Dry Fast Open Cell Antimicrobial Foam (Medium) 3" x 24" x 72"
SKU: 183M2472
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Dry Fast Open Cell Antimicrobial Foam is a great-quality open cell foam, also known as reticulated foam, with a solid, firm feel. The open pores in the foam allow for water and air to pass through, making Dry Fast foam a great choice for marine and outdoor applications. Its antimicrobial properties prevent the growth of mold and mildew—another reason to choose Dry Fast for your boating and outdoor seating needs. This is not a high-density foam; therefore, it should be selected for occasional-use applications and not as berth foam for liveaboard boaters, unless breathability and superior drainage capabilities outweigh the longevity of the foam.

Dry Fast Open Cell Antimicrobial Foam’s superior airflow and heat dissipation, as well as its excellent water drainage capabilities, make it well suited for patio cushions and seating, cabin seating and mattresses. This foam has a medium stiffness, a density of 1.8 pounds per cubic foot and a foam IFD (Indentation Force Deflection) of 33 pounds.

Sailrite recommends covering Dry Fast foam with a high-performance, breathable fabric like Sunbrella for the top and sides and Phifertex mesh or Cushion underlining for the bottom to allow moisture to escape. If your cushions can be flipped, then Sunbrella, or another performance upholstery fabric, can be used on all sides of the cushion. Dry Fast is a virtually maintenance-free foam in sun, rain and even snow. Outdoor cushions will not retain water and indoor bedding feels much cooler. Professionals also suggest laminating a thin sheet of closed cell foam to the bottom of Dry Fast for the ultimate in cushion comfort and performance. Prior to lamination, poke holes with a small grommet hole cutter in the closed cell foam so the foam will drain.

The Sailrite® Blade Foam Saw expertly cuts through a full range of foam types. A standard electric kitchen knife can also be used, though the results won’t look as professional. To glue two pieces of foam together, Sailrite recommends using spray adhesive. Foam can also be glued on the sides to make a wider piece or layered to make thicker cushions. If layering foams with different stiffness levels, the firmer foam should be the bottom layer.

Please Note: Sheet size can vary up to 2 inches in length and 1 inch in width.

Important: Items are compressed for shipping, we recommend unrolling as soon as possible. Compressed foam takes up to a week to regain its original size and shape. Allow foam to fully decompress before cutting or using in a project.


Sale Unit: EA
Length: 72"
Width: 24"
Thickness: 3"
Foam Density: 1.8 pounds per cubic foot
Foam IFD: 33 pounds
Special Features: Antimicrobial/Biocide, Highly Breathable, Water Draining
Foam Material: Polyurethane
Foam Firmness is a measurement of the foam’s softness. Indention Force Deflection, or IFD, is the pressure in pounds needed to compress a 50 square inch circular plate 25% of the way into the foam.

At a Glance

Foam Usage: Occasional
Foam Uses: Cockpit Cushions, Patio Cushions
Foam Firmness: Medium



A. 3"
B. 24"
C. 72"


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Types of Foam for Cushions & Upholstery

In this helpful video, we will walk you through all the different types of foam Sailrite has to offer. Understanding the properties and uses of different foam types will help you know which one is right for your DIY project. The four types of foam we will cover are high density, medium density, open cell (Dry Fast) and a closed cell foam. After watching this video, you will be able to select the correct foam for your cushion or upholstery application.

Gluing Foam With Foam Lock Spray Adhesive

We test the holding strength of adhesive spray and see how it holds up when used on different foam types. This spray offers quick tack and high coverage while providing a very strong bond.

Cutting Foam With the Sailrite® Blade Foam Saw

This high-quality foam cutter is a great tool for both serious DIYers and small upholstery shops. It delivers smooth, clean cuts through many types of foam for professional-looking results every time.

Cutting Foam With an Electric Kitchen Knife

This video shows you how to use a standard electric kitchen knife to trim your foam to size, including some tricks to achieving a sharp cut line and using weights to keep the foam in place while cutting.


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