HML 4 / Historical plaster
- Reinforced with polypropylene fibre
- Maximum fraction 4mm
- Does not contain cement
- For new and renovated buildings
- Suitable for restoration and repair of loose and porous plasters
- Suitable for use on old lime plasters
- High water vapor permeability
- Excellent resistance to temperature fluctuations
- Excellent adhesion to the surface
- Ecologically clean
- Easy to process
Processing
- The surface to be renovated must be dry, cleaned of dirt, grease, lichen, paint
- Alkyd-based coatings must be mechanically separated from the entire surface
- Gaps and brickwork seams must be carefully cleaned of atmospheric dirt
- Loose parts should be separated to the hard layer of the surface
- Cracked and loose materials are recommended to be separated mechanically or with a high-pressure washer
- The layer of old plaster damaged by salts should be cleaned 1m above the upper line of salinization
- Treat the old plaster with SAKRET TGW primer
- SAKRET HML4 is a loose consistency material
- The mortar can be prepared with a mixer, a concrete mixer or the mortar preparation and development technique offered by SAKRET SERVISS
- The mortar is stirred for 3 - 5 minutes until it acquires a homogeneous consistency
- Layer thickness: from 5 to 30 mm (thickness of one layer 5-12 mm)
- Lime, cement or additives improving the properties of the concrete composition must not be added to the dry mixture
- Dirty equipment and bags stored in inappropriate conditions or previously opened should not be used for plaster preparation
- The technical data refer to a temperature of +20°C and 50% relative humidity. Lower temperature increases, higher - decreases the specified values
- During the hardening phase of the mortar, protect from the sun, drafts and excessively high temperatures (>30°C)
- Protect fresh adhesive from rain and too rapid drying
- When the mortar has started to bind, no more water can be added!
- Wash containers and tools with water immediately after making the mortar
- Hardened mortar can only be removed mechanically
- Contains lime, reacts alkaline
- Protect skin and eyes, follow technical instructions. If the mortar gets into the eyes, rinse with a large amount of water, if necessary, consult a doctor
- Protect the packaging from weather conditions, store on wooden pallets, in a cool and dry place, cover torn packaging immediately
Packing
- 25 kg / paper bags / 48 bags on a pallet
- 1,000 kg / Big-Bag packaging / pre-ordered
- 10,000 kg - 20,000 kg / mobile transport silos
Tehnical data
Air content in fresh mortar | Fire safety class | Storage time | Cement content in the dry mix | Volume of ready mortar (25 kg) | Strength class | Consumption | Grain size | Achieving full hardness | Drying time |
---|---|---|---|---|---|---|---|---|---|
14% | Euro class A1 (non-flammable) | 12 months | 0% | ~ 18 l | CS I | ~13 kg/m² (if the thickness of the layer is 10mm) | ≤4mm | After 28 days | 24 h |