BAUMIT DuoContact Insulation and base coat adhesive 25kg

  • Brand: BAUMIT
  • Product Code: BDUO25
  • Delivery date: 1-2 days
  • £11.99
  • Ex Tax: £9.99

Product: Dry, pre-prepared insulation and base coat adhesive.

Composition: Cement, silica sand, synthetic resins, additives.

Used for:

- polystyrene boards

- reinforced layer mesh / fiberglass mesh

- thermal insulation of walls 

- leveling wall inequalities up to 5 mm

- smoothing surfaces before applying paint and thin coat renders

- for external and internal use



Substrate: It must be structurally sound, clean, dry, absorbent and not chilled, dust-free and grease, free of efflorescence and loose dirt.

Preparation: The contents are poured into a container of clean water. Stir with a slow speed mixer to obtain free of lumps - a homogeneous mass. Leave for 5 minutes, then stir again briefly. Working time approximately 1.5 hours.

Bonding: Wall surface must be smooth (± 5 mm / m). Greater inequality should be even in a separate operation. Inequalities of less than 10 mm in level can be treated with Baumit DuoContact. Apply mortar to the polystyrene board in a continuous hump on its outskirts and three patches along the axis of the board. On level ground it you should apply the mortar with a notched trowel over the entire surface. Pinning boards should be made after a 24 hour break.

Filling: Once polystyrene boards are fixed to the surface, apply mortar with a 10mm notched trowel and embed vertical strips of fiberglass mesh, completely covering it with mortar filler. Combined mesh strips overlap the width of min. 10 cm. The minimum thickness of putty 2 - 3 mm. Uneven surfaces may not be aligned reinforcing layer. Gaps in polystyrene boards do not fill with mortar filler. If the reinforcing layer has not been completed within two weeks of adhesion of polystyrene boards - it should be sanded with coarse sandpaper or a special grater for polystyrene. Before the start of the subsequent steps, min. 3-day break technology is required.

Tips: Ambient temperature, substrate and material during processing and at least 12 hours of application may not be lower than +5 ° C. Do not use any additives and admixtures. High humidity and low temperatures significantly extend the drying time of the product. In the case of the surface elevation of reinforcement with fiberglass mesh, note that it is not damaged or does not remain exposed (not covered by a layer of mortar putty). With double reinforcement, apply a second coat after at least one day. Wash the tools immediately after using the mortar, with clean water. In the course of work remember to protect areas which can be at risk of contact with mortar (glass, ceramics, metal, etc.).

Recommended finishes: mineral, acrylic, silicone and silicate renders

Consumption as an insulation adhesive: 4 kg/m2

Consumption as a base coat: 5 kg/m2

Application temperature: +5 to +25 ° C

Mixing ratio 4.5 - 5.0 liters of water per 25 kg

Prepared mortar should be used in approximately 1.5h

Product Info
Weight 25kg
Colour Grey
Coverage - as an insulation adhesive approx. 6m2; - as a base coat approx. 5m2;