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• Features & Benefits
• Where To Use
• Technical Characteristics
• Recommendations
• Application
• Storage and Safety Instructions

Features & Benefits

• Mapeproof One Coat is a two-component epoxy product that cures by mixing the two-components before applying to the prepared and surface dry sub floor
• Should be applied ensuring that it is well worked in to the substrate so that complete coverage is achieved
• When applying to porous surfaces it is essential that the finished product is free from any pin holing
• If applying Mapeproof One Coat to a power floated concrete slab, it must be mechanically prepared by shot blasting or diamond grinding to remove the surface and expose the pores to ensure the product is allowed to penetrate the surface of the sub floor

Application examples:

• Apply over mechanically prepared power floated concrete sub floors that incorporate an effective structural dpm, to control residual or constructional moisture
• Apply over sand/cement screeds that are laid over an effective moisture barrier to control residual or constructional moisture
• Apply over Calcium Sulphate/Anhydrite screeds laid over an effective moisture barrier to control residual or constructional moisture up to 90% RH

Where To Use

• For use on cementitious sub floors and Calcium Sulphate/Anhydrite based screeds with residual, static or construction moisture levels of above 75% (BS8203) and below 97% (Cementitious) and 90% (Calcium Sulphate/Anhydrite) R.H. on sub floors with an effective structural damp proof membrane prior to the installation of resilient floor coverings for resilient, textile and wood flooring finishes
• Can be used with underfloor heating systems (cementitious substrates only) providing the system has been fully commissioned as per BS8203 2009, Section 3, 3.11 Protection against heat, and BS 8204 Part 1 2003, Section 6.4.6. heated levelling screeds
• Not recommended for heated sub floors where wood floor coverings are to be installed

Technical Characteristics

• Mapeproof One Coat is a two-component epoxy product that cures by mixing the two-components before applying to the prepared and surface dry sub floor
• Should be applied ensuring that it is well worked in to the substrate so that complete coverage is achieved
• When applying to porous surfaces it is essential that the finished product is free from any pin holing
• If applying Mapeproof One Coat to a power floated concrete slab, it must be mechanically prepared by shot blasting or diamond grinding to remove the surface and expose the pores to ensure the product is allowed to penetrate the surface of the sub floor

Recommendations

• Do not use below solid wood flooring
• Do not dilute Mapeproof One Coat with water or solvent
• Do not apply Mapeproof One Coat on wet surfaces or in presence of rising damp
• Do not cover partly used tins of Mapeproof One Coat after mixing

Application

Preparation of the substrate:

• The sub floor must be clean, sound, surface dry and free from laitance, oil, water, wax, dust, curing agents, and any form of contamination
• New screeds should be allowed to cure for a period of more than 28 days prior to being tested as per BS8203 to establish the residual moisture content, rapid drying screeds must be cured according to the manufacturer’s instructions for each particular product

Application of the product:

• Mapeproof One Coat Part A and Part B may have soft sedimentation in the bottom and are easily redispersible by mixing
• Mix Part A and Part B separately to make the products homogeneous before decanting Part B in to Part A, ensuring that all of Part B is introduced to the Part A
• Mix the 2 components completely and accurately for 1-3 minutes with a slow-speed paddle mixer until a uniform mix is obtained, taking care not to over mix and overheat the 2 components
• Where cementitious substrate is profiled or uneven, it can be pre-smoothed with an appropriate product
• Calcium Sulphate/Anhydrite screeds must not be pre smoothed prior to application
• Cracks and surface crazing must be opened, cleaned and then repaired with Mapei Eporip or Eporip Turbo
• Apply Mapeproof One Coat with an A2 notched trowel and roll at right angles with a short pile paint roller
• For all Mapei water-mixed levelling compounds, prime the cured Mapeproof One Coat with Eco Prim T Plus or Eco Prim Grip Plus before applying the levelling compound

Application on Calcium Sulphate based screeds:

• For calcium sulphate/anhydrite screeds that are measured between 75% - 90% RH by the flooring contractor, Mapeproof One Coat may be used if:
  • The screed manufacturer agrees that their screed can receive an epoxy DPM
  • The sub-floor contains an effective damp proof membrane, and that any moisture remaining is from the construction process and not from rising moisture from the ground
  • The screed has been down for >28 days and has a surface tensile strength of at least 1.0 N/mm2
  • The moisture content measured is <90% RH
  • There is no underfloor heating in place
  • No timber flooring is to be bonded to it

Caution: Epoxy products can become very hot in the bucket after mixing. Therefore mix only in metal containers, and after mixing apply immediately to the floor. After mixing and applying move the containers outdoors to complete the reaction

Cleaning:

• Mapeproof One-Coat can be removed from clothing and tools while still fresh using ethyl alcohol

Storage and Safety Instructions

Storage:

• 12 months in its original, well sealed container stored under normal conditions
• Protect from frost

Safety Instructions:

• Instructions for the safe use of the product can be found on the latest version of the Safety Data Sheet (see 'Data Sheets' section above)
• When the product reacts it generates a low amount of heat
• After mixing components A and B, we recommend applying the product as soon as possible and never leaving the container unattended until it is completely empty