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  • Do not apply in direct sunlight, rain or wind and protect the finished work until fully cured (scaffold nets).
  • In case of rapid dehydration, dampen the finished work with water at regular intervals.
  • High humidity and low temperatures can increase the curing times considerably. Stainless steel plaster beads should be fixed with AM 51, not with gypsum products.
  • Protect other materials such as  glass, ceramics or metal etc. from contamination with appropriate coverings.
  • Clean tools after use with water.
  • Do not apply or allow to dry under an air or wall temperature of + 5ºC and falling or  more than + 30ºC.
Mortar Group CS II according to DIN EN 998-1
Grain Size 0-0.8mm
Compression Strength 1,5 –5 N/mm²
Conductivity value <0.83 W/mK (P=50%)
μ-value: 10
Water requirement 9.5 – 10.5 l/sack = 270 – 300 l/t
Yield approx. 27 l/sack = approx. 770 l/t 

                        RK38 Data Sheet             


Hydraulic lime plaster for use as basecoat and finishing coat, for all internal areas, onto most types of masonry and (see overleaf) rough cast concrete etc. Ideal for locations where building and human health issues are relevant and for historic conservation work. Can be coated with lime and cement bound products such as decor plaster finishes, silicate plaster finishes etc, all conventional paints and wall tiles.

A healthier alternative to gypsum or cement bound products, it can fulfill the function of a lime/cement bound render or mortar. Suitable in areas subject to high humidity and impact loading, in place of cement bound coats or mortars.

One 35kg bag will cover approx. 2.7m² at 10mm thick. This does not include any allowance for wastage


Grain Size
0 - 0.8 mm


35 Kg Paper sacks (36 sacks per pallet = 1260 kg)

1.3 kg/m2/mm

  • Brand: Baumit
  • Product Code: BAU7004
  • Availability: In Stock
  • £14.01
  • Inc VAT: £16.81

Tags: rk38, baumit, render