STOPGAP 1200 PRO: High Performance Smoothing Underlayment  


STOPGAP 1200 is a low odour, fast setting, fast drying, two component smoothing underlayment suitable for preparing sound internal subfloors prior to the installation of new floorcoverings.

STOPGAP 1200 is particularly suitable for use over old adhesive residues (including bitumen and carpet tile tackifiers) without the need for priming. STOPGAP 1200 can be used for patch filling timber floors prior to overlaying with plywood. It is suitable for use in clinical and biologically sensitive areas such as hospitals, laboratories, clean rooms etc.

STOPGAP 1200 mixed with STOPGAP 1200 Liquid has been tested in accordance with IMO 2010 FTPC Part 5 (IMO Res. MSC 307(88)) and Annex 2 item 2.2 and approved for use in marine application. STOPGAP 1200 can be applied to suitably prepared steel decks in light to medium-duty traffic areas. *Note STOPGAP 1200 is not to be used as an integrated part of a horizontal A-Class division. USCG approval No. 164.106/1121/WCL MED 0390.

STOPGAP 1200 is suitable for application over damp, clean, uneven concrete and sand/cement screeds, prior to application of STOPGAP waterproof surface membranes or STOPGAP ISOLATOR MEMBRANE.

STOPGAP 1200 is also suitable for use over a wide range of other subfloor types including STOPGAP waterproof surface membranes, sand/cement screed, concrete, granolithic, terrazzo, asphalt, steel, epoxy and polyurethane resins, ceramic and quarry tiles

  • Colour(s) Grey
  • Weight (packaged) 20KG
  • Form Powder
  • Thickness 2-10mm
  • Coverage 5.0m² at a thickness of 2 - 3mm