Technical Data Sheet
RHOPLEX™ E-330
Acrylic Polymer
Introduction
RHOPLEX™ E-330 cement modifier is an acrylic polymer designed for modifying Portland cement
compositions. Cement mortars mixed with RHOPLEX™ E-330 cement modifier are hard, tough
and durable. Compared with unmodified mortars, the polymer-modified mortars have exceptional
flexural, adhesive and impact strengths – as well as excellent abrasion resistance. They are
especially useful for applications with thin sections, excessive vibration and heavy traffic.
Typical Physical Properties
These properties are typical but should not be considered specifications.
Solids content, %
47 ± 0.5
pH (as packed)
9.3-10.2
Viscosity, cPs
10-60
Density, lbs/gal 8.8
Freeze-thaw stability
5 cycles
Glass transition temperature (Tg), °C 13
Minimum film formation
10-12
temperature (MFFT), °C
Specific gravity
1.059
Performance
Advantages
Durability and Strength
Cement mortars modified with RHOPLEX™ E-330 are hard, tough and durable. Compared with
unmodified mortars, polymer-modified mortars have exceptional flexural, adhesive and impact
strengths, as well as excellent abrasion resistance. They are especially useful where thin sections
are desirable and where excessive vibration and heavy traffic are encountered.
Adhesion
RHOPLEX™ E-330 modified cement mortars have excellent adhesion to a variety of surfaces,
such as concrete, masonry, brick, wood and metals.
Resistance Properties
Cement mortars prepared with RHOPLEX™ E-330 are resistant to many industrial chemicals and
have excellent resistance to ultraviolet light and heat. They dry to a uniform color with no tendency
toward yellowing or discoloration.
Curing
For optimum physical properties, cement mortars modified with RHOPLEX™ E-330 should be
air-cured at ambient temperature and relative humidity. Unlike unmodified mortars, which require
laborious moist curing conditions for optimum strength properties, polymer-modified mortars
should not be cured under these conditions.
Storage
RHOPLEX™ E-330 emulsion is sediment-free and stable to a minimum of 5 cycles of freezing at
-15°C and thawing at 25°C. However, in cold weather or after prolonged storage, the emulsion
should be thoroughly stirred prior to use to ensure a completely homogeneous mixture.
Page 1 of 2
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
RHOPLEX™ E-330 / Dow Construction Chemicals
July 2010
Formulation
Guidelines
Contact your local Dow representative for suggested starting point formulations and related information.
Product Specifications
Appearance
Solids content, %
pH Brookfield viscosity at 25°C, mPa•s LV, spindle #1, 60 rpm
Milky white liquid, free of coagulated gum and visible impurities
46.50-47.50
9.30-10.20
C5-55 CPO
Product
Stewardship
Dow has a fundamental concern for all who make, distribute and use its products, and for the
environment in which we live. This concern is the basis for our product stewardship philosophy
by which we assess the safety, health and environmental information on our products and
then take appropriate steps to protect employee and public health and our environment. The
success of our product stewardship program rests with each and every individual involved with
Dow products – from the initial concept and research to manufacture, use, sale, disposal and
recycle of each product.
Customer Notice
Dow strongly encourages its customers to review both their manufacturing processes and
their applications of Dow products from the standpoint of human health and environmental
quality to ensure that Dow products are not used in ways for which they are not intended or
tested. Dow personnel are available to answer your questions and to provide reasonable
technical support. Dow product literature, including safety data sheets, should be consulted
prior to use of Dow products. Current safety data sheets are available from Dow.
Disclaimer
NOTICE: No freedom from infringement of any patent owned by Dow or others is to be
inferred. Because use conditions and applicable laws may differ from one location to another
and may change with time, the Customer is responsible for determining whether products and
the information in this document are appropriate for the Customer’s use and for ensuring that
the Customer’s workplace and disposal practices are in compliance with applicable laws and
other governmental enactments. The product shown in this literature may not be available for
sale and/or available in all geographies where Dow is represented. The claims made may not
have been approved for use in all countries. Dow assumes no obligation or liability for the
information in this document. References to “Dow” or the “Company” mean the Dow
legal entity selling the products to Customer unless otherwise expressly noted.
NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.
The Dow Chemical Company
www.dowconstructionchemicals.com
215-592-3000
Page 2 of 2
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
RHOPLEX™ E-330 / Dow Construction Chemicals
Form No. 832-00115-0710P&M
July 2010