30 Stabilising



UNILIT 30 (TD 13 S)





UNILIT 30 is a dry premixed mineral stabilising mortar based on hydraulic, naturally pure and selected lime. The product performs perfectly where rising damp / capillary action is prevalent.  UNILIT 30 is characterised by a high plasticity, slow but strong bonding and a low salt content.




UNILIT 30 mortar is impermeable to water but very vapour permeable and is very well suited to the UNILIT system as either an undercoat or as finishing layer. 

This mortar can also be applied to damp walls of buildings and cellars.  By the application of this mortar a wall is stabilised and the humidity present in the structure is separated from the finishing layer to be applied.  The optimum vapour permeability allows humidity present in the wall to be able to rapidly migrate from the structure and will withstand the effects of rising damp / capillary action.

The minimum total layer of Unilit 30 must be 20 mm thick at least. 

If a finish is applied to the Unilit 30 after 1 week, a bonding layer of Unilit 15/P1 or P2 is required.




Delivery form                                      powder

Density                                               1450 Kg/m

Tensile strength                                   0,6 N/mm

Compressive strength                           10 N/mm after 60 d

                                                          13 N/mm after 90 d

Modulus of elasticity                             6130 N/ mm

Coefficient of thermal conductivity       l = 0,65 W/m K

Vapour diffusion resistance                    m = 13,7

pH value                                              > 10

Fire classification                                 non-flammable MO

Granular size                                        0 to 3 mm

Mixing time                                          3 to 4 minutes

Proportion water / Unilit 30                   0.18 l/kg



Dependent upon the background and layer thickness.

Approx. 15 to 18 Kg/m/cm layer thickness.

Maximum thickness per layer:  15 to 20 mm for each layer






The substrate must be clean and free of all traces of oil and grease.  When the substrate has been treated with an impregnating product (silicone and similar) it is recommended to consult the supplier or manufacturer.

UNILIT 30 is mixed with clean water.  Depending on the situation and substrate 4 to 5 litres of water are mixed with 25 kg of powder. The mixing can be done either manually or mechanically, for 3 to 4 minutes.

The mortar can be applied directly to either dry or damp substrates.  If the substrate is too dry, dampen down the surface prior to overcoating.

UNILIT 30 remains workable for 2 hours, in temperatures between 5C and 40C.  The drying period is 24 - 48 hours.  It must be protected from frost for 48 - 72 hours after its application.

If desired, a colour finish (Unilit 300-400 or lime paint) can be applied within 2 or 3 days after the application of the Unilit 30.  For silicate paint a waiting period of 2 to 3 weeks must be respected.



30 kg bags



In case of doubt regarding the substrate, consult our technical service department.  The material must be stored dry and frost free above ground.  The maximum storage time is 6 months.  Our advice and information is given in good faith and depending on the latest developments of our products.  We guarantee the constant quality of our products, but do not accept any liability concerning the application.


Arte Constructo bvba - Molenberglei 18 - B- 2627 Schelle (Belgium)

tel: +32 (0)3 880.73.73   fax: +32 (0)3 880.73.70



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