Flame Retardant Structural Foam

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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 #431

Flame Retardant Structural Foam

This Material is a  Non-Stocking Material that is Made to Order / Minimum Quantity Required at least  50 gallons


Epoxy.com PRODUCT #431 is a two component, flame retardant foam especially manufactured to provide a rigid foam with physical properties similar to that of timber or cement grouts, at a convenient one to one ratio, A to B, light black in color. Product #431 will bond to wet, moist or dry surfaces, even to Plexiglas, with no shrinkage and ample pot life after mixing A & B components.



Non-burning and no red label


No solvent or toxicity


Low viscosity permits ease of pumping and penetration in porous construction materials, particularly timber, soil or pea gravel.


Product #431 foams in the presence of water or moisture, once A & B components are mixed together.


Product #431 foams in 2 to 2.5 minutes at 72oF (slower at a lower temperature), producing a water insoluble and chemical resistant polymer with outstanding penetration in timber, soil, gravel and porous construction materials, producing a very high strength with impact resistant properties.


Color A Component - Dark Red
  B Component - Brown
  Mixed - Light Brown
Viscosity Light Motor Oil
Foam Time @ 72oF (mixed) 2 to 2.5 minutes at 72oF
Compressive Strength
ASTM C-109 (modified)

2500 psi +/- 250 (The compressive strength of timber poles parallel to grain is 2300 psi. Compressive Strength perpendicular to grain is 475 psi.) Product #431 is 2500 psi +/- in all directions)

Tensile Strength ASTM C-190

670 psi

Flexural Strength ASTM C-293

1200 psi

Water Absorption



Fire Retardant

Volume Swell

2.5 + times

Chemical Resistance

Gasoline, oil & most alkaline liquids

Flash Point, ASTM D 93

400oF +

Termite Repeller



Cracked timber or timber eaten away by termites or other insects; hard to get to areas where insulation and/or strength are required.


Product #431 can be poured or pumped. For best results use a double barrel hand gun and static mixer (available from Epoxy.com). When used in soil stabilization, perforated pipes are driven into the ground or water jetting is used to place perforated pipe, steel or plastic.

Product #431 is used where light weight flame retardant foam with structural properties are required, be it timber telephone poles, insulation, pipe sleeves or as an adhesive.

CAUTION: Keep container closed. Use only in well ventilated area. Wear rubber gloves, safety glasses and protective clothing. Use an organic vapor cartridge respirator. Avoid breathing vapors. In case of contact with skin or eyes, wash with large amounts of water. Consult a physician.



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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 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

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

MasterCard, Visa, and American Express logo

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.


[Home] [Catalog of Products] [Where to Start] [[Bonding Systems] [Chip Floors] [Chemical Resistance]
[Coatings] [Conductive] [Applications] [Elastomeric Systems] [High Temperature]
[Industrial Floors] [Injection] [Joint Systems & Sealants] [Mortars / Grouts] [Novolac] [Polymer Systems]
[Primers and Sealers] [Misc.] [Seamless Flooring] [Waterproofing] [Dealers Wanted] [Installation Tips]
[Product Guide] [Wood Filler] [Who We Are] [Guide Specs]
[Tech Data Sheets in Acrobat Format ] [MSDS in Acrobat Format] [Online Ordering Authorization Form]

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