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• Features & Benefits
• Application
• Limitations

Features & Benefits

• Suitable for:
  • Key coat for hydraulic coatings, screed and low absorption substrates
  • Cement-based coatings
  • To control suction on high absorption substrates such as lightweight aircrete blocks
  • Waterproof coatings for tanking, reservoirs, holding tanks and swimming pools
  • Bonding and waterproofing of render and plaster coatings
  • Bonding cement screeds without the need for existing surface preparation
  • Enhances screed for laying tiles
  • Coating, re-profiling or re-shaping mortar for patching areas such as damaged corners of concrete
  • Bonding mortar for repairing concrete (bridging mortar for construction joints)
  • Mortar for fixing/bonding prefabricated elements
  • Pointing and filling mortar for voided masonry joints, chimney stacks or to form a mortar flashing
  • Repair of concrete floors
• Excellent adhesion of renders, mortars and concrete, even on smooth substrates
• Waterproofs renders and mortars and improves resistance to oils, grease, fuel and dilute acids
• Passivation of steel rebars
• Lowers the modulus of elasticity and improves the resistance of mortar to tension, abrasion and impacts
• Allows for the construction of structures intended to be in contact (even permanently) with water or sea water (using the appropriate cement)
• Limits shrinkage, crazing and chalking
• Solid content: 50%

Application

Substrate Preparation

• Substrates must be clean, sound, dust free and free of any material which may prevent adhesion
• Remove traces of oil, laitance, curing compounds, paint, etc.

Key Coat

Ready-to-Use Renders

• For general guidance add 0.5 litres of 751 Lankolatex to the mixing water volume for a 30kg bag of render or as advised for the specific coating
• On wet or wet patchy substrates or where different materials have been used it is advisable to apply a key coat made up by adding 0.5 litres of 751 Lankolatex to the mixing volume for a 30kg bag of render. Allow the key coat to fully dry a minimum of 48 hours before the application of the next coat. This suggestion will assist against the effect of 'block ghosting' and shade variation
• Allow to harden before applying the next coat

Traditional Coatings

• Mix one part cement with one or two parts sand
• Mix with the 751 Lankolatex as a diluted solution of 1:2 clean water, into a creamy consistency
• Apply a firm key coat on to the dampened substrate and leave with a combed or stippled finish
• Allow to harden before applying the base/body coat

Liquid Key Bonding Coats

Screed & Traditional Concrete

• Mix one part cement with one or two parts sand
• Mix with the 751 Lankolatex solution into a creamy consistency
• Apply with a brush or broom on to the dampened substrate
• Apply the concrete or screed on to this freshly applied liquid key coat

Ready-to-Use Mortars

• 751 Lankolatex is used as a diluted solution of 1:3 clean water
• 751 Lankolatex is used as a diluted solution of 2:3 clean water for creating a waterproof base coat

Passivation of Steel

• Mix the repair mortar 730 Lankorep Fin or 731 Lankorep Structure into a creamy consistency with pure 751 Lankolatex
• Apply on to steel that has been pre-prepared with a broom or paintbrush
• Apply the repair mortar on to the preparation whilst it is still fresh

Waterproofing, Improving Performance of Concretes & Mortars

• Use 751 Lankolatex solution instead of water.

Bonding & Waterproofing of Plasters

• 751 Lankolatex is used as a diluted solution made up of 1/3 751 Lankolatex and 2/3 clean water.

Limitations

• Shake well before use
• Store product in frost-free conditions
• If product is accidentally frozen, place at +20ºC and after several hours, shake well to ensure the products contents are evenly distributed and mixed
• Doses must conform with regulations in force for the relevant structures