High Performance Smoothing Compounds

Stopgap 300

Heavy-Duty Floor Smoothing Compound

STOPGAP 300 is a fast drying, self-levelling, heavy duty smoothing compound, suitable for use in light to heavy duty areas. This smoothing compound is used for preparing sound absorbent and non-absorbent subfloors prior to the installation of new floorcoverings. With its high compressive strength, STOPGAP 300 offers a durable, stable base for floorlayers to work on.

It is dimensionally stable with heavy-duty properties, ensuring long lasting performance even in demanding environments. It comes as a pre-blended dry powder designed for application between 2 – 20mm, and enables users to easily apply it by hand or with a pump.

This smoothing compound allows users to lay floorcoverings on absorbent surfaces from 6 hours, and provides a walk-on-hard time of just 90 minutes at 20°C. This fast turnaround time helps flooring contractors to complete jobs more efficiently and to a high-quality standard. Its low odour, protein-free formula makes it suitable for use in biologically sensitive areas such as hospitals.

STOPGAP 300 delivers consistent results with its excellent fast drying and self levelling properties, making it a trusted choice by flooring professionals especially for heavy duty purposes. Explore how contractors have successfully used our heavy duty smoothing compound in real-world projects by reading our F-Talk article here.

  • Walk on from 90 mins

    Walk on from 90 mins

  • Lay Floorcoverings from 6 Hrs

    Lay Floorcoverings from 6 Hrs

  • 2mm to 20mm application thickness

    2mm t0 20mm application thickness

  • Heavy Duty

    Heavy Duty

  • Mix with Water

    Mix with Water

  • Fast drying
  • Excellent self-levelling properties
  • Protein free
  • Application thickness from 2-20mm
  • Water mix
  • Suitable for hand or pump application
  • Low odour

Coverage:

5.0m² at a thickness of 3mm | 3.0m² at a thickness of 5mm | 1.5m² at a thickness of 10mm | 1.3m² at a thickness of 15mm

  • SGS System Certification

    ISO 9001

  • SGS System Certification

    ISO 14001

  • SGS System Certification

    ISO 45001

  • CE Marking

    CE Marking

  • UKCA

    UKCA

  • EC1 Plus Very Low Emission

    EC1 PLUS

STOPGAP 300 is a fast drying, self-levelling, heavy duty smoothing compound, suitable for use in light to heavy duty areas. This smoothing compound is used for preparing sound absorbent and non-absorbent subfloors prior to the installation of new floorcoverings. With its high compressive strength, STOPGAP 300 offers a durable, stable base for floorlayers to work on.

It is dimensionally stable with heavy-duty properties, ensuring long lasting performance even in demanding environments. It comes as a pre-blended dry powder designed for application between 2 – 20mm, and enables users to easily apply it by hand or with a pump.

This smoothing compound allows users to lay floorcoverings on absorbent surfaces from 6 hours, and provides a walk-on-hard time of just 90 minutes at 20°C. This fast turnaround time helps flooring contractors to complete jobs more efficiently and to a high-quality standard. Its low odour, protein-free formula makes it suitable for use in biologically sensitive areas such as hospitals.

STOPGAP 300 delivers consistent results with its excellent fast drying and self levelling properties, making it a trusted choice by flooring professionals especially for heavy duty purposes. Explore how contractors have successfully used our heavy duty smoothing compound in real-world projects by reading our F-Talk article here.

  • Walk on from 90 mins

    Walk on from 90 mins

  • Lay Floorcoverings from 6 Hrs

    Lay Floorcoverings from 6 Hrs

  • 2mm to 20mm application thickness

    2mm t0 20mm application thickness

  • Heavy Duty

    Heavy Duty

  • Mix with Water

    Mix with Water

  • Fast drying
  • Excellent self-levelling properties
  • Protein free
  • Application thickness from 2-20mm
  • Water mix
  • Suitable for hand or pump application
  • Low odour

Coverage:

5.0m² at a thickness of 3mm | 3.0m² at a thickness of 5mm | 1.5m² at a thickness of 10mm | 1.3m² at a thickness of 15mm

  • SGS System Certification

    ISO 9001

  • SGS System Certification

    ISO 14001

  • SGS System Certification

    ISO 45001

  • CE Marking

    CE Marking

  • UKCA

    UKCA

  • EC1 Plus Very Low Emission

    EC1 PLUS

STOPGAP 300 AREAS OF USE

STOPGAP 300 is a heavy-duty smoothing compound 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.

Videos

How to mix and apply Stopgap 300 - Heavy-Duty Floor Smoothing Compound

STOPGAP 300 is a fast drying, self-levelling, heavy-duty smoothing compound suitable for use in light to heavy-duty areas for preparing sound absorbent and non-absorbent subfloors prior to the installation of new floorcoverings. STOPGAP 300 is dimensionally stable and is supplied as a pre-blended dry powder designed for application between 2 – 20mm. It is protein-free which allows it to be used in biologically sensitive areas such as hospitals.

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

You may also be interested in

Acrylic primer for non-absorbent surfaces

One-coat, high-performance waterproof surface membrane

High temperature, fibre-reinforced vinyl flooring adhesive.