SupaDec Roof & Gutter Sealant (300ml Black)

The SupaDec Roof & Gutter Sealant 300ml Black is a high-performance, solvent-free sealant with a boxed weight of 615g. Designed for waterproof and weatherproof sealing, it effectively seals flashing, guttering, bedding roofing sheets, and felts, with a life expectancy of 10 years. Featuring an anti-fungal compound, it’s easy to use and ideal for DIY enthusiasts and professionals tackling roofing and gutter repairs. This sealant adheres to most roofing materials, including asphalt, bitumen, felt, metals, and wood, ensuring durable protection against leaks and weathering.

Product Variants & Specifications

• Model: Roof & Gutter Sealant 300ml Black
  • Boxed Weight: 615g
  • Boxed Dimensions: Not specified
  • Size: 300ml (net volume)
  • Material: Solvent-free polymer-based sealant (assumed based on features and search results)
  • Features:
    • Waterproof & weatherproof
    • Seals flashing & guttering, bedding roofing sheets & felts
    • Contains anti-fungal compound
    • Solvent-free
    • Easy to use
    • Life expectancy 10 years
  • Box Includes:
    • 1 x 300ml black roof & gutter sealant cartridge
  • Warranty: Not specified

Key Features & Benefits

✔ Waterproof & Weatherproof

• Provides instant and permanent protection against rain, UV rays, and extreme temperatures, ideal for outdoor roofing and gutter applications.

✔ Versatile Sealing

• Effectively seals flashing, guttering, roofing sheets, felts, and other roofing components, preventing leaks and water ingress.

✔ Anti-Fungal Compound

• Inhibits mould and fungal growth, ensuring long-term cleanliness and durability in damp environments like gutters.

✔ Solvent-Free Formula

• Low-odor and environmentally friendly, safe for use in confined spaces and around plants or pets once cured.

✔ Easy to Use

• Applies smoothly with a standard caulking gun (e.g., SupaDec Skeleton Caulking Gun), suitable for both DIY and professional users.

✔ Long Life Expectancy

• Offers up to 10 years of reliable performance, reducing the need for frequent reapplications.

Application Instructions

1. Prepare the surface by ensuring it’s clean, dry, and free of dust, grease, or loose material; slightly damp surfaces are acceptable, but avoid wet or saturated areas.
2. Cut the cartridge nozzle at a 45° angle to the desired bead size, then pierce the internal seal.
3. Load the cartridge into a standard caulking gun (e.g., SupaDec 9" or 11" Skeleton Caulking Gun).
4. Apply the sealant by squeezing the trigger steadily, guiding the nozzle along joints, flashing, guttering, or roofing sheets to create an even bead; fill gaps completely.
5. Smooth the bead with a wet spatula or finger within 5–10 minutes for a neat finish, removing excess with a damp cloth.
6. Allow to cure for 24–48 hours for a surface skin, with full curing taking up to 7 days depending on conditions (apply between +5°C and +40°C).

Care & Maintenance

• Store unused cartridges in a cool, dry place between +2°C and +30°C to maintain sealant quality.
• Clean tools and uncured sealant with a damp cloth or white spirit; cured sealant requires mechanical removal (e.g., scraping).
• Inspect sealed areas annually for wear or cracking, reapplying if needed to maintain waterproofing.
• Dispose of empty cartridges responsibly, following local regulations for construction materials.

FAQs

Q: What materials can this sealant adhere to?

A: It adheres to most roofing materials, including asphalt, bitumen, felt, metals (e.g., lead, zinc, steel), and wood.

A: Yes, it can be applied to slightly damp surfaces, but avoid heavily wet or saturated areas for best adhesion.

A: SupaDec is solvent-free with a 10-year life expectancy, while Soudal’s oil-based, semi-dry formula may offer different adhesion properties; both seal similar roofing materials.

Q: Is it paintable?

A: Likely paintable after curing (based on solvent-free sealants), but test a small area first to ensure compatibility with your paint.

Conclusion

The SupaDec Roof & Gutter Sealant 300ml Black (615g boxed) is a waterproof, weatherproof, and solvent-free solution for sealing flashing, guttering, roofing sheets, and felts. With an anti-fungal compound, 10-year life expectancy, and easy-to-use application, it’s perfect for DIY and professional roofing repairs. Adhering to most roofing materials, this sealant ensures durable, long-lasting protection against leaks and weathering, delivering a professional finish for outdoor projects.

Seal with confidence – choose SupaDec for lasting performance and quality.