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

Epoxy.com Product #21

Pumpable Epoxy Mortar/Concrete

Replace By Epoxy.com Product #22 Pourable and Pumpable Mortar


DESCRIPTION: Epoxy.com Product #21 Pumpable Epoxy Mortar is a moisture insensitive, two-component, 100% solids epoxy resin. This material is specifically designed for use in marine environments, but can be used in wet or dry strippable form applications. Product #21 can be pumped or poured into the void created between the existing structure and the Epoxy.com Corrosion Free Jacket. Dewatering is not required.

ADVANTAGES: Epoxy.com Product #21 Pumpable Epoxy Mortar will bond solidly to wet or dry surfaces made from fiberglass, concrete, steel, timber, or aluminum. Exceptional flow and long pot life for easy pumping through long pump lines. Product #21 has a convenient 2:1 mix ratio by volume, high physical strengths and high impact resistance.


1 day – 5,500 p.s.i (37.9 MPa)

3 days - 8,000 p.s.i (55.1 MPa)

7 days – 10,000 p.s.i 68.9 (MPa)


± 115 lbs. per cubic foot (1.85 Kilo per liter)

Flexural Strength (ASTM C293)

7 days – 3,500 p.s.i (24.1 MPa)

Tensile Strength (ASTM C 307)

7 days – 1,300 p.s.i (8.9 MPa)

Pot Life @ 70° F

1 hour (approximately)

Tensile Bond Strength

345 p.s.i (2.4 MPa)

Shrinkage ASTM C-827)

- 0.02%

Absorption (ASTM C413)


SURFACE PREPARATION: For best results, areas to receive the Product #21 Pumpable Mortar should be free of laitance, grease, oil or other contaminants that would inhibit bond. Sandblasting, water blasting, or wire brushing is recommended.

MIXING: Combine two (2) parts by volume of A Component with one (1) part by volume of B Component in the quantity desired and mix with a low speed drill (300 - 600 RPM) and Epoxy.com Mixing Paddle for three (3) minutes. Add 2-55 lb. Bags of the C Component. Mix until uniform. Scrape the sides and bottom to ensure thorough mixing. Pump or pour immediately after mixing. If the consistency of the mixed material is too thin, more C Component can be added with no loss of physical properties. If greater flow is required use less filler.

APPLICATION: Pump or pour Product #21 into wet or dry annular void between the Epoxy.com Inert Corrosion Free Jacket and the existing structure. Product #21 is easily pumped with a Moyno 2J4 Auger Grout Pump with a 2 inch hose and 50 ft. Camlock Reinforced Grout Hose. Less C Component can be used to increase the flowability when longer pump lengths are required.

YIELD: One unit consists of 2 gallons of A Component and one gallon of B Component, and 2 each 55 lb bags of C Component. This will yield approximately 2,000 cubic inches (32.77 Liters) of grout.

LIMITATIONS: Product #21 Pumpable Mortar should not be used in a mortar form when ambient temperature is below 40° F. Lower temperatures increase set time and reduce flowability. Friction from pumping can accelerate setting time.

CAUTION: WARNING! A Component contains epoxy resin. DANGER! B Component contains alkaline amines; strong sensitizer. May cause skin sensitization or other allergic responses. Avoid inhalation of vapor. Use good ventilation, particularly if material is heated or sprayed. Prevent all contact with skin or eyes. Wear protective clothing, goggles, gloves, and/or barrier creams. Keep container closed when not in use. Wash thoroughly after handling.

FIRST AID: In case of skin contact, immediately wash with soap and water. In case of eye contact, flush eyes with copious amounts of water for at least fifteen (15) minutes. Remove contaminated clothing and shoes. If irritation persists, seek medical attention. Wash contaminated clothing before reuse.



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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