OPTEC® EC-912

Efflorescence Control Admixture

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Product Description

OPTEC® EC-912 is an innovative admixture specifically formulated to enhance the overall appearance of architectural and hardscape concrete masonry units.
OPTEC EC-912, through its novel chemistry, improves color vibrancy and controls both primary and secondary efflorescence. OPTEC EC-912 provides a light swipe on the surface of the unit.

Product Uses

OPTEC EC-912 may be used in architectural block, pavers, segmental retaining wall units and other low slump concrete products where improved aesthetics are desired. OPTEC EC-912 is designed to reduce both primary and secondary efflorescence, while maintaining unit physical properties.

Product Advantages

  • Lowers water absorption
  • Controls primary and secondary efflorescence
  • Optimized for dosage efficiency
  • Improves cement and pigment dispersion

Product Function

OPTEC EC-912 improves the dispersion of the cement throughout the mix. Through this dispersion action, cement and consequently pigment reductions are possible. OPTEC EC-912 improves the plasticity of the mix for improved machinability and reduced cycle times.

Application Information

OPTEC EC 912 is used at a dose rate of 150-300 ml /100kg total cementitious material. The addition rate is dependant upon specific set of materials and the desired end properties.

Mixing Procedure

OPTEC EC-912 is compatible with most concrete admixtures. However, when multiple admixtures are used they must be added separately to the concrete.
OPTEC EC-912 is typically added separately to the mix either on prewetted aggregates or anytime after the cement has been “wetted out” and it should be mixed for a minimum of one minute, but preferably two minutes. Never add OPTEC EC-912 to dry cement. Variables such as cementitious content, aggregate gradations, processing equipment and curing conditions may have an impact on the effectiveness of OPTEC EC-912. Testing with local materials and production equipment is necessary to determine the end results.

Packaging and Handling

OPTEC EC-912 is available in drums and returnable totes

Dispensing Equipment

OPTEC EC 912 can be dispensed using conventional GCP pumping systems. For further information , contact your local GCP representative

Health and Safety

All precautions defined on the SDS (Safety Data Sheet) must be followed.

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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.

OPTEC 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.

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GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
GCP Australia Pty. Ltd., 14 Colebard Street West, Archerfield, Brisbane, Queensland 4108, Australia
This document is only current as of the last updated date stated below and is valid only for use in Australia. 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.com.au. 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: 2024-08-16

https://gcpat.com.au/en-gb/solutions/products/opteva-quality-improvers/optec-ec-912