Stopgap 600 Base

Stopgap 600 Base

Ball, F and Co Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Base compound designed for use where floor levels need to be raised quickly and economically, prior to the application of a suitable floor smoothing underlayment.

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STOPGAP 600 is a base compound designed for use where floor levels need tobe raised quickly and economically in light to heavy-duty applications onto soundabsorbent and non-absorbent subfloors.

STOPGAP 600 sets sufficiently in as little as 3 hours allowing it to be capped withSTOPGAP Fast Track 30, 200, 300 or 1200 self-smoothing underlayments prior tothe installation of new floorcoverings. STOPGAP 600 is also suitable for use underSTOPGAP 800 Wearcoat.

STOPGAP 600 is dimensionally stable and is supplied as a pre-blended dry powder,which is designed for application between 5-50mm in one application. It is protein-freewhich allows it to be used in biologically sensitive areas.

STOPGAP 600 is suitable for use over a wide range of subfloor types including sand/cement screed, concrete, granolithic, terrazzo, epoxy and polyurethane resins, ceramicand quarry tiles and STOPGAP waterproof surface membranes.


Absorbent surfaces - Prime with dilute STOPGAP P131 to prevent uncontrolledrapid drying of the compound.

Non-absorbent surfaces – such as adhesive residues, terrazzo, quarry tiles andSTOPGAP waterproof membranes should be primed with neat STOPGAP P131 toensure that good adhesion is obtained between the compound and substrate.

The primer should be used in accordance with instructions printed on the bottle andmust be allowed to dry before applying the compound.

General information

Uniclass 2015

Pr_35_31_06_80 Smoothing and levelling underlay compoundsPrimary


M10/160 Proprietary self smoothing levelling screeds

M10/7 Proprietary quick drying levelling screeds

M40/460 Smoothing underlayment

M42/10 Wood flooring

M42/110 Wood block flooring

M42/120 Mosaic parquet panel flooring

M42/150 Composition block flooring

M42/20 Composition block flooring

M50/110 Resilient floor tiling

M50/45 Existing floor covering removed

M50/460 Smoothing/ levelling underlayment compound

M51/110 Carpeting

M51/150 Carpeting for stairs

Specification data - Smoothing and levelling underlay compounds

Product Reference

Stopgap 600

Product Options

Technical properties:

  • Class (to EN 13813:2002): CT-C30-F7.
  • Working time at 20°C: 20–30 minutes.
  • Setting time at 20°C: 3 hours.
  • At 3 mm ready to receive floor smoothing compounds: 3 hours.
  • Consumption per mm thickness: 1.81kg/m².

Compressive strength (N/mm², to EN13892-2):

  • 1 Day: >15.0
  • 7 Days: >25.0
  • 28 Days: >30.0

Flexural strength (N/mm², to EN13892-2):

  • 1 Day: >2.0
  • 7 Days: >5.0
  • 28 Days: >7.0

Digital objects

Platform Compatible Version Certified to

Revit 2017




Download now from NBS National BIM Library


Third party certifications

  • Quality Assurance - certficate : STOPGAP 600 BASE has been tested in accordance with IMO FTPC Part 6(IMO Res. A687(17)) and Annex 2, item 2.2 and approved for use in marine application.STOPGAP 600 BASE can be applied to suitably prepared steel decks in light to heavy-dutytraffic areas. USCG approval No. 164.106/1121/WCL MED0529TE

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