Unilit Pedes 'M' Lime Wearing Surface / bedding Mortar and Grout 30kg Bag

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A genuinley unique and versatile product this lime mortar base provides a hard wearing wearing surface to a lime based screed, a bedding mortar for ceramic, stone or natural tiles and as a grout.

Unilit Pedes is a traditional, dry premixed mineral mortar based on natural hydraulic lime as the binder and appropriate well-graded aggregates. Mixed on site with locally sourced washed aggregates this is a simple and easy way to complete a floor. Breathable and ultra low salt content it is the perfect solution where breathablity and a tough finish is required.

Unilit Pedes is characterised by a slow but strong bonding, a high plastic­ity, a low content of soluble salts and an excellent water vapour permeabil­ity. This natural hydraulic lime mortar is inherently stable and designed to reduce problems of micro cracks along with premature drying out.

Used with Technopor structural insulating sub-base and Unilit FenXA as a screed this forms a breathable, structural hardwearing floor.

The natural hydraulic lime binder, used to prepare the pre-blend, conforms to the European Standard EN 495-1 for building limes. The mortar Unilit Pedes conforms to the European Standard UNI EN 998-1.

  • Inexpensive - very cost effective
  • Breathable
  • Simple and easy to cast no specialist equipment required
  • No need for expansion or slip joints
  • Tested and proven
  • Suitable for use with underfloor heating
  • Very low soluble salt content
  • Suitable for most floor finishes 
  • Can be used outside

As a guide only a yelid of 1.7kg of dry Pedes per 1mm thickness per square metre can be used to give estimated quantities. 

Price is per 30kg bag

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Unilit PEDES M as a wearing surface

Unilit Pedes is a traditional, dry premixed mineral mortar based on natural hydraulic lime as the binder and appropriate well-graded aggregates.

Unilit Pedes is characterised by a slow but strong bonding, a high plastic­ity, a low content of soluble salts and an excellent water vapour permeabil­ity. This natural hydraulic lime mortar is inherently stable and designed to reduce problems of micro cracks along with premature drying out.

The natural hydraulic lime binder, used to prepare the pre-blend, conforms to the European Standard EN 495-1 for building limes. The mortar Unilit Pedes conforms to the European Standard UNI EN 998-1.

 Properties

 

 Granular sizing (EN 1015-1)         

 max. 1.4 mm

 Bulk density (EN 1015-10) ca.

 1650 kg/m³

 Compressive strength (EN 1015-11) ca. 

 5 N/mm²

 Adhesive strength (EN 1015-12)

 > 0.3 N/mm²

 Walkability

 after 48 h

 pH         

 > 10.5

 Fire resistance classification (EN 13501)

 A1

 Proportion water/preblend ca. 

 0,22 l/kg

 Mixing time max.

 3 minutes

 Packing

 powder in bags of 30 kg

 Colour

 beige

 Thickness:      

Unilit Pedes M    Nominal 10mm as bedding layer applied in two 5mm applications        

Mix:

Premixed natural hydraulic lime mortar.

 Mix proportions:

The mortar is mixed with clean water with a slow speed electric paddle for a period of max. 3 minutes (6,5 l water for a bag of 30 kg). A creamy workable mortar is obtained, which has approximately 3 hours of open time.

Preparation:

Prior to application, the substrate must be cleaned and freed of all traces of oil and grease. The substrate benefits from being slightly dampened.  Saturation of the substrate is not recommended, as this will influence negatively impact upon the bond of the hydraulic lime mortar to the substrate as well as the aesthetic appearance.

 Application:

The mortar is mixed with clean water with a slow speed electric paddle for a period of max. 3 minutes (6,5 l water for a bag of 30 kg). A creamy workable mortar is obtained, which has approximately 3 hours of open time.

The mortar must not be applied at temperatures below +5°C nor when a risk of frost exists. It should never be applied on to a frozen surface or in the case of thick fog. In hot, windy and dry conditions measures should be taken to prevent accelerated drying out of the freshly applied mortar. The applied mortar must be protected from frost and direct sunlight for 48 to 72 hours after their application.

 Apply directly to dry substrates. If the substrate is too dry, dampen down the surface prior to application. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.


Sand source/type: Not applicable - mortar pre-mixed.

Unilit Pedes M as a bedding mortar / tile adhesive (all natural and ceramic) tiles

 Mix proportions:

The mortar is mixed with clean water with a slow speed electric paddle for a period of max. 3 minutes (6,5 l water for a bag of 30 kg). A creamy workable mortar is obtained, which has approximately 3 hours of open time.

 Preparation:

Apply directly to the FenXA surface up to 10mm and bed tiles directly into mortar.

 Application:

The mortar must not be applied at temperatures below +5°C nor when a risk of frost exists. It should never be applied on to a frozen surface or in the case of thick fog. In hot, windy and dry conditions measures should be taken to prevent accelerated drying out of the freshly applied mortar. The applied mortar must be protected from frost and direct sunlight for 48 to 72 hours after application.

 Sand source/type: Not applicable - mortar pre-mixed.

 Unilit Pedes M for pointing a tiled floor

 Mix:

The mortar is mixed with clean water with a slow speed electric paddle for a period of max. 3 minutes (6,5 l water for a bag of 30 kg). A creamy workable mortar is obtained, which has approximately 3 hours of open time.

 Application:

The mortar is mixed with clean water at a ratio of 5 - 6 litres of water to a 30 nbsp;kg bag of ready mix Pedes M mixing is undertaken with a slow speed electric paddle mixer for a period of 3 to 5 minutes.  A creamy and workable mortar is achieved which will have an open working time of approximately 3 hours. Allow a minimum of 1 to 2 days after the laying of the floor tiles before the joints are filled and finished with the appropriate pointing tools. In the case of very narrow joints i.e. <3mm please use Unilit Pedes F, same bag size and price as Pedes M. Excess mortar is wiped away neatly with a sponge.  A drying period of 1 to 2 days has to be respected, before the finished tiled flooring can be walked upon.

FINISHED FLOORING

Water-proofing the finished screeds - Beeswax coating for polished/natural lime floors

To protect and make the surface resilient to water when the screed is to be left exposed, the surface can be impregnated with beeswax. The beeswax should not be applied for three or four weeks after the laying of the screed. This is applied in a first layer until a complete saturation of the surface is achieved.  A second layer of beeswax, acting as a protection of the first layer, is applied 3 to 4 days later. It is normal thereafter every 6 months as normal maintenance of the floor, for a new layer of beeswax to be applied and subsequently polished.  For the regular, daily maintenance of the floor it is advisable to clean the surface by means of lukewarm suds of Marseilles’ soap and linseed oil (style CAROLIN).

If you require further help with specification or technical advice please call 01793 847 444.

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