15 Bonding

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UNILIT 15 (P0 -P1 - P2)

 MULTI PURPOSE BONDING LAYER

DESCRIPTION

UNILIT 15 is a fine bonding layer based on natural hydraulic lime and appropriate additional aggregates, of a maximum granulation of 1 mm for P1 and 2 mm for P2.

UNILIT 15 functions within the UNILIT system as a bonding bridge between the weak substrate, for example old lime plastering, reinforced concrete, old masonry, etc., and the Unilit mortars.

  

APPLICATION

UNILIT 15 is applied when the background is unable to guarantee an optimum bonding of the subsequent UNILIT mortars.

UNILIT 15/ P0 is used as a fine legalizing filler when old lime renders are removed. The mortar guarantees a perfect preparation of the substrate for further treatment.

When used as a lime wash UNILIT 15/ P1 is applied in a slurry layer using a brush. When used as a finishing layer it is applied in a 2 to 4 mm layer by trowel.

UNILIT 15/P2 mortar is used as a keying or priming coat in a maximum layer of 10 to 15 mm.

Substrates of reinforced concrete must be treated with a layer of Unilit 15 before applying the finishing mortars UNILIT 300-400-500.

UNILIT 15 is also used as a preparatory treatment for completely saturated backgrounds.

The UNILIT 15 mortar will not impair the permeability of the wall.

TECHNICAL PROPERTIES

Delivery form                                      powder

Density                                               1.580 kg/m³

Bending - tensile strength                     4 N/mm² after 60 days

                                                          6 N/mm² after 90 days

Bonding strength (DIN 18.555)                > 2 N/mm²

pH                                                       > 10,8

Granular size    Unilit 15/P0                    0,01 mm

                       Unilit 15/P1                    0 to 1 mm

                       Unilit 15/P2                    0 to 2 mm

Proportion water/Unilit 15                      0.20 l/kg

Mixing time                                           3 to 4 minutes

CONSUMPTION

Depending on the substrate and application :

approx. 1,5 to 1,8 kg/m²/mm

For an average bonding layer of 3 to 5 mm thickness : 3 to 6 kg/m²

Limewash : 2 to 2,5 kg/m²

COLOUR

Beige

 

PREPARATION  

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

Depending on the temperature and substrate UNILIT 15 is mixed with 5 to 6 litres of clean water for 25 kg of mortar powder. The mixing can be either manual or mechanical. Mixing time : 2 to 3 minutes.

The mortar can be applied manually or mechanically on dry or wet substrates. If the substrate is too dry, dampen down the surface prior to overcoating. The Unilit 15 mortar remains workable for 2 hours, in temperatures between 5°C and 40°C.

Drying time is 24 to 48 hours.  The substrate should be frost free for 48 to 72 hours after the application of the mortar.

PACKING 

30 kg bags.

REMARKS 

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

Info@arteconstructo.be

 

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