Why does it work? Stopgap 1200 Pro

This month, we explain why Stopgap 1200 Pro was developed and why it works.

Where it’s needed
Stopgap 1200 Pro was developed for smoothing subfloors after a previous floorcovering has been removed and adhesive residues of the previous adhesive are left behind on the floor. Normally, F. Ball advice would be to remove all traces of adhesive using a mechanical method, such as scabbling or grinding, before an underlayment is applied.

Stopgap 1200 Pro has been formulated so that it can be applied directly over subfloors with some residue still in place, as long as any loose residue is removed and the floor is clean and dry.

What’s different about it?
Stopgap 1200 Pro is able to maintain its integrity when applied to subfloors with adhesive residues still present through the way the underlayment interacts with the dried adhesive. Specifically, it is formulated to minimise the stresses inflicted on the adhesive residues as it sets – in a traditional underlayment, the strength of the underlayment, combined with the initial expansion and shrinkage, can cause the softer residue to debond from the subfloor causing the entire installation to lift and crack, ultimately resulting in total failure of the floor.

Time-saving benefits
On large projects, in particular, the necessity of removing adhesive residue adds significantly to the time required to complete a project and, also, the cost. In most cases, Stopgap 1200 Pro doesn’t require the subfloor to be primed, again saving significant time and expense. The time saving offered by the product is further enhanced by its fast setting time of around one hour and its ability to be ready to receive a new floor covering from as little as four hours after application.

Over what type of subfloor can it be used?
Stopgap 1200 is also suitable for use over a wide range of other subfloor types, including Stopgap waterproof surface membranes, granolithic, terrazzo, asphalt, steel, old vinyl asbestos tiles, epoxy and polyurethane resins, ceramic and quarry tiles.

It can also be applied over damp, clean, uneven concrete and sand/cement screeds, prior to the application of Stopgap waterproof surface membrane or Stopgap Isolator Membrane.

‘Go to’ product
Because of its versatility, adaptability and fast setting characteristics, many contractors opt to use Stopgap 1200 Pro as their ‘go to’ smoothing underlayment for many types of projects, not only where they are applying underlayment over adhesive residues.

For more information on Stopgap 1200 PRO, visit the F. Ball website.