Buy & Bostik AP 250 Flexibond Primer & Flexible Admixture 2.5L Online

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Bostik AP 250 Flexibond Primer & Flexible Admixture 2.5L

Improves Flexibility And Tensile Strength

Resistant To Minor Movements & Vibration

Improves The Deformability Of C2 Adhesives To Meet S1 Classification

Size: 2.5L

Coverage:
- As a diluted primer, 2.5 litres will cover approx. 75m² Approx. (1 part primer to 2 parts water).
- 2.5 litres of diluted AP 250 Flexibond per 20kg of adhesive.
- Approx. 0.5 litres of diluted AP 250 Flexibond per 5kg of grout.

£17.99 ex vat
£21.59 inc vat
in stock
Description
Specification
Attachments

Bostik AP 250 Flexibond is an acrylic dispersion polymer for use as a flexible admixture with cement-based tile adhesives and/or grouts. It can further be used as a primer/sealer for ready-mixed tile adhesives and floor underlayment screeds.

Bostik AP 250 improves flexibility, shear modulus and tensile strength giving greater resistance to minor movements and vibrations. Cement pores are part filled with the polymer, reducing permeability and therefore reducing any damage by liquid transfer. Adhesion is enhanced when fixing to non-porous substrates and tiles. Improves the deformability of C2 adhesives to meet the requirements of class S1 according to EN12022.

The addition of Bostik AP 250 Flexibond to a non-polymer modified adhesive or grout is required where surfaces are prone to very minor movement and vibration, or where direct fixing to glazed tiles or other impervious surfaces is required.

Priming / Sealing:
Do not apply neat, as skinning may occur which may cause delamination. Apply to the substrate using a brush. If the surface is still absorbent, apply a second coat. Dries in approximately 1 hour.

Tiling:
Ensure that all surfaces are clean, dry, sound and free from dust, grease or any contaminating barrier. Make good any unsound areas and remove flaky or peeling layers before tiling.

Grouting:
Ensure that tiles are firmly fixed and the adhesive is completely set. Bostik standard set adhesives should normally be left for at least 24 hours before grouting. Bostik rapid-setting adhesives should be left for at least 3 to 4 hours, however, these times will be increased with sealed or impervious substrates or at low ambient temperatures, or high humidity. Ensure tiles and joints are clean, dry, sound and free from dust, grease or any contamination.

Colour: White.
Form: Liquid.
Specific Gravity: 1.0 approx.
Composition: Acrylic dispersion polymer.
Application Temperature: +5°C to +25°C.
Service Temperature: Up to 40°C.
Mix Ratio: 1 part AP 250 Flexibond to 2 parts water by volume when used as a flexible additive and as a primer.
Coverage:
- As a diluted primer 2.5 litres will cover approx. 75m².
- Approx. 2.5 litres of diluted AP 250 Flexibond per 20kg of adhesive.
- Approx. 0.5 litres of diluted AP 250 Flexibond per 5kg of grout.
Storage/Shelf Life: Store for up to 18 months from the date of manufacture when stored in original, unopened packaging under cool, dry conditions within the temperature range of +5°C to +25°C and out of direct sunlight. Protect from frost.