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Epoxy.com Product #417PW

Reservoir Grade Industrial Membrane Waterproofing System


This Product is No Longer Available

This Material requires a minimum product purchase. Please see our Products That Require a Minimum Order Page, or contact Epoxy.com for more information.

A liquid applied, single-component, moisture-cured polyurethane coating, designed to form a tough rubber membrane impervious to moisture. A two-component version of Epoxy.com  Product #417PW Reservoir Grade is available, with a non-toxic catalyst, to reduce the tack free time of the membrane.


Composition: Polyurethane elastomer.

Basic Uses: Once cured, Epoxy.com  PRODUCT #417PW RESERVOIR GRADE allows expansion and contraction over a broad temperature range and maintains flexibility and waterproofing properties under continuous exposure to water. Epoxy.com  PRODUCT #417PW RESERVOIR GRADE has a thixotropic consistency and may be used on vertical, as well as horizontal, surfaces. Epoxy.com  PRODUCT #417PW RESERVOIR GRADE remains flexible from -75deg.F(-60C) to 175 deg. F (79C).


bulletMonolithic Waterproofing
bulletSuitable as a Potable Water Lining (in tanks 5,000,000 gallons or larger)
bulletU.V. Stability
bulletChemical Resistance
bulletCorrosion & Abrasion Resistance

Monolithic Waterproofing: Once cured, #417PW allows expansion and contraction over a variety of substrates, including concrete, metal, and wood.

U.V. Stability: #417PW resists exposure to U.V. sun rays and, therefore, is appropriate for exterior applications. Some chalking may occur.

Chemical Resistance: #417PW displays resistance to some liquid chemicals. Specific testing is recommended prior to any installation. Chlorine and other water purification systems are not acceptable. Contact manufacturer for assistance.

Potable Water Lining: PRODUCT #417PW has been designed for use in lining concrete-based above and below grade reservoirs or storage tanks. When #417PW is correctly installed and firmly bonded to the substrate, water cannot flow underneath the lining as is the tendency with sheet lining materials.

Limitations: Containers that have been opened must be used within one or two days since Epoxy.com  PRODUCT #417PW is a moisture-reactive material. All surfaces must be dry and completely free of foreign matter. This coating will begin to cure when exposed to the humidity in the air.

Shelf Life: 12 months at 77 deg. F. (25C) in tightly sealed containers.


A. Epoxy.com  PRODUCT #417PW RESERVOIR GRADE is a single-component compound that may be used directly from the container with no mixing required.

B. No catalysts are necessary, as #417PW is a moisture-cured compound.

C. Epoxy.com  Product #417PW Reservoir Grade Two-Component version, with the non-toxic catalyst, will reduce the tack free time of the coating, thereby, minimizing the likelihood of airborne contaminants or dust from becoming imbedded into the material.

D. Applied cold by spray methods, brush, roller, squeegees or trowel.

E. May be applied over concrete, stone, brick, cement blocks, wood, metal, and most other surfaces.

Concrete substrates require priming with Epoxy.com  Product #888 Primer. Some substrates may also require priming.

F. Epoxy.com  PRODUCT #417PW cuts cost of application by eliminating mixing, splicing, sealing tapes, adhesives and other labor consuming methods required when installing other membrane lining systems.

G. The superior flexibility and elongation properties of #417PW allows expansion and contraction with the substrate, and when installed properly, without cracking or becoming brittle.

H. Epoxy.com  PRODUCT #417PW meets standards for use with potable water and does not contain any potentially hazardous coal tar.

Color: Black and White

Standards: A.S.T.M. C836. Conforms to British Standards B.S. 6920 for use in contact with water intended for human consumption. #417PW.


Epoxy.com  PRODUCT #417PW RESERVOIR GRADE is best applied by airless spray. However, if the project does not lend itself to spraying, it may also be applied by roller, brush or squeegee.

All cracks over 1/16" in width must be filled and covered with Epoxy.com  PRODUCT #908/909 RESERVOIR GRADE CAULKING. This product may be applied by caulking gun and spatula. There is no need to wait for this product to cure before applying Epoxy.com  Product #417PW Reservoir Grade since both materials are completely compatible.

A dry film thickness of 60 mils is recommended over concrete and block surfaces. Extremely porous substrates should be filled prior to coating or receive additional ELASTO-DECK B.T. RESERVOIR GRADE.

Epoxy.com  PRODUCT #417PW RESERVOIR GRADE may be applied by airless spray, roller, brush or squeegee. The first coat of Product #417PWmust be applied at a rate of 40 to 45 square feet per gallon or 30 mils. After a 24 hour cure, apply a second coat of Product #417PWat the same rate of 40 to 45 square feet per gallon to achieve a total dry film thickness of 60 mils. If required, to obtain 90 DFT, repeat after 24 hour cure.

Epoxy.com  Product #888 Primer must be utilized on concrete substrates at a rate of 300 sq.ft. (27.81 m/2) per gallon.


If Epoxy.com  PRODUCT #417PW RESERVOIR GRADE is damaged, it can be repaired by cleaning the surface and recoating with Epoxy.com  PRODUCT #417PW RESERVOIR GRADE.


All products proven to be defective in manufacture will be replaced at no charge. Since the use of these products is beyond our control we cannot assume any risk or liability for results obtained, nor can we accept damages in excess of the purchase price of these products. satisfactory results depend not only upon quality products but also upon factors beyond our control; Methods of application and site conditions are examples of such factors and can affect product performance. It is the users responsibility to satisfy himself, by his own information and tests, to determine suitability of the product for his own intended use; User assumes all risks and liability resulting from this use of the product. The substrate must be sound structurally and otherwise. Structural or substrate failures or imperfections resulting in damage to a failure of the coating are not covered by this warranty.





Viscosity (poise @ 77F)

Brookfield Viscometer

60+/- 10 poise

Weight per gallon (pounds)


9.80 +/- 0.5

Percent solids content (%)

ASTM D-2369


by weight



by volume



Tensile Strength (psi)

ASTM D-412

600 +/- 50 psi

Percent Elongation (%)

ASTM D-412

300 +/- 50%

Tear Strength (pli)

ASTM D-624

100 +/- 15 pli

Hardness (Shore A)

ASTM D-2240

50 +/- 5

Adhesion to Peel (pli) (concrete)

ASTM D-903

50 pli

Moisture Vapor Transmission


2.1 grains (grains per sq.ft. hr.)

Water Absorption

ASTM D-471

1.2% (% wt. gain)


Proper mixing and installation is critical to the optimal success of all product.  See Installation Tips, Techdata, & MSDS for more details on our products.  Be sure to contact us with any questions and/or concerns that you have.

For more information on Epoxy.com Products please contact:

A Division of Epoxy Systems, Inc
20774 W. Pennsylvania Ave.
Dunnellon, Florida 34431
Over 300 products,
Since 1980
Florida & Vermont

Office Hours: 9AM-4PM Eastern Time (6AM-1PM Pacific Time).
Closed 12Noon-1PM Eastern Time for Lunch.

321-206-1833   Customer Service - Ordering and Order Status
                          Katey Fontaine, VP - Customer Service Director

 352-533-2167  Technical Support
                         Norm Lambert, President - Technical Support Director 
352-489-1666  Accounting and Administration
                         Debby Lambert, CEO, and CFO

352-489-1625   Fax line to all Departments

Website:  www.epoxy.com

24 hour Hazmat Emergency Telephone Response Service -1-800-633-8253

We accept MasterCard, Visa, American Express, Discover, Wire Transfers, and Cashiers Checks We accept MasterCard, Visa, American Express, Discover, or Wire Transfers.

Copyright 1994-2014 (providing online information about the right product for the right job for 20 years) EPOXY.COM a division of Epoxy Systems, Inc. - Florida and Vermont.  All rights reserved.

Unless other wise agreed upon in writing, buyer is responsible for the cost of shipping.

This information is presented in good faith to assist in determining whether this product is suitable for application. No warranty or representation, however, is intended or made, nor is protection from any law or patent to be inferred, and all patent rights reserved.

Epoxy.com a division of Epoxy Systems, Inc.  (hereinafter known as "Supplier" warrants its products (when properly stored) for the period of time as follows: Epoxy one (1) year; Polyesters, Methyl Methacrylate  and Polyurethanes Six (6) months.  Supplier warrants that its products will be free of manufacturing defects and will be in conformity with published specifications when handled, stored, mixed and applied in accordance with recommendations of Supplier. If any product fails to meet this warranty, the liability of Supplier will be limited to replacement of any non-conforming material if notice of such non-conformity is given to Supplier within the warranty period for the material (as indicated above), or within 1 year of the delivery of materials (whichever is sooner). Supplier may in its discretion refund the price received by Supplier in lieu of replacing the material. No customer, distributor, or representative of Supplier is authorized to change or modify the published specifications of this warranty in any way. No one is authorized to make oral warranties on behalf of Supplier. In order to obtain replacement or refund the customer must provide written notice containing full details of the non-conformity. Supplier reserves the right to inspect the non-conforming material prior to replacement. EXCEPT FOR THE EXPRESSED WARRANTY STATED ABOVE, THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE. SUPPLIER'S OBLIGATION SHALL NOT EXTEND BEYOND THE OBLIGATIONS EXPRESSLY UNDERTAKEN ABOVE AND SUPPLIER SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO THE PURCHASER OR ANY THIRD PARTY FOR ANY LOSS, COST, EXPENSE, DAMAGE OR LIABILITY, WHETHER DIRECT OR INDIRECT, OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. All quotes and sales subject to availability.

Many of our products are made on an individual order basis.   Unless authorized in writing by us in writing before the material is made, there are no returns on items purchased from us, once the order has been processed, and the material made. In the event of authorized returns a restocking charge will be charged in the amount of 30% of the value of the material returned or $150 whichever is greater.  No returns on non-list priced items.  All Returns are for merchandise (store) credit only, no cash or credit card credits.  In the event of a return, buyer is responsible for the cost of shipping and handling in both directions.


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