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1333 Series D-Shaped Sponge Rubber Seal

Home  »  Rubber Extrusion and Rubber Seals  »  EPDM Rubber Seals  »  D-Profile Round Rubber Seals  »  1333 Series D-Shaped Sponge Rubber Seal

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About This .375” D-Shaped Weatherstripping

This D-shaped rubber seal (available with BT 3M adhesive or HT standard pressure-sensitive adhesive), has a height of .218" and a width of .375". It provides the ultimate bond between the rubber and its substrate. Learn more about this D-shaped EPDM sponge rubber seal’s half-round shape, adhesive, specs, installation, and more below.

D-shaped round rubber seals can be used for weatherstripping to seal out:

  • • Air leaks
  • • Moisture
  • • Dirt and debris

These half-round sponge rubber seals also provide vibration reduction and some noise cancellation. They’re recommended for use between two substrates such as:

  • • Doors (house, garage, auto, RV, etc.)
  • • Car trunks
  • • Windows
  • • Hatches
  • • Electrical enclosures
  • Coolers
  • • And more

When used as a self-adhesive door seal, D-shaped EPDM sponge rubber seals can fill in gaps on doors and lids where the gap may vary in size. For optimal performance, remember to choose the D-shaped weatherstripping rubber seal of in the a size that will provide 25–-40% compression for your application.


Tape Options *

*Price breaks, where applicable, will be reflected in cart*


For volume pricing above 5,000 feet, please contact Trim-Lok at 888-874-6565

Price: Build Your Part for Pricing
3M adhesive bonded tape for D-shaped rubber seal3M™ BONDED TAPE SYSTEM 
The BT option for your self-adhesive rubber seal provides the ultimate bond to the rubber and the ultimate bond to the substrate. With 3M, D-shaped rubber seals can create a moisture barrier and air-tight seal. With the highest peel and sheer 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.

3M™ Heat-Activated Acrylic Foam and Acrylic Plus Tape Application Guidelines

Bonded tape  adhesive component diagram
Pressure-sensitive tape for self-adhesive door sealsSTANDARD PRESSURE SENSITIVE ADHESIVE
The HT option for your D-shaped EPDM sponge rubber seal is an acrylic-based adhesive. It works best when used to hold the half-round 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.
Pressure-sensitive adhesive component diagram
Description Rubber Seals come in a variety of specially designed shapes made
from custom formulated EPDM sponge rubber compound.
Resistance to
  • Ozone – Excellent
  • Water Absorption - Excellent
  • Sunlight Aging - Excellent
  • Low Temperature – Excellent
  • Compression Set - Good
General Temp. Rating -20°F to 158°F
Compresion Rating and Density Recommended 25% compression for the maximum performance. It
has density of 21 to 23 lbs./pcf
Flammability and Code Compliance Download the PDF: FMVSS 302
Download the PDF: UL50
UL recognized component logo This (component or material) is Recognized by UL. Representative samples of this component have been evaluated by UL and meet applicable UL requirements.
Adhesive Options
  • "BT" Pressure Sensitive Adhesive This 3M acrylic, automotive-grade tape creates the ultimate bond to the rubber and the ultimate bond to the substrate. It creates a moisture barrier and airtight seal between rubber and substrate. 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 from -20°F to 158°F.
  • "HT" Pressure Sensitive Adhesive This acrylic-based adhesive is best used to hold the rubber seal in place while installing it 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 from -20°F to 158°F. Please note: During application, the ambient temperature must be above 60°F.
View the Rubber Seal Spec Sheet
Half-round rubber seal shown in various positions
Part Number Top Bend Radius Inside Bend Radius Outside Bend Radius
X1333BT 2.00" 2.00" 2.00"

Installation Video and Instructions for the D-Shape Foam Rubber Seal

Find out how to install our D-shaped rubber seal by downloading our installation instruction PDF. Watch the video now to see a demonstration.


To view our entire catalog of products, download a copy or request a free copy be mailed to you.

D-shaped weatherstripping, page 30

 

Half-round rubber seals, page 31

EPDM D-shaped sponge rubber seals, page 32