F. Ball Subfloor Preparation Brochure - Flipbook - Page 15
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Adhesive Residues
Existing Floor coverings
Any old adhesive residues should be removed by
mechanical methods such as scraping, shot blasting
and grinding etc.
Most floor coverings such as flexible vinyl, linoleum,
rubber and textile floor coverings must be removed
and the substrate thoroughly prepared before fully
bonded floor coverings can be laid. Whilst there is a risk
involved, some thermoplastic tiles can be overlaid with
Stopgap 1200 or Stopgap 1500 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.
Certain compounds such as Stopgap 1200 and
Stopgap 1500 are able to cope with firmly adhered
and hard adhesive residues that are not water soluble.
However, for all other smoothing compounds at least
75% of the floor area should be exposed, followed in
most instances by the application of neat Stopgap P131,
allowed to dry and then the application of the appropriate
Stopgap smoothing compound. Please refer to Technical
Service for product selection.
Any remaining adhesive on wooden floors should
be overpinned with a minimum 6mm flooring grade
plywood and thoroughly secured at 100-150mm centres
(see wooden floors).
Note:
1. If in doubt remove all traces of adhesive residues back to a clean, sound
micro-textured dust free substrate.
2. Highly trafficked areas and areas subject to high temperatures such as
conservatories, should be mechanically prepared to remove all adhesive
residues, primed with dilute Stopgap P131, allowed to dry and a high
strength smoothing compound applied such as Stopgap Fast-Track 30
or Stopgap 300 followed by the recommended adhesive.
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 floor coverings with Styccobond
F41 adhesive providing there are no surface treatments
that will prevent adhesion.
Note:
Certain vinyl tiles were made using asbestos, and professional advice
should be taken before proceeding to remove these types of tile and their
adhesives. Generally with older buildings, these types of tiles were often
laid on floors that did not contain a Structural Damp Proof Membrane.
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