BC F46 ADHESIVE 5L

INTRODUCTION STYCCOBOND

F46 is a solvent free pressure sensitive acrylic adhesive that dries to a permanent tacky film.It is used to reduce the incidence of trowel serrations shadowing through thin vinyl flooring and is designed to give strong initial tack and a high bond strength. It has an infinite open time, protected against biodegradation and is suitable for use over normal underfloor heating installations.

STYCCOBOND F46 can be used for securing a wide range of PVC sheet and tile floorcoverings. See the F. Ball Recommended Adhesives Guide for details of specific floorcoverings. STYCCOBOND F46 has been tested to the standards of the International Maritime Organisation and approved for use in marine floor installations.

STYCCOBOND F46 can be applied to STOPGAP smoothing underlayments, structurally sound, smooth, dry subfloors of concrete and sand/cement screed, plywood, flooring grade chipboard and hardboard. Sound flooring grade asphalt must be skimmed with a minimum of 3mm of the appropriate STOPGAP smoothing underlayment.

STYCCOBOND F46 can be applied directly to epoxy resin STOPGAP waterproof surface membranes and other non-absorbent subfloors where the surface finish is smooth enough to permit the installation of resilient floorcoverings. For details on other subfloors contact our Technical Service Department.

TECHNICAL INFORMATION

Colour White Consistency Viscous Liquid

Coverage Rate (Approx.) 3m2 per litre with a STYCCOBOND A2 trowel 4m2 per litre with a STYCCOBOND FINE NOTCH (A1) 5m2 per litre with 1.5mm x 5mm trowel Drying Time (Approx.) 40 minutes depending on temperature, humidity and 

SURFACE PREPARATION

Proper subfloor preparation is essential for the correct installation of any floorcovering. Subfloors must be structurally sound, smooth, dry (<75% RH) and free from laitance and any contaminants which will affect adhesion.

Use STYCCOCLEAN C140 for removing grease, oil, polish, soap etc. from non-absorbent substrates. Concrete and sand/cement screeds must be fully cured and any laitance or surface treatments must be removed.

The temperature of the floor must be maintained above 10°C throughout the application and drying of the adhesive. Underfloor heating must be off for at least 48 hours before, during and after application. For detailed information, request the F. Ball Subfloor Preparation Guide.

DAMP SUBFLOORS

The Relative Humidity (RH) of the subfloor can be measured using the F. Ball Digital Hygrometer. Where the RH value is greater than 75% the appropriate STOPGAP waterproof surface membrane should be applied.

SMOOTHING

To ensure a level surface on which to adhere to, uneven and irregular surfaces should be suitably prepared using the appropriate STOPGAP smoothing underlayments.

PRIMING

Highly absorbent subfloors such as sand/cement screeds and plywood etc. may cause high absorption of the adhesive. Use STOPGAP P131 diluted 4 parts of water and stir until thoroughly dispersed. This should be applied and allowed to dry thoroughly before proceeding with the installation. Dry and suitably prepared calcium sulphate screeds e.g. anhydrite must be primed with neat STOPGAP P121.

ADHESIVE APPLICATION

Holding the trowel at an angle of 60°, spread the adhesive evenly over the subfloor. Following the floorcovering manufacturers laying instructions and using the guidelines given below, place the floorcovering into the adhesive and press from the centre outwards to exclude any air; then roll from end to end and side to side using the 68kg flooring roller. 1 to 4 hours later roll again in two directions.

Absorbent surfaces

Apply the adhesive using a STYCCOBOND A2 or 1.5mm x 5mm ‘V’ notched trowel. Immediately roll with a paint roller which has been pre-coated with adhesive, to obtain a smooth, uniform appearance. This will minimise adhesive grin through and maximise surface area of contact for adhesion. Alternatively use the A1 trowel. Floorcoverings can be placed into the adhesive immediately although it is advisable, when installing tiles, to leave the adhesive for approximately 10 minutes before placing the flooring, reducing the potential for sliding.

Non-absorbent surfaces

Apply the adhesive as previously described but allow the adhesive to dry to a firm tack before laying the floorcovering. Roll tiles immediately after placement into the dry adhesive film using a 68kg flooring roller.

Do not use the paint roller to extend the area covered by the adhesive, as this will reduce adhesion.

Note:

When trowelling the adhesive directly onto cured STOPGAP waterproof surface membranes, ensure that the membrane is not damaged or punctured by the trowel. PRECAUTIONS Do not apply loads or move furniture on the floorcovering until the adhesive has fully set. Do not weld vinyl floorcoverings until the  adhesive has had sufficient time to develop a good bond, normally 24 hours.