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D-Shaped Rubber Seals

D-shaped round rubber seal with adhesive-backed rubber strips

About D-Shaped Rubber Seals for Weatherstripping

Trim-Lok’s popular D-shaped profile rubber seals are available in a variety of specially designed height and width variations. Since each product is made from a custom-formulated EPDM sponge rubber compound, they provide excellent resistance to water absorption, ozone, sunlight aging, low temperature, and compression set.

Features and Applications

With a general temperature rating of -20°F to 158°F, our EPDM D-shaped weatherstripping are ideal for numerous applications. Our manufacturing facility allows us to provide top-quality, competitively priced rubber extrusions. Rubber D-shaped seals can help to:

  • Create a watertight seal
  • Drown out noise
  • Eliminate vibration
  • Protect your vehicle or home from the moisture and debris

D-shaped gaskets come in an assortment of sizes and shapes, and we can help you find the right D-shaped weatherstripping for any project or repair. Watch our video to learn how to install rubber seals on windows, doors and more.

Fit Options for Adhesive-Backed D-Shaped Gaskets

BT Tape

The BT option for your self-adhesive rubber seal provides the ultimate bond to the rubber and the ultimate bond to the substrate. It creates a moisture barrier and air-tight seal. With the highest peel and shear resistance, it can be used under high loads of stress and force. It has low initial tack for easy re-positioning during installation and needs 72 hours of cure time to come to full bond strength. It is rated for good heat performance between -20°F to 158°F.

HT Tape

The HT option for your D-shaped EPDM rubber seal is an acrylic-based adhesive. It works best when used to hold the rubber seal in place while installing in a static application or compressed between two stationary objects. It may be used in some light-duty dynamic applications against a variety of substrates. It is rated for good heat performance between -20°F to 158°F.

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Half-Round Rubber Seals Serve Many Industries

Whether you need to seal out water, noise, vibration, dust or dirt—the possibilities are endless with our D-shaped rubber seals. Trim-Lok rubber D-seals are ideal for the automotive and marine industries, manufacturing, garage doors, windows, and much more.

Why Choose Trim-Lok?

Since 1971, Trim-Lok has been a leading supplier of EPDM rubber seals, including half-round rubber seals and D-shaped weatherstripping. With easy application and the versatility to be used in an extensive range of applications and environments, our D-shaped gaskets are sure to meet or exceed your expectations. For more information about Trim-Lok’s line of EPDM foam and rubber seals, contact a local sales representative today.

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105 Series: .375” x .437” D-Shaped Rubber Seal

105 Series: .375” x .437” D-Shaped  Rubber Seal

D-Shaped EPDM Sponge Rubber Seal, with a height of .437" and a width of .375".

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101 Series D-Shaped Rubber Seal

101 Series D-Shaped Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .500" and a width of .500".

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202 Series D-Shaped Rubber Seal

202 Series D-Shaped Rubber Seal

With both a height and width of .5”, our D-shaped EPDM sponge rubber seal can act as a bumper or seal. Choose from two adhesive systems, or none when you place your order.

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2338 Series Rubber Seal

2338 Series Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .625" and a width of .500".

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D-Shaped Rubber Seal .625” (5381 Series)

D-Shaped Rubber Seal .625” (5381 Series)

D-shaped EPDM Sponge Rubber Seal, with a height of .625" and a width of .625".

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1458 Series D-Shaped Rubber Seal

1458 Series D-Shaped Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .750" and a width of .750".

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1678 Series D-Profile Rubber Seal

1678 Series D-Profile Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of 1.00" and a width of 1.00".

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1333 Series D-Shaped Sponge Rubber Seal

1333 Series D-Shaped Sponge Rubber Seal

EPDM D-shaped sponge rubber seal, measuring .218” (h) and .375” (w)

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1153 Series D-Shaped Sponge Rubber Seal

1153 Series D-Shaped Sponge Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a width of .375" and a height of .250".

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1543 Series D-Shaped Rubber Seal

1543 Series D-Shaped Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .190" and a width of .500".

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110 Series: .312 in. x .468 in. D-Shaped Rubber Seal

110 Series: .312 in. x .468 in. D-Shaped Rubber Seal

D-Shaped EPDM Sponge Rubber Seal, measuring .312" (h) by .468"(w).

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109 Series D-Shaped Foam Rubber Seal

109 Series D-Shaped Foam Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .360" and a width of .610".

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119 Series Rubber Seal

119 Series Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .375" and a width of .750".

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125 Series Rubber Seal

125 Series Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .530" and a width of .750".

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D-Shaped Rubber Seal 135 SERIES RUBBER SEAL with 3M™ Self-Adhesive Tape

D-Shaped Rubber Seal 135 SERIES RUBBER SEAL with 3M™ Self-Adhesive Tape

D-shaped rubber seal, with a height of .562" and a width of .750".

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5272 Series D-Shaped EPDM Sponge Rubber Seal

5272 Series D-Shaped EPDM Sponge Rubber Seal

This D-shaped EPDM Sponge Rubber Seal has a height of 1.00" and a width of 1.00". Use it for noise cancellation, vibration reduction, and—most importantly—weatherstripping.

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1655 Series Rubber Seal

1655 Series Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of 1.500" and a width of 1.250".

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2828 Series Round Rubber Seal

2828 Series Round Rubber Seal

D-shaped EPDM Sponge Round Rubber Seal, with a height of 1.040" and a width of .885” and optional 3M High Strength Tape System or General Purpose Pressure Sensitive Adhesive.

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1921 Series Rubber Seal

1921 Series Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .750" and a width of .875".

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5036 Series Rubber Seal

5036 Series Rubber Seal

The D-shaped EPDM Sponge Rubber Seal has a height of .500" and a width of .687".

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108 SERIES: .360” x .500” D-SHAPED WEATHER-STRIPPING RUBBER SEAL</

108 SERIES: .360” x .500” D-SHAPED WEATHER-STRIPPING RUBBER SEAL</

D-Shaped Weather-Stripping Rubber Seal, measuring .360" (h) by .500" (w).

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1750 Series D-Shaped Rubber Seal

1750 Series D-Shaped Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .760" and a width of .825".

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2337 Series .370" x .500" D-Shaped Rubber Seal

2337 Series .370" x .500" D-Shaped Rubber Seal

D-shaped EPDM Sponge Rubber Seal, with a height of .370" and a width of .500".

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2492 Series Rubber Seal

2492 Series Rubber Seal

D-shaped EPDM Sponge Round Rubber Seal, with a height of 1.250" and a width of 1.125".

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