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DECK-O-FOAM – Expansion Joint Filler

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DECK-O-FOAM expansion joint filler is a flexible, lightweight, non-staining, polyethylene, closed-cell expansion joint filler. It is a chemical-resistant, ultraviolet stable, non-absorbent, low density, economical, compressible foam that offers an extended service life in both interior and exterior applications.

DECK-O-FOAM is supplied with a convenient, pre-scored removable strip to provide a uniform sealing reservoir in the joint. It also serves as a sealant bond-breaker and provides an economical alternative as an expansion joint in all concrete paving projects. It is compatible with all currently available cold-applied sealants.

DECK-O-FOAM is ideal for use as an expansion, contraction, and/or isolation joint in swimming pool decks, curb and gutter work, floor slabs, pavement patch repair, sidewalks, driveways, plazas, parking decks, highways, and airport runways.

  • Pre-scored strip is easily removed.
  • Economical alternative to expansion joints.
  • Controls amount of sealant needed and acts as a bond-breaker.
  • Eliminates costly sawing and routing.
  • Flexible, lightweight and can be formed around curved objects.
  • Easy to install.
  • Can be used in interior or exterior applications.
May help contribute to LEED credits:
  • MR Credit 5.1: Regional Materials: 10% Extracted, Processed & Manufactured Regionally
  • MR Credit 5.2: Regional Materials: 20% Extracted, Processed & Manufactured Regionally


ASTM D 1622
2.0 lb./ft.³ (32.04 kg/m³)
10% Deflection
ASTM D 3575
10 psi (69 KPa) max.
80% Deflection
ASTM D 3575
125 psi (862.49 KPa) max.
Tensile Strength
ASTM D 3575
55 psi (379.50 KPa)
Water Absorption
ASTM D 3575
0.5% vol. max.
Temperature Stability
-40º F to 160 ºF (-40º C to 71º C)
** These physical properties are typical, but should not be used in specifying material due to differences that could result from variations in testing methods.

Attach DECK-O-FOAM securely to the existing concrete slab, coping or form with tape or mechanical fasteners prior to pouring the next slab. Make sure that DECK-O-FOAM is level with the desired slab surfaces before finishing. If specifications require the use of a cold-applied sealant, remove the pre-scored strip and apply the sealant following the manufacturer’s instructions.

* PACKAGING (Standard Size Rolls)
1/4″ x 3″ x 100′ 20 rolls/bale 1/2″ x 3″ x 50′ 20 rolls/bale
1/4″ x 4″ x 100′ 15 rolls/bale 1/2″ x 3 1/2″ x 50′ 17 rolls/bale
1/4″ x 6″ x 100′ 10 rolls/bale 1/2″ x 4″ x 50′ 15 rolls/bale
1/4″ x 8″ x 100′ 7 rolls/bale 1/2″ x 5″ x 50′ 12 rolls/bale
1/4″ x 48″ x 100′ 1 roll/bale 1/2″ x 6″ x 50′ 10 rolls/bale
1/2″ x 8″ x 50′ 7 rolls/bale
1/2″ x 48″ x 50′ 1 roll/bale
* Special sizes available upon request.

October 2008

P.O. BOX 397 HAMPSHIRE, IL 60140 PHONE: 800-542-POOL (7665) FAX: 847-214-2268

“DECK-O-SEAL®, A Division of W. R. MEADOWS, INC., warrants at the time and place we make shipment, our material will be of good quality and will conform with our published specifications in force on the date of acceptance of the order.” Read complete warranty. Copy furnished upon request.
The information contained herein is included for illustrative purposes only, and to the best of our knowledge, is accurate and reliable. DECK-O-SEAL cannot however under any circumstances make any guarantee of results or assume any obligation or liability in connection with the use of this information. As DECK-O-SEAL has no control over the use to which others may put its product, it is recommended that the products be tested to determine if suitable for specific application and/or our information is valid in a particular circumstance. Responsibility remains with the architect or engineer, contractor and owner for the design, application and proper installation of each product. Specifier and user shall determine the suitability of products for specific application and assume all responsibilities in connection therewith.

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U.S. Green Building Council Association of Pool & Spa Professionals Independent Pool & Spa Service Association National Plasterers Council

For further green and LEED information on DECK-O-SEAL products, visit the W. R. MEADOWS Green Page.