Product Facts
- Product Name
- Selleys No More Big Gaps - Expanding Foam Filler 390ml
- Availability
- In Stock
- Condition
- New
- Category
- Home & Garden > Building Materials & Hardware > Gap Fillers
- Seller
- Selleys
Selleys No More Big Gaps - Expanding Foam Filler 390ml
Get superior insulation and coverage with Selleys No More Big Gaps from our foam filler range. Perfect for filling large gaps and cracks around your home with ease. Features tack-free in 15 minutes, cures in 4-5 hours, expands up to 3x, blocks pests and noise. Suitable for indoor and outdoor use. Trim, sand, and paintable once cured.
Product Data (OpenAI Spec)
View Full JSON Spec ↗Specifications
| Finish | Semi-rigid closed cell |
|---|---|
| Cure Time | 4–5 hrs (3–5 cm gaps) |
| Expansion | 2.5–3× original volume |
| Technology | Expanding polyurethane foam |
| Limitations | Not suitable for underwater or continuously damp conditions. Not load-bearing or structural. Prolonged UV exposure may cause surface discolouration — paint if required. |
| Paintability | Yes, once cured |
| Tack-Free Time | ~15 mins |
| Directions for Use | 1. Clean and dampen surfaces for best adhesion. 2. Shake can well and attach nozzle. 3. Hold can upside down and apply foam into gap (fill to ~1/3, it will expand). 4. Allow to cure (4–5 hrs for 3–5 cm gaps). 5. Once cured, trim, sand, and paint if desired. |
| Important Information | Foam expands significantly (2.5–3×) — avoid overfilling. Shake can well before use. Protect surrounding surfaces from overspray. |