F Ball Stopgap 300 HD Self-smoothing

Product Information

Typical applications are: removal of vinyl, rubber, carpets, fully bonded wood flooring, ceramic, stone and terrazzo tiles. Multistripping can also be used to remove levelling compounds, adhesives, thermoplastic markings and scrape surface contaminants.

STOPGAP FILL AND PRIME is a two component, flexible cement primer that is flexible with thixotropic properties to allow the filling of joints. STOPGAP FILL AND PRIME should be applied using a steel trowel and spread evenly on to the prepared substrate providing a smooth, uniform surface. The consistency has been designed so that joints in raised access panels are filled. However for application over wide joints it is advisable to mix a unit with reduced liquid content and fill the joints prior to a subsequent coating of STOPGAP FILL AND PRIME mixed to standard consistency. Then apply STOPGAP 700 Superflex or STOPGAP 1200 PRO. F. Ball and Co. Ltd. – the UK’s leading manufacturer of flooring adhesives and floor preparation products for the contract flooring industry. Grinding an uneven surface will skim across the high profile and not touch the lower ones unless the surface is reduced to the lowest point of the surface being prepared. P131 PRIMER, allowed to dry and then the application of the appropriate STOPGAP smoothing underlayment. Please refer to Technical Service for product selection.Note: Hard compositions may create a problem for smaller planing machines as there is not enough weight to cut into the surface. Can be applied direct over underfloor heating screeds using a coverage of 1.8m²/kg where readings are up to 90% RH Ceramic, terrazzo and quarry tiles are unaffected by moisture but dependant on their water absorption may be sufficiently permeable to allow the passage of moisture vapour and are often laid in areas which do not incorporate a damp proof membrane. Where this is the case, these bases should be covered with a layer of flooring grade asphalt complying with BS 8204. Alternatively, the use of a STOPGAP F77 Waterproof Surface Membrane can be applied, providing the substrate has been sufficiently prepared by mechanical means and the grout lines lightly raked to remove any contaminants. In both cases this should be followed by priming with neat STOPGAP P131 PRIMER and allowed to dry before applying a minimum 3mm of the appropriate STOPGAP floor smoothing underlayment. If either method is not possible, lift the tiles and relay the floor. STOPGAP ISOLATOR Membrane may also be used in certain situations.

Grinding would be selected for smoothing concrete, removal of coatings, adhesives, levelling compounds and contaminants. Grinding machines are also used to polish a variety of surface finishes. The substrate should be prepared by mechanical means such as contained shot blasting. If a waterproofing admixture is known to have been used, further testing should be carried out with the proposed system to ensure complete compatibility and adhesion to the host substrate. Before the final treatment to bring a subfloor up to the standard required for the application of floorcoverings to begin, the condition of the base must be investigated and any necessary treatments or repairs carried out. Failure to do this increases the potential for premature failure, which is counter productive and expensive to rectify. In all cases chipboard and plywood must be primed with dilute STOPGAP P131 PRIMER as recommended. Sterling Board OSB (Oriented Strand Board) must be flooring grade appropriate for the construction of the floor, nature of the building and the expected design loading should conform to BS EN 300, Type OSB/2, Type OSB/3 or Type OSB/4.Some acrylic based curing agents may be overcoated with certain STYCCOBOND adhesives and advice should be sought from F. Ball Technical Services before proceeding. If in doubt always mechanically prepare the surface. Most floorcoverings such as flexible vinyl, linoleum, rubber and textile floorcoverings must be removed and the substrate thoroughly prepared before fully bonded floorcoverings can be laid. Whilst there is a risk involved, some thermoplastic tiles can be overlaid with STOPGAP 1200 PRO or certain floorcoverings providing the tiles are firmly bonded to the subfloor and all traces of polish or any other contaminant which would prevent good adhesion are removed e.g. with STYCCOCLEAN C140 Floor Cleaner. If this cannot be achieved then the tiles must be removed, and the substrate suitably prepared. With some carpet tiles it is, however, possible to install direct to existing resilient and smooth floorcoverings with STYCCOBOND F41 adhesive providing there are no surface treatments that will prevent adhesion.

The finished profile is dependent on the size of the machine and the type and size of the flail selected by the operator. Cores may be taken to determine the depth of penetration and can assist in deciding on whether or not it is possible to prepare a surface for overlaying. It may be necessary to carry out adhesion tests to ensure adequate adhesion is obtained on a contaminated surface.This Subfloor Preparation Guide describes the different types of procedures available to produce the most acceptable substrate possible, ready for the installation of one or more of our products. A surface tensile pull-off strength of at least 1.5 N/mm 2 or in-situ crushing resistance test, with a maximum depth of indentation of 3mm, in accordance with BS 8204, is required onto a prepared subfloor before the application of floor smoothing underlayments and serves as a good guide as to the integrity of the floor.