STYCCOBOND F21 is a high temperature grade bitumen/rubber emulsion adhesive designed for application by dipping. It is non-flammable, protected against bio-degradation and is suitable for use over normal underfloor heating installations.

STYCCOBOND F21 can be used for securing individual wood blocks at least 12mmthick, made from a wide variety of woods.

STYCCOBOND F21 can be applied to STOPGAP levelling compounds, structurally sound, smooth, dry, absorbent subfloors of concrete and sand/cement screed and plywood (minimum 6mm flooring grade).

STOPGAP waterproof surface membranes, sound asphalt and other non-absorbent surfaces must be skimmed with a minimum of 3mm of the appropriate STOPGAP levelling compounds.

On suitably prepared, absorbent surfaces use STYCCOBOND F21 diluted 1 part to 3 parts of water or use STOPGAP P131 diluted 4 parts of water and stir until thoroughly dispersed. This should be allowed to dry thoroughly before proceeding with the installation.

For dry (<65% RH) and suitably prepared anhydrite screeds use STOPGAP P121.

General information

Uniclass 2015

Pr_20_31_02_09 Bitumen rubber emulsion adhesivesPrimary


M42/10 Wood flooring

M42/110 Wood block flooring

Specification data - Bitumen rubber emulsion adhesives

Product Reference

Styccobond F21

Product Options

Technical properties:

  • Colour - Black.
  • Coverage Rates - 1m2 per kg
  • Open time - 30 minutes

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