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• Features & Benefits
• Technical Characteristics
• Recommendations
• Application Procedure
• Consumption
• Cleaning
• Storage & Safety Instructions

Features & Benefits

• For professional use

Use Adesilex G20 for bonding:

• Multisport flooring on asphalt
• Recycled rubber shock-absorbent flooring on asphalt in playgrounds
• Resilient flooring for indoor sports flooring, also onto waterproofing fiberglass underlays such as Mapelay
• Homogeneous and heterogeneous PVC, sheets and tiles
• CV floor coverings
• LVT
• Semi-flexible quartz vinyl floor tiles (VTC)
• Textile floor coverings with all common backings (latex-primed, PVC and polyurethane foam, natural jute and ActionBac backed carpets etc.)
• Needlepunch woven flooring also in latex
• Flocked textile flooring
• Linoleum with all kind of backings
• Polyolefin-based and chlorine-free floor coverings
• PUR floor coverings.

Technical Characteristics

• Low viscosity, two-component adhesive made from an epoxy-polyurethane polymer, component A, and a special hardener, component B
• When the two components are mixed together, they form an even coloured paste which is easy to apply with a suitable notched trowel
• Adhesive ridges fletten so that they can’t shadow through the floor covering
• After setting (around 24 hours), which takes place by means of a chemical reaction without any shrinking, Adesilex G20 becomes though and resistant to moisture, water, heat and atmospheric agents, and adheres extremely well to almost all materials normally used in the building industry
• Initial setting: 9 hours
• Final setting: 10 hours
• Ready for use: 72 hours
• Peel adhesion at 90° (EN 1372) – after 14 days at +23°C (N/mm):
  • Rubber: > 3 (floor-covering failure)
  • PVC: > 3 (floor-covering failure)

Recommendations

• Install in recommended temperatures, normally between +10°C and +30°C, in order to maintain workability and setting times
• Do not install on substrates not protected from rising damp
• Do not install flooring on not completely set or wet concrete
• Do not install flooring on fresh asphalt (wait at least 20 days)
• Do not install flooring on bituminous surfaces which might bleed oils
• Do not use on curved surfaces or steps if it is not possible to hold the flooring in perfect adherence against the substrate until the adhesive has set
• When installing thin flooring where the ribs of adhesive may shadow through, or Adesilex G20 Fast
• For the installation of rubber athletic tracks, use Adesilex G19 or Adesilex G19 Fast

Application Procedure

Substrate Preparation

• Substrates must be dry, level, sound, mechanically strong, free of dust, loose particles, cracks, paints, wax, oil, rust, traces of gypsum or other products that can interfere with bonding
• The regulations of each country must be strictly followed
• The moisture content must be the one foreseen by the regulations of each country
• It is essential to make sure there is no rising damp present
• Un-bonded screeds laid over light-weight concrete or over insulation and screeds laid directly onto earth must be separated by a vapour barrier to prevent rising damp
• To repair cracks in the substrate, consolidate and waterproof screeds, form new fast-drying screeds and level uneven substrates, please refer to the relevant Mapei documentation
• External cement based surfaces may be levelled off with Mapei Planicrete mixed with cement and sand (with suitable particle size) or with Adesilex P4
• Use Adesilex G19, Adesilex G19 Fast, Adesilex G20 or Adesilex G20 Fast (eventually mixed with suitable quartz or crumbled rubber) for repairing or smoothing asphalt surfaces
• In these cases install the flooring with Adesilex G20 as soon as the smoothing layer is set enough to take light foot traffic

Acclimatisation

• Before starting the installation, make sure that the floor covering and substrate are acclimatised to the recommended temperatures and R.H.

Mixing the adhesive

• The two components of Adesilex G20 are supplied in pre-measured proportions:
  • component A: 9.4 parts by weight
  • component B: 0.6 parts by weight
• Blend the two components together with a mechanical mixer until an even paste is obtained
• Setting times and pot life depend on the ambient temperature (see below)
• Setting times are much longer if the temperature is lower than +10°C
• Note: the resin (component A)/catalyser (component B) ratio must be strictly adhered to. Any variation in dosage will compromise the setting of the product

Spreading the adhesive

• Only apply as much adhesive as can be covered within the open time (60 minutes) and with good transfer to the backing of the covering

Installing the flooring

• Follow the manufacturer’s instructions for laying technique
• Lay in covering with short waiting time into the still wet adhesive bed: the adhesive ridge has to be impressed
• Take care to avoid air pockets and carefully rub the floor covering down to ensure good adhesive transfer to the backing
• Avoid excessive stress at the seams
• After installing the floor covering, it is always necessary to carefully roll it down again or to firmly rub it down
• If the flooring is not perfectly flat, put weights (such as bags of sand or similar) on the uneven areas, and on the joints and roll ends until the Adesilex G20 has hardened (12-24 hours)
• Extra care must be taken when installing external flooring if there are high temperatures or high variations in temperature (install flooring during the cooler hours of the day)
• Flooring bonded with Adesilex G20 is ready for light foot traffic after around 12-24 hours, while the adhesive sets completely after around 72 hours at +23°C

The setting time of Adesilex G19 at different temperatures is the following:

Consumption

• Consumption varies according to the flatness of the substrate and the type of backing on the flooring material (and, therefore, the type of trowel used):
  • Trowel No. 1 or TKB A1/A2: 350-450 g/m²
  • Trowel No. 2 or TKB B1/B2: 450-550 g/m²

Cleaning

• Adesilex G20 may be removed from flooring, tools, clothing etc. with alcohol before it hardens
• Once hardened, it must be removed mechanically

Storage & Safety Instructions

• Remains stable for at least 24 months under normal environmental conditions in its original, sealed packaging
• For further and complete information about the safe use of our product please refer to the latest version of our Material Safety Data Sheet (see 'Data Sheets' section above)