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Internet # 304363428

Model # 02-127-0125

Closed Cell Sponge Rubber Blend 1/8 in. x 39 in. x 78 in. Black Foam Rubber Sheet

$26.21
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  • Water-resistant and impermeable
  • Shock and vibration absorbant
  • Great for electrical and thermal insulation
  • View More Details

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Product Details

About This Product

These closed cell rubber sponge sheets are made from a combination of neoprene and SBR (styrene butadiene rubber). Sponge rubber is also referred to as cellular or foam rubber. It takes these names because numerous air pockets are dispersed throughout the rubber material, making it softer and easier to compress than a piece of solid rubber. Because these air pockets excel at trapping and dissipating kinetic energy, rubber sponge demonstrates great shock absorbency and sees use in applications for energy absorption and protective rubber padding. These air pockets also ensure that sponge rubber transmits heat at a slower rate compared to solid rubber, making it a suitable material for heat insulation. Due to the sealed nature of the air pockets in closed cell sponge rubber, this material has a higher compressive strength than open cell sponge and retains its shape more effectively. This attribute of closed cell sponge makes it preferable to open cell sponge in padding applications where a rubber piece must maintain its structure while still absorbing kinetic energy. The isolated air pockets in closed cell rubber also make the material far less porous than open cell, preventing the material from absorbing water. Combined with the water-resistant nature of SBR and neoprene rubber materials, this closed cell blended rubber often sees use in aquatic and gasketing applications.

Highlights

  • Great for absorbing shocks, vibrations anda sounds from various impacts
  • Compressive foam rubber for use in gasketing and padding
  • Sees use in laptop sleeves, electrical insulation anda thermal insulation
  • Water-resistant and popular for aquatic applications
  • Closed cell sponge retains its shape and dimensions better than open cell
  • Exhibits long-lasting qualities of both styrene-butadiene rubber and neoprene
  • Return Policy
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Product Information

Internet # 304363428

Model # 02-127-0125

Additional Resources

Shop All Rubber-Cal
From the Manufacturer

Specifications

Dimensions

Product Length (ft.)

06.5 ft

Product Thickness (in.)

0.125 in

Product Thickness (mm)

3 mm

Product Width (ft.)

3.25 ft

Product Width (in.)

39 in

Width (ft) x Length (ft)

3.25ftx06.5ft

Width x Length

3 ft x 7 ft

Details

Color Family

Black

Features

Shock Absorbent

Flooring Product Type

Rubber Sheet

Indoor/Outdoor

Indoor/Outdoor

Installation Method

Adhesive

Location

Gym

Material

Rubber

Package Quantity

1

Product Thickness

Light (Under 6mm)

Returnable

90-Day

Sheet Features

Opaque

Style

Industrial

Surface Pattern

Textured

Use For

Exercise Equipment, Gymnastics

Questions & Answers

I plan to put a small deck (6' x 6") on my almost-flat roof, using deck tiles. I'd like a protective underlayment to protect the roof membrane. Is this appropriate for that use? Also, is there an easy way to join 2 strips of this product?
ByJun 13, 2025
1 Answer | 
Answer This Question

Hello Sean, Thank you for your question! While the Closed Cell Sponge Rubber Blend sheets offers good shock absorption in lighter-duty applications, it is not recommended for use under deck tiles on a roof. Over time, repeated compression from the weight and movement of the deck tiles can cause the sponge material to lose its ability to rebound, reducing its effectiveness as a protective layer. For your application, a more durable material such as our recycled rubber rolls would be a better fit. These are designed to handle heavier loads and provide long-term protection in similar environments. Please note that we do not offer a method for permanently joining sheets or strips of our materials, so any seams would need to be aligned manually. Please let us know if you’d like more information on our recycled rubber options or help selecting the best material for your project! Best, Robert Morris, Rubber-Cal Inc.

By|Jun 16, 2025
    0/0


    Can I use this on my artificial grass for a underlay outdoor
    ByFeb 22, 2025
    1 Answer | 
    Answer This Question

    Hello Brad, Thank you for your question! The Closed Cell Sponge Rubber Blend Black Foam Rubber Sheet can be used as an underlay for artificial grass. While it has a sponge-like texture, it should provide effective support as long as proper drainage and stability are maintained. If you have any further questions, please feel free to reach out! Best, Robert Morris, Rubber-Cal Inc.

    By|Feb 24, 2025
      0/0


      Is there much of a difference between this sheet and a Neoprene sheet? Does one side stick to surfaces?
      ByOct 20, 2023
      1 Answer | 
      Answer This Question

      Hello Georgio, Thank you for your inquiry! Rubber-Cal Closed Cell Sponge Rubber Blend and Neoprene sheets are both types of rubber materials used for various applications. While they share some similarities, they also have differences: Material Composition: Rubber-Cal Closed Cell Sponge Rubber Blend: This product typically consists of a blend of rubber materials, including synthetic and natural rubber. It's designed to have a closed-cell structure, meaning the cells within the material are not interconnected, which results in a material that is impermeable to air and moisture. Neoprene Sheet: Neoprene is a type of synthetic rubber that is specifically known for its resistance to various elements, including oil, UV radiation, and weather. Neoprene is a type of closed-cell rubber. Unfortunately we do not sell our adhesive backed products on Home Depot. In order to adhere the rubber sheet to itself or other materials, we recommend using a polyurethane-based adhesive. Hope this helps! Sincerely, Robert Morris Rubber-Cal, Inc.

      By|Oct 20, 2023
        0/0


        I'm trying to find a mat for my garage to put under a power rack/function trainer, so it doesn't damage the epoxy floor. Would this be thick enough?
        ByJun 1, 2023
        1 Answer | 
        Answer This Question

        Hello, No, the Rubber-Cal Closed Cell Sponge Rubber Blend 1/8 in. x 39 in. x 78 in. Black Foam Rubber Sheet will not be a good to put under a power rack/function trainer. Sponge rubber is not suitable for flooring purposes. It would fully compress with that amount of weight on it and it is not abrasion resistant. It is best to use our Elephant Bark for this application. If its only purpose is floor protection, the thinnest thickness will work, which is 3/16". Elephant Bark Rubber Flooring is designed to withstand the most abrasive conditions. It is designed for heavy-duty commercial applications as it is made from recycled rubber. A rolled rubber flooring product made from 100% recycled US rubber. Elephant Bark provides excellent UV protection due to its high content of EPDM, making this matting excellent for indoor and outdoor purposes. Sincerely, Robert Morris

        By|Jun 5, 2023
          0/0


          I want to use it for covering a cracked dashboard and covering with vinyl sheet. Is this an appropriate material for my plans, and what kind of cement or glue is most compatible?
          ByDec 9, 2022
          1 Answer | 
          Answer This Question

          Hello, The Closed Cell Foam Rubber sheet would work for this application. Unfortunately, we do not have a glue recommendation to apply it to your dashboard; however, you may secure it with double-sided tape. I hope this answer helps! Sincerely, Robert Morris Rubber-Cal, Inc.

          By|Dec 15, 2022
            0/0


            Can I get cheaper
            ByApr 12, 2021
            1 Answer | 
            Answer This Question

            I am sorry to hear that this item does not meet your price expectations. We price our products competitively against other rubber material providers. Unfortunately, we are not expecting to update the price of this item as of today. Thank you, Rubber-Cal, Inc.

            By|Apr 12, 2021
              0/0


              Will this product hold up to external climate and environment?
              BySep 15, 2020
              1 Answer | 
              Answer This Question

              This product will hold up over a longer period of time, but eventually will start showing signs of environmental related weathering such as discoloration and cracks.

              By|Sep 19, 2020
                0/0


                Is this product easily cut down to a specific size needed?
                BySep 15, 2020
                1 Answer | 
                Answer This Question

                Yes you can cut this material with the help of a utility knife and a straightedge ruler.

                By|Sep 19, 2020
                  0/0


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                  Customer Reviews

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                  This was exactly what I needed. I have an older mobile home and the window sills don't look so good. So I cut this rubber to size and lined the sill and now they look presentable.
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                  Product Snapshot

                  Ideal for shock absorption, insulation, and aquatic applications, this closed-cell sponge rubber blend ensures water resistance and shape retention.
                  Ideal for industrial uses, this neoprene sheet offers moderate chemical, abrasion, and weather resistance with a firm yet pliable 50A durometer.
                  Ideal for industrial applications needing moderate oil, chemical, and weather resistance with a firm yet pliable surface.
                  Ideal for industrial uses, this neoprene sheet offers moderate oil, chemical, and weather resistance with a firm yet pliable 50A durometer.

                  Thickness

                  1/8 in.
                  1/8 in.
                  3/32 in.
                  1/8 in.