Skip to product information
1 of 2

Thompson's

Thompson's Emergency Instant Repair Aerosol - 450g

Thompson's Emergency Instant Repair Aerosol - 450g

SKU:461174

Regular price £13.49 GBP
Regular price Sale price £13.49 GBP
Sale Sold out
Tax included. Shipping calculated at checkout.

Low stock

  • Free shipping for orders over £75. See shipping policy for restrictions

Earn [points_amount] when you buy this item.

Shipping

Free delivery for orders over £75 within UK mainland. This does not apply to large products (such as those above 1m of length), heavy products (including aggregates, compost and wood logs) and fragile products (such as ceramics, shower enclosures etc.). See shipping policy for restrictions. 
Free local delivery above £50 and £5 charge for delivery under £50 within a 3 mile radius and £7 up to 6 mile radius.  
Standard Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
  • Lighter items (under 1kg) - £4 and free for orders over £75
  • Smaller items (1 - 10kg) - £7 and free for orders over £75
  • Larger items (10kg - 30kg) - £15 and free for orders over £350
  • Bulky items (30kg and above) - £35 with minimum order value of £100
Express Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
  • Lighter items (under 1kg) - £7 and free for orders over £75
  • Smaller items (1 - 10kg) - £10 and free for orders over £75
  • Larger items (10kg - 30kg) - £20 and free for orders over £350
Wallpaper Samples

Standard - £1.65

Standard Shipping (Northern Ireland and Scottish Islands & Highlands) 2 to 7 business days
  • Lighter items (under 1kg) - £7
  • Smaller items (1 - 10kg) - £15
  • Larger items (10kg - 30kg) - £25
  • Bulky items (30kg and above) - £35 with minimum order value of £100

Returns

View full details

Experience rapid, reliable repairs with Thompson's Emergency Instant Repair Aerosol 450g, a cutting-edge solution engineered for swift and effective sealing in even the most challenging conditions. This high-performance sprayable mastic is designed to deliver an immediate watertight seal, making it the ultimate choice for emergency fixes on a variety of surfaces. With its ability to adhere to damp substrates and a robust formula that sets instantly, this 450g aerosol (boxed weight 600g) ensures lasting protection against leaks, ideal for roofing, guttering, and more. Perfect for homeowners and professionals seeking a quick, dependable repair tool that performs under pressure.

Product Variants & Specifications

450g
Boxed Dimensions & Weight: W: 7.0 cm H: 25.0 cm D: 7.0 cm ⋅ 600 g

Note: Boxed dimensions are specified based on standard aerosol packaging, tailored to accommodate the 450g contents and total boxed weight of 600g, ensuring secure and efficient handling.

Key Features & Benefits

  • Damp Surface Application – Uniquely formulated to bond effectively to wet or damp surfaces, providing versatility for repairs in adverse weather conditions, such as rain or high humidity.
  • Instant Effectiveness – Sets immediately upon application, delivering rapid leak protection without the need for drying time, perfect for urgent repairs on roofs, gutters, or pipes.
  • Watertight Seal – Creates a durable, impermeable barrier that prevents water ingress, safeguarding your property from damage caused by leaks or harsh elements.
  • Flexible Durability – Engineered to flex with substrate movement, resisting cracking and splitting to ensure long-lasting performance and protection against future leaks.
  • Lightweight Aerosol Design – At 450g (600g boxed), this easy-to-use spray format allows for precise application, reaching tricky spots like guttering or downpipes with minimal effort.
  • Broad Surface Compatibility – Suitable for tile, slate, metal, asphalt, felt, wood, and plastic, making it a versatile solution for roofing, drains, caravans, sheds, and greenhouses.

Application Instructions

  • Preparation: Clean the repair area with a stiff bristle brush to remove loose dirt or debris. For optimal adhesion, lightly sand the surface if possible, though not required on damp areas.
  • Conditions: Apply in any weather, including rain, for emergency fixes. Shake the can vigorously for 1-2 minutes until the mixing balls rattle to ensure a consistent mix.
  • Application: Hold the aerosol 45-60 cm from the surface and spray evenly over the leak or crack. For larger repairs, apply a first coat, embed the included scrim bandage, and follow with 2-3 heavy coats. Turn the can upside down and spray for 3 seconds to clear the nozzle after use.
  • Post-Application: Allow the seal to set (effective immediately), though avoid heavy disturbance for 24 hours for maximum durability. Clean tools with white spirit if needed.

Care & Maintenance

  • Cleaning: Wipe the nozzle with a cloth after use to prevent clogging. If residue builds up, clear with white spirit and dry thoroughly.
  • Storage: Store in a cool, dry, well-ventilated area between 5°C and 25°C, away from heat sources or direct sunlight, with the cap securely replaced.
  • Avoidances: Keep out of reach of children. Do not puncture or incinerate the can, even when empty, and avoid exposure to extreme heat above 50°C.

FAQs

Q: Can this be used in the rain?
A: Yes, its hydrophobic formula displaces moisture, allowing application on damp or wet surfaces for instant sealing in any weather.

Q: How long does the repair last?
A: With its flexible, crack-resistant design, it provides long-term protection, potentially lasting years depending on surface conditions and exposure.

Q: Is it suitable for all roofing materials?
A: Yes, it bonds effectively to tile, slate, metal, asphalt, felt, wood, and plastic, ensuring broad compatibility for various repair needs.

Conclusion

Thompson's Emergency Instant Repair Aerosol 450g is the definitive choice for fast, dependable leak repairs, offering unmatched performance in emergencies. With its ability to apply to damp surfaces, instant watertight sealing, and durable, flexible finish, this 600g boxed aerosol ensures your roofs, gutters, and pipes are protected with professional-grade precision. Whether tackling a sudden leak or reinforcing vulnerable areas, trust Thompson's to deliver immediate, lasting results that keep your property secure and dry, no matter the conditions.