SDA® Mineral Slurry Thinners

Mineral Slurry Thinners

Product Description 

The SDA ® range of slurry thinners is one of the proven product developments by GCP in the field of additives for cement raw materials and minerals. SDA products are specially formulated by GCP and are supplied as liquids, ready for use.

Product Advantages 

SDA can provide either a viscosity reduction at constant slurry solids content or an increase in slurry solids while maintaining a constant viscosity.

SDA provides significant cost savings by reducing the water content of the kiln feed by 5% to 10%. Clinker output of the kiln is typically increased by 3% to 6%. Where extensive slurry handling is involved, a reduction in pumping costs will be achieved.

Addition Rates 

The dosage rate of SDA products can vary from 0.005% to 0.4% by weight of slurry solids. The optimum dosage rate will depend on the fineness, chemistry and viscosity characteristics of each slurry.

Dosing Equipment 

SDA should be accurately dispensed through a calibrated dosing system. GCP can advise on suitable equipment for installation, covering manual, semi automatic and computerized systems.


SDA should be added as received into the slurry mix water.

Technical Service 

To assist you in obtaining optimum performance from your GCP Cement Additive, we offer advice and assistance by trained personnel, experienced in additive technology and the facilities of our fully equipped laboratories.

Safety Information 

SDA products are non-flamable. A SDS (Safety Data Sheet) is available on request.


SDA products can be supplied in 205 litre drums, 1000 litre bulk boxes and in bulk tankers.


The shelf life of SDA products is a minimum of 6 months in original containers. | North America Customer Service: 1 877-4AD-MIX1 (1 877-423-6491)

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.

SDA 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, Suite 450, Alpharetta, GA 30009, USA
GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6
This document is only current as of the last updated date stated below and is valid only for use in the United States. 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 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: 2022-05-06