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STOPGAP 1400 is a two-component, high flow smoothing compound designed for high-quality preparation of internal subfloors, prior to the installation of new floorcoverings. Flooring contractors use STOPGAP 1400 to create a smooth surface over a wide range of subfloor types. This includes concrete, sand/cement screed, and STOPGAP waterproof surface membranes.
Designed specially to maximise ease-of-use, this high flow smoothing compound has a walk-on-hard time of just 90 minutes and is ready to receive most floorcoverings from 12 hours. This benefits flooring contractors allowing them to complete projects quickly and efficiently with minimal downtime.
Its low-odour, protein-free formulation allows use in biologically sensitive areas, such as hospitals, and where adjacent areas remain open. It is also suitable for use over normal underfloor heating systems ensuring versatility for new builds and renovations.
STOPGAP 1400 maintains dimensional stability to ensure long-lasting performance. It comes as a pre-blended, dry powder that you mix with our STOPGAP 1400 Liquid. It can be easily applied between 2 – 10mm.
A 20kg bag of STOPGAP 1400 powder mixed with 4.5 litres of STOPGAP 1400 Liquid will cover an area of approximately 5.9m2 at a thickness of 2mm.
Learn more about STOPGAP 1400 in our F-Talk article here.
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Walk on from 90 mins
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Lay floorcoverings from 12 hrs
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2mm to 10mm application thickness
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High Flow
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Suitable over electric ufh
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Mix with 1400 liquid
- Excellent self-smoothing properties
- High flow properties
- Low odour
- Application thickness from 2-10mm
- Walk-on from 90 minutes
- Lay floorcoverings from 12 hours
- Protein free
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ISO 9001
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ISO 14001
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ISO 45001
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CE Marking
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UKCA
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EC1 PLUS
Stopgap 1400 Overview Data sheets and Downloads

Stopgap 1400 Gauging Liquid
STOPGAP 1400 Liquid is the Gauging Liquid for STOPGAP 1400 in order to make a high flowing, two-component smoothing compound suitable for preparing sound internal subfloors prior to the installation of new floorcoverings.
Must be mixed with Stopgap 1400 Powder.
STOPGAP 1400 AREAS OF USE
STOPGAP 1400 is suitable for use over a wide range of subfloor types including sand/cement screed, concrete, calcium sulphate (e.g. anhydrite), minimal adhesive residues, sound asphalt, granolithic, terrazzo, epoxy and polyurethane resins, ceramic and quarry tiles and STOPGAP waterproof surface membranes.
STOPGAP 1400 is dimensionally stable and is supplied as a pre-blended dry powder and
STOPGAP 1400 Liquid</a> which is designed for application between 2 – 10mm.
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STOPGAP 1400 is a two-component, high flow smoothing compound suitable for preparing sound internal subfloors prior to the installation of new floorcoverings.

Need help?
Should you require further information or advice regarding any F. Ball products, please contact the F. Ball technical service team on +44(0)1538 361633 or by e-mail: technical@f-ball.co.uk For the latest information on adhesive recommendations, please refer to the F. Ball Recommended Adhesives Guide