Baumit Multi Contact MC55 W


Suitable as:

  • A remediating render over existing stable, mineral and synthetic-resin based plasters, renders and paintwork.
  • A keying coat in concrete and insulating boards.
  • A finish render on concrete formwork and fair faced masonry.
  • A thin to medium reinforcement layer (with reinforcing mesh) over mineral basecoat renders, synthetic renders, thermal renders and selected render carrier boards.
  • A topcoat layer over sound mineral substrates (CS II and CS III), concrete, synthetic renders, and stable painted surfaces.


Natural-white, fibre-reinforced multi-purpose bonding mortar.

Features and benefits:

  • A mineral, modified and easy to use contact mortar.
  • Good bonding strength.
  • Water vapour permeable and weather resistant.
  • For use in external and internal areas.
  • Fire resistance class: A2-s1,d0 according to EN 13501-1.
  • A system component of the Baumit StarSystem Nature range.

General information




Cement lime motar


25 kg

Bag size. (1 pallet = 42 bags = 1050 kg).

Uniclass 2015

Pr_20_31_53_30 Fibre-reinforced polymer-modified cementitious mortarsPrimary


M20/110 Cement:lime:sand

M20/10 Cement:lime:sand

Specification data - Fibre-reinforced polymer-modified cementitious mortars Enhanced data

Product Reference

Baumit Multi Contact MC55 W

Fire classification (EN 13501-1)



≤ 0.89 W/mK.

For P = 90% tabulated (≤ 0.82 W/mK for P = 50% tabulated).

Water vapour permeability

25 μ.

Application rate

4–5 kg/m².

As adhesive.

(App. 4.5—5.5kg/m² as basecoat).

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