Stopgap 400 Repair 10KG
Stopgap 400 Repair 10KG is backordered and will ship as soon as it is back in stock.
Free next-working-day delivery Eligible mainland UK postcodes FREE
| Area | Excluded postcodes |
|---|---|
| North-east Scotland | AB31–AB45, AB51–AB56 |
| Central & northern Highlands | FK19–FK21; all IV |
| Outer Hebrides | All HS |
| Arran & Cumbrae | KA27–KA28 |
| Caithness, east Sutherland & Orkney | All KW |
| Argyll & Inner Hebrides | PA21–PA38, PA41–PA49, PA60–PA78 |
| Perthshire & western Highlands | PH1 1, PH1 3, PH1 4, PH5–PH10, PH15–PH26, PH30–PH44, PH49–PH50 |
| Shetland | All ZE |
| Northern Ireland | All BT |
| Channel Islands & Isle of Man | All GY, JE & IM |
| Isles of Scilly | TR21–TR25 |
Need delivery outside our standard area? Please contact us before ordering and we’ll check whether a separate service can be arranged.
Click & Collect Salisbury Trade Counter FREE
F. Ball Stopgap 400 Repair is a fast-setting, rapid-drying floor repair compound designed for repairing damaged internal subfloors before applying a Stopgap smoothing compound or installing a compatible floor covering.
Its slump-free consistency makes it ideal for filling cracks and holes, rebuilding damaged screed, repairing stairs and steps, and forming or repairing ramps and covings. Stopgap 400 can be applied from 2mm up to 50mm, providing a strong and dimensionally stable repair in domestic, commercial and heavy-duty flooring environments.
Why Choose F. Ball Stopgap 400 Repair?
- Fast-setting and rapid-drying repair compound.
- Suitable for light to heavy-duty internal flooring projects.
- Repairs cracks, holes and damaged areas of subfloor.
- Slump-free consistency for horizontal, angled and vertical repairs.
- Suitable for repairing stairs, steps, ramps and covings.
- Can be applied from 2mm up to 50mm.
- Can be trowelled to a feathered edge where required.
- Walkable from approximately 20–30 minutes under suitable conditions.
- Ready to receive a smoothing compound from approximately 90 minutes at 2mm.
- Low odour and protein-free for use in biologically sensitive areas.
Ideal For
- Repairing holes and damaged areas in concrete or screed.
- Filling cracks before applying a smoothing compound.
- Repairs to internal stairs and steps.
- Forming or repairing ramps and covings.
- Deep localised repairs up to 50mm.
- Feather-edge finishing around repaired areas.
- Domestic, commercial and heavy-duty internal floors.
- Hospitals and other biologically sensitive environments.
Professional Advice
Use Stopgap 400 for substantial or deep localised repairs before levelling the wider floor area. For applications deeper than 20mm, the compound should be mixed with the appropriate graded aggregate in accordance with the latest F. Ball Technical Data Sheet.
For fine surface imperfections, feather edging and smaller finishing repairs, use Stopgap Micro Rapid. Once larger repairs have hardened, the floor can be prepared with the appropriate Stopgap smoothing compound.
Technical Specifications
| Product Type | Rapid-setting internal floor repair compound |
|---|---|
| Pack Size | 10kg recyclable eco-pouch |
| Mixing Liquid | Approximately 2.3 litres of clean water per 10kg pouch for a standard mix |
| Application Thickness | 2–20mm unfilled; 20–50mm when mixed with suitable graded aggregate |
| Coverage | Approximately 2m² at 3mm, 1m² at 6mm or 0.4m² at 15mm |
| Consumption | Approximately 1.63kg/m² per millimetre of thickness |
| Working Time | Approximately 10–15 minutes at 20°C* |
| Walk-On Time | Approximately 20–30 minutes at 20°C* |
| Ready for Smoothing Compound | Approximately 90 minutes at 2mm and 20°C* |
| Mix Consistency | Thixotropic and slump-free |
| Classification | CT-C30-F4 to EN 13813:2002 |
| Suitable Application Tools | Mixing bucket, electric mixer with power whisk and steel smoothing trowel |
| Suitable Areas | Internal domestic, commercial, industrial and biologically sensitive environments |
Prepare Your Subfloor Like a Professional
Correct moisture control, priming and repairs are essential before applying a smoothing compound or installing a new floor covering.
1. Check for Moisture
Test the subfloor before starting work. Where excess moisture is present, select a suitable product from our Liquid DPM collection and follow the relevant system requirements.
2. Select the Correct Primer
The primer required depends on the substrate and its absorbency. Browse our F. Ball levelling compound primers, including P121, P131 and P141, and follow the latest F. Ball guidance for the floor being repaired.
3. Choose the Right Repair Product
Stopgap 400 Repair is designed for cracks, holes, damaged screeds, stairs, steps, ramps and deep localised repairs.
Stopgap Micro Rapid is better suited to fine surface imperfections, feather edging, plywood joints and smaller finishing repairs.
4. Level the Floor Where Required
Stopgap Fast-Track 30 – Choose when installation speed is the main priority.
Stopgap 700 Superflex – Designed for plywood and other suitable flexible substrates.
Stopgap 1200 Pro – Ideal over suitable well-bonded adhesive residues.
Stopgap 300 HD – Heavy-duty smoothing compound for sound absorbent and non-absorbent subfloors.
Need Help Choosing?
Not sure whether you need a finishing compound, repair mortar or full-floor levelling compound? Contact our flooring specialists with details of the substrate, repair depth, moisture readings and the floor covering being installed.
Important Information
- For internal use only.
- The subfloor must be sound, clean and correctly prepared.
- Do not exceed the recommended water quantity.
- Use the filled mix for applications between 20mm and 50mm.
- For larger areas, maintain a minimum application thickness of approximately 2–3mm.
- Wash tools with clean water immediately after use.
- Always read the latest F. Ball Technical Data Sheet before application.
*Working, setting and drying times are based on approximately 20°C. Lower temperatures, greater repair depths and unsuitable site conditions will extend these times. Coverage varies according to application depth, substrate condition and mixing method.
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