HM 12 / Historical plaster

• Especially suitable for buildings built in the Baltic States before the 18th century.
• For restoration of masonry and plaster of historical buildings
• Lime-cement plaster mortar for renovation works
• For weak and porous foundations
• High water vapor permeability
• Reinforced with polypropylene fibre
• Cement content does not exceed 4%

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 HM 12 is a material with a loose consistency
• 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 20 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 refers to a temperature of +20°C and 50% relative air 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 processing the mortar
• Hardened mortar can only be removed mechanically
• Contains cement, 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 silo

Tehnical data