Multipor FIX X730 lightweight adhesive mortar/plaster

Product overview

Where is it used?

• Multipor FIX X730 is applied to the back of the Multipor boards to bond them to the wall surface.
• It is used internally to level salt contaminated or damp masonry.
• As a plaster coat, it is used internally and reinforced with a fibreglass mesh, such as Baumit StarTex mesh.

How is it used?

• Brush and/or wash down masonry surface to remove loose material, dust and any salt contamination.
• Once the surface has dried, apply a splatter coat of Baumit SV61 Sanova Pre to create a key.
• If the wall surface is uneven, apply a coat of Multipor Fix X730 to level it.
• The back of the boards should be fully coated with the FIX X730 and combed with a 10-12mm knotched trowel, to ensure an even thickness. All ridges must be full to get an even thickness coat.
• The boards are then applied to the wall around 5mm away from adjacent boards.
• Once in position, slide the board 5mm up to the adjacent board in a direction perpendicular to the direction of combing. This ensures that you create a fully filled layer behind the boards, with no voids present.
• As a plaster layer, apply to the surface of the Multipor boards and comb with a 10-12mm knotched trowel to ensure an even thickness.
• Whilst wet, lay in a layer of the Baumit StarTex mesh and trowel so that the mesh is covered by around 1mm of the FIX X730 plaster.
• Leave to dry for 4-5 days before applying the Baumit RK 70N lime plaster finish coat or Baumit Klima Glatte lime finish coat for a finer finish.

How much will you need?

• Each 20kg bag will cover up to 5.5m2 at 5mm.
• You will need to use a 5mm coat as the adhesive layer and also as the base coat plaster layer.