Mapei Adesilex PG1 Rapido


    Two-component, ultra rapid-setting thixotropic epoxy adhesive for repairs, bonding and structural strengthening of concrete, reinforced concrete, natural stone, mortar and brickwork structures.

    • Structural strengthening of beams and pillars by bonding steel plates (béton-plaqué technique) or composite material (such as Carboplate) to concretev
    • Rigid structural bonding of pre-cast concrete elements
    • Sealing injectors and surface cracks before injecting Epojet with a low pressure pump
    • Sealing cracks and repairing the corners of joints in industrial floors for vehicular use
    • Bonding fibre-reinforced cement plates and tubes
    • Bonding hooks used to carry out pull-off tests
    • Waterproofing large joints by bonding TPE membranes (such as Mapeband TPE) to concrete
    • For professional use only

    £156.29(ex. VAT)
    £187.55 (inc. VAT)
    Please choose your colour
    Available for Delivery (See Delivery Options Below)


    Available in 6kg kits:

    • 4.5kg drums (comp. A)
    • 1.5kg drums (comp. B)

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    Features & Benefits

    • Adesilex PG1 Rapido must not be used to seal flexible joints, or joints subject to movement (use products from Mapesil or Mapeflex ranges)
    • Adesilex PG1 Rapido must not be used for construction joints between hardened and new concrete (use Eporip)
    • Do not use Adesilex PG1 Rapido on dirty or crumbly surfaces
    • Adesilex PG1 Rapido must not be used for bonding or grouting anti-acid ceramic tiles (use Kerapoxy)
    • Adesilex PG1 Rapido must not be used to even out concrete surfaces before bonding carbon-fibre fabric (such as MapeWrap C UNI-AX, and MapeWrap C QUADRI-AX). Use MapeWrap 11 or MapeWrap 12

    Technical Characteristics

    Adesilex PG1 Rapido is a two-component product, made from epoxy resin, selected fine-grained, aggregates and special additives, according to a formula developed in MAPEI’s own Research & Development laboratories.

    After mixing (component A) of Adesilex PG1 Rapido with its catalyst (component B), a thixotropic paste is formed which is easy to apply, even on vertical surfaces, at a thickness of up to 1 cm in a single layer. After mixing, Adesilex PG1 Rapido hardens without shrinking in 1 hour (at +23°C) by chemical cure, forming a composite material with excellent bond strength and high mechanical strength.

    Adesilex PG1 Rapido can be applied even on very damp surfaces as long as there is no standing water. Adesilex PG1 Rapido is particularly suitable for application at temperatures between +5°C and +23°C.

    Adesilex PG1 Rapido meets the requirements designed by EN 1504-9 (“Products and systems for the protection and repair of concrete structures - Definitions, requirements, quality control and evaluation of conformity - General principles for the use of products”) and the minimum requirements claimed by EN 1504-4 (“Structural bonding”).


    Preparation of the substrate

    All surfaces must be prepared very carefully to guarantee that Adesilex PG1 Rapido bonds well to the substrate.

    Concrete, natural stone and brickwork substrates must be clean, solid and dry.

    Sandblasting the surface of the substrate is particularly recommended, to remove loose and flaky parts, efflorescence, cement laitance and all traces of stripping oil.

    Remove dust from the substrate with compressed air.

    In the case of metal surfaces, sandblast down to bare metal to remove all traces of rust, paint and oil (SA 2½).

    Cure freshly-cast concrete for at least 4 weeks before applying Adesilex PG1 Rapido, to avoid the formation of stresses induced by hygrometric shrinkage of the cementitious conglomerate at the interface with the bonded material.

    Do not apply Adesilex PG1 Rapido if the temperature is lower than +5°C.


    Preparation of the product

    The two components which make up Adesilex PG1 Rapido must be blended together. Pour component B (white) into component A (grey) and blend together with a low-speed drill with a mixing attachment until thoroughly blended (a uniform grey colour). The contents of Adesilex PG1 Rapido are pre-dosed. Do not use partial quantities of the components to avoid making dosage errors when mixing, otherwise the product may not harden completely. However, if partial quantities are required, use precision electronic scales to weigh out the components. The mixing ratio is:

    • 3 parts by weight of component A
    • 1 part by weight of component B


    Application of the product

    Adesilex PG1 Rapido may be applied on concrete, brickwork and metal using a flat trowel.

    To obtain a good bond, we recommend spreading the adhesive on both surfaces and to make sure it penetrates well into the areas with an irregular surface or shape.

    After spreading, press the two parts firmly together until the adhesive has completely hardened. A layer of approximately 1 to 2 mm is required to obtain a good bond. Because of its thixotropic nature, Adesilex PG1 Rapido may also be applied on vertical surfaces and ceilings without running or dripping.

    The surrounding temperature has an effect on the time required for hardening: at +23°C, Adesilex PG1 Rapido remains workable for approximately 10 minutes at +23°C. The hardening process starts after this period.

    Adesilex PG1 Rapido must be applied within this time. Therefore, organise work schedules so that the application process may be completed within the period mentioned above.

    Precautions To Be Taken Before Preparation And Application

    • No special precautions need to be taken if the temperature is between +10°C and +30°C.
    • In hot weather, do not expose the product to direct sunlight, and apply the adhesive during the cooler parts of the day, so that it does not harden too quickly and make application more difficult.
    • In cold weather, if the product is to be applied outside and the temperature is lower than +10°C, heat the substrate for at least 24 hours before applying the adhesive and install suitable insulating systems, to avoid the risk of freezing. Thermal insulation must be used for at least 24 hours after application. Store the product in a warm place before use.


    Adesilex PG1 Rapido bonds extremely well, including to metal, so tools must be cleaned using solvents (such as ethanol, toluene, etc.) before it hardens.


    1.65-1.75 kg/m² per mm of thickness.

    Technical Data

    Product Details

    Data sheet

    For Use By
    Professional Use
    For Use On
    For Use On
    Application Method
    Single, Two or Three Pack
    Pack Size
    1.65-1.75 kg/m² per mm of thickness
    Max. Application Temperature
    Min. Application Temperature
    1.72kg/l (A)
    1.50kg/l (B)
    1.70 (Mixed)
    900 (rotor F - 5 revs) (A)
    600 (rotor D - 2.5 revs) (B)
    800 (rotor F - 5 revs) (Mixed)
    Working Time
    At 10°C: 20 minutes
    at 23°C: 15 minutes
    Suitable For Use On
    Suitable For Use On
    Suitable For Use On
    Application Method
    Application Method
    Application Method
    Rapid Setting
    Product Type
    Product Range
    Setting Time
    At 10°C: 4 hours
    at 23°C: 1 hour
    4 days
    Colour Family

    Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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    Mapei Adesilex PG1 Rapido is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

    Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

    Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

    All delivery costs below are excluding VAT