Roof Tube - 1.9" I.D Seam Sealing Tip, Large Mouth

The Roof Tube 1.9-inch I.D. Large Mouth Seam Sealing Tip is engineered for high-volume seam sealing using heavy trowel-grade mastics. With one pass, it applies an impressive 2.5-inch bead, enabling crews to seal seams as quickly as they can walk—drastically reducing labor on flat roof applications.

Key Features:

• Large mouth design delivers a 2.5-inch wide bead in a single pass
• Ideal for heavy trowel-grade mastics on flat roofs and expansive seams
• Greatly increases application speed and productivity
• Compatible with all Roof Tube applicators

• Inner diameter: 1.9 in
• Compatible materials: heavy trowel-grade mastics
• Bead width: approximately 2.5 inches in one smooth application
• Application context: optimal for flat roof seams and high-output sealing needs

• Ensure the seam or flat surface is clean, dry, and free of debris.
• Thread the 1.9-inch Large Mouth Tip securely onto your Roof Tube applicator.
• Draw heavy trowel-grade material into the tube using suction or priming.
• Apply material along the seam with steady pressure to produce a uniform 2.5-inch bead.
• Maintain a consistent application speed—this tip keeps pace with walking speed.
• If narrower bead control is needed, switch to a smaller seam-grade or fastener-grade tip.
• After use, flush the applicator and relubricate for potential reuse.

Q: What materials are best used with this tip?
A: It is specifically intended for use with heavy trowel-grade mastics on flat surfaces and seams.

Q: How wide is the bead this tip produces?
A: It produces a clean, uniform bead approximately 2.5 inches wide in one continuous pass.

Q: Is this tip compatible with all Roof Tube applicators?
A: Yes. It fits any Roof Tube model designed to accept interchangeable tips.

Q: What if I need to apply sealant more precisely or narrowly?
A: In that case, a smaller seam-grade or fastener-grade tip is more suitable for fine control.

Q: Can I reuse this tip across multiple applicators?
A: Yes. Simply clean the tip thoroughly and attach it to another compatible applicator as needed.