 18:1 thrust ratio for smoother flow with medium to high viscosity materials, improving bead control
  • Fully enclosed all-metal barrel sized for 450 mL Flex Packs to help prevent pinching and air pockets
  • Rod-driven, friction-feed mechanism supports consistent dispensing and easy trigger operation
  • Twist-off barrel simplifies loading and removal of flexible packages to speed changeovers
  • General-use applicator for collision repair; not a replacement part for a specific SKU or vehicle
• Specifications:
  • Manufacturer: 3M
  • Part Number: 08991
  • Tool Type: Manual flex pack heavy duty applicator gun
  • Cartridge Size: 450 mL flexible foil packs
  • Thrust Ratio: 18:1
  • Construction: All metal barrel, rod, handle, and trigger; twist-off barrel
  • System Compatibility / Application: For applying 1-part 3M windshield urethanes and similar materials in collision repair
  • Quantity: 1 per case
• The Flex Pack Heavy Duty Applicator Gun can also be referred to as 450 mL applicator gun, urethane flex pack applicator, manual windshield adhesive gun, heavy duty foil pack applicator, and collision repair applicator gun.

3M supplies professional applicators and materials for automotive and industrial repair. The Flex Pack Heavy Duty Applicator Gun is built for reliable, controlled dispensing with compatible 450 mL flexible packages in collision repair workflows.

Q: What package size does 08991 accept?
A: 450 mL flexible foil packs used for 1-part windshield urethanes.

Q: Is it manual or pneumatic?
A: Manual. It uses a rod-driven, friction-feed mechanism with an 18:1 thrust ratio.

Q: How is loading performed?
A: The twist-off barrel allows quick loading and removal of the flexible package to speed changeovers.