Roof Tube - .25" Fastener Grade Tip

The Roof Tube 0.25" Fastener Grade Tip (RT-FGT25) is the thinnest precision tip in the Roof Tube line. Designed for use with rust primers, top coats, and base coats, it delivers controlled, accurate mastic application to fasteners and small details. The updated 3D+ print design offers a stronger, more reliable build. If the .47" tip feels too messy or runny, this .25" version helps tighten output for clean, precise dispensing on tight spots—making it a smart tool trailer staple.

Key Features:

• Thinnest precision tip for controlled placement on individual fasteners and confined spots
• Updated 3D+ printed construction enhances durability and consistency
• Optimized for use with rust primers, sprayable top coats, and base coats
• Complements larger fastener tips (0.47, 0.625) for flexibility on job sites

• Inner diameter: 0.25 in
• Material: PVC with 3D+ printed reinforcement
• Compatible materials: rust primers, top coats, base coats; not intended for butter-, seam-, or trowel-grade mastics
• Recommended use: when 0.47 tip output is too wide or runny; select based on material viscosity and temperature conditions

• Ensure that the target surface around the fastener is clean, dry, and free of debris or rust.
• Select the 0.25 inch fastener grade tip and securely thread it onto your Roof Tube applicator.
• Apply the chosen rust primer, top coat, or base coat carefully, dispensing small, controlled dollops directly over fastener heads.
• Observe the material flow. If dispensing is too restricted or clogs occur, use a larger tip such as 0.47 or 0.625 inch.
• After application, flush the applicator and relubricate it if you plan to reuse the tube.
• Once complete, apply a compatible sealant—preferably urethane or silicone—not petro-chemical based.

Q: What materials is this tip best used with?
A: It is designed for rust primers, sprayable top coats, and base coats—not for thicker butter, seam, or trowel mastics.

Q: How does this tip compare to others in the fastener series?
A: It has the smallest opening, offering ultra-fine control—ideal when .47 or .625 tips are too broad or messy.

Q: Why is the 3D+ print design notable?
A: The 3D+ printing provides a stronger, more reliable tip geometry that holds up better in field use.

Q: When should I switch to a different tip size?
A: If the flow is too slow, switch up to .47 or .625; if it's too messy or stringy, this .25 is ideal. Adjust based on material viscosity and conditions.

Q: What sealants are recommended after using this tip?
A: Avoid petro-chemical-based sealants. A urethane or silicone sealant is typically recommended for lasting performance.