Tremco SF520 Flexible Wood Adhesive is a high strength, flexible, single component advanced polymer adhesive for surface bonding most wood flooring including wood blocks, wood mosaic panels, engineered, laminated and solid wood plank/strip flooring.

Use over most common substrates, sand/cement screeds, concrete, calcium sulphate screeds, stone, metal, timber and epoxy membranes.

Not suitable for wood flooring with bitumen-based backings.

Compatible with most underfloor heating systems. Please contact Rawlins Paints Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for more information.

Benefits:

• Strong and flexible
• Permanently elastic bond
• Solvent free and moisture free
• Compatible with most under floor heating systems
• EC1 Certified for very Low Emissions
• Using a B3 or a 3mm x 6mm ‘V’ or a notched trowel the coverage is approx. 0.8 - 1.1 kg/m²
• For detailed product information please see the Product Data Sheet

Preparation:

All phases of installation should comply with BS 8201, BS 8203, CP 102 and /or other local installation standards and codes of practice.

Subfloors:

• Ensure the subfloor is flat, clean, sound and dry and free from contaminants that may hinder adhesion, this includes, paint, varnish, polish, old adhesive residues and plaster spots
• Existing wooden subfloors must have an intact base DPM
• The subfloor should be tested in accordance with British Standards, using a properly calibrated and insulated hygrometer
• A reading of 75% RH or less confirms that the subfloor is satisfactorily dry. Where this has not been attained, it is necessary to apply a Tremco Surface Membrane to suppress residual moisture. Please contact Rawlins Paints Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for more information
• Ensure the timber is acclimatised in accordance with the manufacturer’s instructions in the environment in which it is to be laid
• Always allow an expansion gap around any perimeters or columns to allow for natural movement of the wood when bonded

Smoothing Compounds:

• Mechanically remove all surface treatments on concrete bases
• Lightly abrade calcium sulphate to remove any surface laitance. Always prime before applying a suitable Tremco Smoothing Compound to calcium sulphate screeds
• Apply a suitable Tremco Smoothing Compound at a minimum thickness of 3 mm
• See relevant technical data sheet for full information

Existing Floor Coverings:

• Not recommended for use over existing floor coverings

Priming:

Ensure substrate is suitable for the adhesive before application. Very porous substrates can be primed with Tremco CS150 Acrylic Primer

Application:

• On a smooth floor spread evenly over the floor surface with a triangular notched trowel cut 3 mm deep x 6 mm
• For rough textured floors, a deeper notched trowel may be required. This will adversely affect the coverage rate of the adhesive
• Spread the adhesive with a sweeping motion at a 60° angle and place the wood into the adhesive while it is still wet
• Press firmly or gently tap the wood into the adhesive to ensure good overall contact. Where necessary use heavy objects to hold the wood firmly in place during curing time
• The bonded wood will be suitable to take foot traffic 6 to 8 hours after application. It should be left for 48 hours before sanding or varnishing takes place

Technical Data:

Please contact Rawlins Paints Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for more information.