MORTAIR® EP75

Mortar Air-Entraining Agent

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Product Description

MORTAIR® EP75 is a liquid air-entraining agent for use in the production of air entrained mortar. It is normally used in conjunction with MORTARD® 79/5 Mortar Retarder (see separate data sheet).

MORTAIR® EP75 is specifically formulated to allow ease of production of ready-to-use mortars with air contents meets with the limits stated in BS 4721.

MORTAIR® EP75 yields a constant air content over a wide range of dosages. MORTAIR® EP75 gives an extremely stable air system and meets the requirements of BS 4887: Part 1.

Advantages

  • MORTAIR® EP75 produces a stable air system with minimum air loss throughout the life of the plastic mortar.
  • Production of ready-to-use mortars complying with BS 4721 is made easier because of the plateauing of air content and constant air content over a wide range of dosage.
  • Due to its dosage tolerance, the levels of entrained air when using MORTAIR® EP75 are less susceptible to variation in sand grading and silt content of the sand.
  • Mortar containing MORTAIR® EP75 has very good site acceptance because of its constant air content, reduced bleeding and predictable workability and life.

Typical Properties

MORTAIR® EP75  
Appearance dark brown liquid
Specific Gravity 1.05 at 20°C
Alkali Content 1.5% as Na2O
Sulphate Content 0.21% as SO3
Air Entrainment See “Additional Rates”
Chloride Content 0.2%
Freezing Point -3°C

    Compatibility with Cements

    MORTAIR EP75 can be used with all types of Portland Cement. For use with special cements we recommend that you consult GCP Applied Technologies.

    Compatibility with other Admixtures

    MORTAIR® EP75 should not be premixed under any circumstances with other admixtures. While some admixtures can be usefully combined within the same mix the performance of this product may well be affected by the presence of other chemicals and we recommend that GCP be contacted for advice in all such circumstances.

    Addition Rates

    Range: 200 ml–400 ml per 100 kg cement

    The addition rate of MORTAIR® EP75 is dependent on the characteristics of the mortar constituents and air entrainment required. Several factors which affect air entrainment are:

    • Type and efficiency of mixing equipment
    • Water content
    • Fine aggregate content and type
    • Cement/lime content and type
    • Temperature

    MORTAIR® EP75 is supplied ready for use. It should be added to mortar mixes during the mixing process, at the same time as the water or the aggregates and not directly onto cement.

    With good plant control, very consistent results can be obtained

    It is essential that preliminary plant tests are performed, so that the above criteria can be assessed, before dosage levels are finalised.

    For advice and assistance with your tests we would recommend that you consult GCP.

    Overdosing of MORTAIR® EP75 will result in a modest increase in air content and workability.

    Dispensing

    It is preferable that liquid admixtures for mortar should be introduced into the mixer by means of automatic dispensing equipment. Such equipment is available, and details will be supplied by GCP on request.

    Health and Safety

    For further information see MORTAIR® EP75 SDS (Safety Data Sheet) or consult GCP.

    Packaging

    MORTAIR® EP75 is supplied in 210 litre, non-returnable containers.

    Storage

    MORTAIR® EP75 should be stored in original containers or suitable closed tanks, preferably out of direct sunlight and protected from extremes of temperature.

    Storage Life in Manufacturer’s Drums:

    12 months from the date of manufacture

    Storage Life in Bulk Storage:

    12 months from the date of delivery

    Technical Service

    The Technical Service Department of GCP is available to assist you in the correct and best use of our products. These resources and advice are at your disposal entirely without obligation. Please contact:

    GCP

    Emirates Chemicals LLC
    Festival Tower, Suite 1701
    Dubai Festival City
    P.O. Box 5006
    Dubai, United Arab Emirates
    Tel: +971 4 2329901 
    Fax: +971 4 2329940
    Email: meinfo@grace.com

    gcpat.ae | United Arab Emirates customer service: +971 4 5139560

    We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

    MORTAIR is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.

    © Copyright 2018 GCP Applied Technologies Inc. All rights reserved.


    GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
    P. O. Box 5006, Office 2104, 21 Floor, The Exchange Tower, Opp. JW Marriott Marquis Hotel, Business Bay, Dubai – United Arab Emirates
    This document is only current as of the last updated date stated below and is valid only for use in the UAE. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.ae. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

    Last Updated: 2022-11-18

    https://gcpat.ae/en-gb/solutions/products/mortair-ep75