Fresh Ideas for Making Better Water

Looking to improve your cost position? – see page 1

Achieve optimal system performance – see page 2

Innovative new FILMTEC™ products to solve your operational problems – see page 2

PLUS – Easy-to-use FILMTEC™ Product Performance Data Chart and Product Selection Guide – see pages 3 & 4

A publication about industrial and municipal RO water production using FILMTEC™ membranes

1

About FilmTecFilmTec Corporation is a subsidiary of The Dow Chemical Company, a leader in water separation technology since 1940. We make high-quality reverse osmosis and nanofiltration elements for a wide variety of industrial, municipal, commercial and home drinking water applications. Dow also produces DOWEX™ ion exchange resins, as well as a variety of specialty water- separation products. Dow customers are primarily original equipment manufacturers of water treatment systems, engineering companies that specialize in the design and installation of water treatment systems, water service companies that operate water treatment systems for industrial and other water end users, public and private water utilities and the military. Our customers serve a wide range of end users including power generation and semiconductor plants, chemical and process industries, municipalities, and other commercial and consumer customers.

Looking to Improve Your Cost Position? Don’t Be Fooled by Lower Element Prices

Element costs are only the beginning. The element’s active membrane area,

cleanability and energy requirements also can affect your cost position. You’ll get more for your money with FILMTEC™ elements – including the greatest active area of any membranes in the industry. That means higher output for the same amount of energy, which increases your profitability. And our durable membrane and thicker feed spacers allow for more effective and less frequent cleanings, lowering your labor and maintenance costs and extending element life. Many FILMTEC elements now include our new element coupling technology, iLEC™ interlocking endcaps, which can boost your RO system performance and reduce your maintenance costs even more.

Depending on

the FILMTEC element you choose, you can achieve

significant reduction in your operating costs through lower energy usage and lower maintenance and element replacement costs. You also can lower your capital costs with high-active-area and low-energy elements, which enable more compact and lower pressure systems.

Look to FilmTec innovation to help you produce the highest quality water at the lowest total cost.

www.filmtec.com/splashSplash

LOWER COSTS

OU

R G

LOB

AL

PR

ESEN

CE

You Should Know…Dow is a world leader in providing separations

products and solutions. With sales personnel,

technical service representatives and research

centers on five continents, we are equipped to

serve you globally.

Achieve Optimal System Performance – Consistently The only way to assure optimal system operation is to use consistent, reliable products that are designed and manufactured to help eliminate defects.

That’s what you get with FILMTEC™ products. FILMTEC membrane is produced in a highly controlled casting process that yields a uniform, unblemished sheet. This eliminates defects that would need patching. Patches can reduce active membrane area, increase fouling and come off during operation or cleaning. Our highly automated fabrication equipment enables FilmTec to maintain consistent control of key manufacturing steps

to assure uniform spacing of membrane leaves, uniform tension, and straight and narrow glue lines to maximize active membrane area without the use of thinner feed spacers.

In addition, proprietary technology allows us to deliver elements with more and shorter membrane leaves than our competitors. This results in more productive elements and less fouling due to more even flux distribution.

Purchase FILMTEC elements to achieve optimal system performance – consistently.

Innovative New Products to Solve Your Operational ProblemsThe industry’s requirements for more pure water keep getting more stringent. That’s why we’re always innovating to find solutions to your system needs.

Problem Solution

Need to lower your energy costs?

Need high rejection?

Need to produce more water or reduce capital costs?

Need to reduce the impact of fouling?

Need to use less energy and get more water? Need to reduce o-ring leaks?

Need to optimize your system?

Need technical support?

Try new FILMTEC™ SW30XLE-400i elements – the lowest energy seawater element available on the market.

Check out FILMTEC SW30HR LE-400i elements – the highest NaCl rejection of any seawater membrane on the market, and the highest boron rejection as well. Try FILMTEC BW30-440i elements – with the highest active area and rejection available in a brackish water element. Get more water from an existing system or reduce the size of a new system. Reduce your membrane cleanings with FILMTEC BW30-400/34i elements – the ultimate robust brackish water element. Try FILMTEC LE-440i elements – a low-energy and high-active-area brackish water element with excellent rejection. iLEC™ interlocking endcaps use cutting-edge technology to stay leak- and maintenance-free. Use ROSA system design software to model the performance of FILMTEC elements in actual design configurations. Ask about our DIRECTORSM Services – for technical field support.

www.filmtec.com/splash 2Splash

CONSISTENT PERFORMANCE

NEW PRODUCTS

Seaw

ate

rBra

ckis

h W

ate

rSy

stem

s

FILMTEC™ Brackish Water Elements – Performance Data

FILMTEC™ Brackish Water Product Selection Guide

3 www.filmtec.com/splashSplash

BRACKISH WATER

FILMTEC™ Seawater Elements – Performance Data

FILMTEC™ Seawater Product Selection Guide

You Should Know…Dow is leading the industry forward with our

involvement in the Membrane Consortium, which

is developing a new standard for large-diameter

elements. A standard element size will allow RO/NF

system end users to realize maximum economic benefits

through a competitive bidding process.

www.filmtec.com/splash 4Splash

SEAWATER

3 Ways to Save

New high-performance, high-active-area FILMTEC™ elements can help you save money:

1 Reduce CAPEX –

use a fewer number of high-active-area elements, as well as fewer vessels, piping and components, to reduce capital costs.

2 Reduce OPEX –

use low-energy and/or high-active-area elements to reduce flux or feed pressure, resulting in lower energy costs and lower fouling potential, leading to lower cleaning costs.

3 Avoid additional CAPEX and OPEX –

get more water out of your current system without additional capital investment or increased flux or feed pressure by installing high-active-area elements. New low-energy seawater elements also allow higher recovery or higher system output without increasing feed pressure.

The ROSA Reverse Osmosis System Analysis program can help you design the right system for your needs,

including multiple stage and multiple pass systems. Unlike any other design program available, ROSA takes a project approach, allowing you to analyze a portfolio of designs at one time, and gives you straightforward results that you can trust.

ROSA also offers the most comprehensive system training available, plus all these advantages:

• Easy to download

• Attractive and easy-to-read printouts

• High precision and accuracy

• Robust help for online troubleshooting

• System flux based on actual active area

• Additional downloading assistance from trained professionals

In addition, ROSA incorporates the newest FILMTEC™ seawater and brackish water elements, the highest quality RO and NF elements available.

And, to ensure the most complete and accurate information possible, ROSA includes an interactive library of technical data about FILMTEC elements.

Count on ROSA to provide you outstanding design support for your water system requirements. Visit www.filmtec.com/splash for more information.

5 www.filmtec.com/splashSplash

ROSAREDUCE OPEX, CAPEX

Has Never Been EasierWater System Design

Boost Performance of RO Systems with iLEC™ Interlocking Endcaps

iLEC

Now you can improve the performance of your RO systems with iLEC interlocking endcaps, an innovative new element coupling technology available on select FILMTEC™ brackish water and seawater elements.

Unlike sliding couplers, the decades-old connection method still used in most of today’s RO systems, iLEC endcaps create a direct, leak-tight connection between adjacent element permeate tubes, reducing the number of sealing surfaces to a single, axially compressed o-ring.

This patented design significantly reduces energy-consuming flow resistance, resulting in lower operating costs, and dramatically reduces potential for o-ring leakage.

Other benefits of iLEC interlocking endcaps include: • Fewer parts to wear out or require maintenance • Easier loading and unloading for membrane cleaning • Full compatibility with current connection methods and vessel designs • Elimination of o-ring abrasion • Use of lubricants unnecessary

iLEC interlocking endcaps – just another

example of how innovations from FilmTec

help you deliver the highest quality water

at the lowest total cost.

We’re committed to helping you get the most from

your FILMTEC™ product purchase, with unparalleled

service and support at all stages of the sales process:

• Before the sale: Our ROSA system analysis

software, Performance Data Charts and Product

Selection Guides will guide you through the

process of optimizing your water purification

system. Our technical sales staff will answer

any other questions and work with you to

make the most appropriate product selections.

• During the sale: Our water treatment experts

offer complete technical support at the system

design stage, as well as during installation, start-up

and maintenance. For technical bulletins on many

operational topics, including start-up and shutdown

procedures, inspection, sampling, system cleaning,

troubleshooting and chemical disposal, or to “Ask an Expert,”

visit our Web site.

• After the sale: Sales and technical service experts are available to answer your questions and

provide you with comprehensive technical literature, data packages and technical support.

Or visit www.filmtec.com – one of the most comprehensive Web sites in the industry.

Don’t forget about our DIRECTORSM Services, which can assist in troubleshooting and

understanding system operation phenomena.

www.filmtec.com/splash www.filmtec.com/splash 6Splash

Boost Performance of RO Systems with iLEC™ Interlocking Endcaps

You Should Know…Our new expanded manufacturing facility will come on line late 2005. Dow is

building on our commitment to our customers by investing in advanced production

processes, the most innovative membrane technology and expanded capacity to meet

your future needs.

Technical Support Every Step of the Way NO HASSLE. EASY ACCESS. Keep up to date on the

latest water purification

issues and products. Visit

www.filmtec.com/splash

and subscribe to

StreamLine, our bimonthly

electronic newsletter.

Stay “Current” – Subscribe to StreamLine Today!

You Should Know…Our advanced RO and NF membrane production technology and strict quality control

procedures deliver membrane sheet that does not require tape or glue patches that can

trap foulants, wear prematurely and lead to poor permeate quality.

TMTrademark of The Dow Chemical Company or its subsidiariesSMService Mark of The Dow Chemical Company

Published May 2005 Printed in U.S.A.

Form No. 609-02141-0505 BBI

For more information, contact us:

www.filmtec.com/splash

North America 1-800-447-4369

Latin America 55-11-5188 9222

Europe

+800 3 694 6367

Asia/Pacific800 7776 7776