Epoxy.com Product #449 Elastomeric Membrane Waterproofing and Reinforced Membrane Waterproofing

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Epoxy.com Logo - Epoxy, Polyurethane, Polysulfide, Polyester, MMA - Methyl Methacrylate and other Construction Resin Systems - Over 350 Products- Since 1980

Epoxy.com Product # 449

Elastomeric Membrane Waterproofing and
Reinforced Membrane Waterproofing


Epoxy.com Product #449 Membrane Waterproofing and Reinforced Membrane Waterproofing is a two-component, modified elastomeric material. After mixing and curing it forms a tough, flexible waterproof membrane.

Epoxy.com Product #449 Membrane is applied to horizontal surfaces of concrete, steel or wood to prevent penetration of moisture and other deleterious substances. Typical applications are between slab waterproofing above and below grade.

Epoxy.com Product #449 may be applied in one coat up to 30 mil thickness on vertical surfaces without sag.


Epoxy.com Product #449 when used with inorganic fiber reinforcement, provides a puncture and tear resistant shield to bridge construction joints and fine cracks.


Mixed Material:

Color: Black
Solids by weight 98 % min
Pot Life @ 75°F 2 (24°C) 30 minutes
VOC Content 0.3 lbs per gallon

Cured Materials:

Shore A Hardness ASTM D 2240-75 25 +/- 5
Tensile Strength ASTM D 412 150 psi
Elongation ASTM D 412 500%
Tensile Strength @ 0°F   200 psi
Water Vapor Permeability ASTM E 96 Method BW 0.8 perms


Combine equal amounts of Components A and B in clean container. Mix 2 - 3 minutes with low speed drill and an Epoxy.com Mixing Paddle. Apply immediately after mixing.


Prior to applying membrane, the surface to receive membrane must be dry, clean and sound, all construction joints and cracks that are sizable must be bridged with fiberglass reinforcing cloth.

To produce a membrane, apply by brush, roller, spray or squeegee. For best results, two coats are recommended.

If reinforced cloth is used, it shall be embedded in the first coat of membrane while it still in a liquid state. A grooved aluminum or plastic roller can be used for this purpose. After the first coat of membrane and reinforcement has become tack-free, a second coat of membrane shall be applied.


On smooth concrete 80 sq. ft./G without Reinforcement


Epoxy.com Product #449 has an odor. If used indoors where such odor might be objectionable, it is recommended that the material is tested before use to determine the appropriateness of its use. Material temperature at time of mixing must be a minimum of 60°F (16°C), and surfaces to receive material must be a minimum of 40°F (4°C).

Once the container has been opened, the entire contents should be used as resealing may cause moisture, contamination and skinning. When used in confined areas, good ventilation must be provided. Damp surfaces could be detrimental to the performance of Epoxy.com Product #449.


Epoxy.com Product #449 is packaged in 2-gallon (7.57 liter) and 10- gallon (37.85 liter) units. Epoxy.com Product #449 Primer for metal surfaces is available in 1-quart (.946 liter), 1-gallon (3.785 liter), and 5-gallon containers (18.925 liters).


Epoxy.com Product #449 contain coal tar and organic isocyanates. These are considered irritants. Provide adequate ventilation. Avoid breathing vapors. Contact with skin or eyes must be avoided. Wear protective clothing, gloves and/or protective cream and goggles. Wash thoroughly with soap and water or a waterless skin cleaner prior to smoking or eating. In case of contact with eyes, flush immediately with water and contact a physician immediately.



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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 please contact:

A Division of Epoxy Systems, Inc
20774 W. Pennsylvania Ave.
Dunnellon, Florida 34431
Over 350 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

714-657-3826  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

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

We accept Mastercard, Visa and American express

Copyright © 1994-2009 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.  warrants its products (when properly stored) for the period of time as follows: Epoxies, Product #315, Product #315BC, and Product #316 one (1) year; Polyesters, Methyl Methacrylates (normal) two (2) months and Polyurethanes Four (4) months;  Power Tools and Equipment 90 days; Vinyl Esters, High Molecular Weight  Methacrylates (HMMA) and all other resins (not specifically mentioned above) 30 days; hand tools (non-power tools) 30 days.   Epoxy.com 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 Epoxy.com. If any product fails to meet this warranty, the liability of Epoxy.com will be limited to replacement of any non-conforming material if notice of such non-conformity is given to Epoxy.com within the warranty period for the material (as indicated above), or within 1 year of the delivery of materials (whichever is sooner). Epoxy.com may in its discretion refund the price received by Epoxy.com in lieu of replacing the material. No customer, distributor, or representative of Epoxy.com 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 Epoxy.com. In order to obtain replacement or refund the customer must provide written notice containing full details of the non-conformity. Epoxy.com 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. Epoxy.com 'S OBLIGATION SHALL NOT EXTEND BEYOND THE OBLIGATIONS EXPRESSLY UNDERTAKEN ABOVE AND Epoxy.com  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 Epoxy.com a division of Epoxy Systems, Inc. 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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