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M-D Building Products

M-D Building Platinum™ Window Seal for Ex-Large Gaps, White, 17ft

  • Based on 59 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Sep 6
Order within 1 hour and 14 minutes
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Features

  • Made of top-quality EPDM and silicone rubber tape
  • Seals gaps at the bottom of your window to protect against drafts, moisture, dust and insects
  • 3/8 in. W x 3/8 in. H x 17 ft. L
  • White color
  • Highly water resistant
  • Seals extra-large gaps up to 3/8 in.
  • All-climate weather resistant
  • Self-adhesive
  • Also seals doors
  • Cut with scissors to desired length

Description

The M-D Premium Silicone Rubber Window Seal for Ex-Large Gaps is designed to protect against drafts, moisture, dust and insects. Save on energy by sealing windows keeping the heat or air conditioning from escaping. Made of Premium Silicone Rubber this seal exhibits very high resistance to extreme temperatures and remains flexible when below freezing. It also provides maximum resistance to wear and tear. The self-adhesive design is easy to install by simply pressing onto a clean and dry surface. No hardware required. Before installation, cut to desired length using scissors. From the Manufacturer High performance Silicone/EPDM rubber blend provides a superior seal to block out drafts and dust around doors and windows. Stays durable and flexible in extremely cold and hot temperatures, down to -40°F and up to 140°F. Saves energy and money and year-round. Guaranteed flexible for the life of your home.

Brand: M-D Building Products


Material: Rubber


Color: White


Product Dimensions: 204"L x 0.38"W


Item Thickness: 0.25 inches


Brand Name: M-D Building Products


UPC: 043374438468


Number of Items: 1


Number of Packs: 1


Global Trade Identification Number: 68


Manufacturer: M-D Building Products


Unit Count: 1 Count


Included Components: MD Building - 43846


Item Type Name: MD Building - 43846


Item Weight: 18.14 g


Model Number: MD Building - 43846


Manufacturer Part Number: 43846


Manufacturer Warranty Description: Warranty


Item Dimensions L x W: 204"L x 0.38"W


Item Thickness: 0.25 inches


Material Type: Rubber


Color: White


Recommended Uses For Product: Windows,Doors


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quick and effective solution to leaking windows
Color: White
This seal was easy to install and use and I saw that the draft coming through my windows immediately stopped. The only issue is that the adhesive could be improved, as the seal didn't stick well at certain points, but since I don't always open the windows, it's not a big issue for me.
Reviewed in the United States on January 27, 2021 by Ayodele Adeboye
    • Easy to use, holds strong, works well
Color: White
Review Image by Amazon Customer
Got these to help block out the edges for this living room shade that didn't quite work. Blocks out light just fine if I keep the shade closed with a bungee chord. Ghetto, but effective :). Seal would work great for normal purposes, and would provide adequate insulation. Been working solid with no issues, seems durable. ... show more
Reviewed in the United States on November 26, 2025 by Amazon Customer
    • Adhesive is a little weak
Color: White
I have a large patio window that is 20+ years old, and the wood frame started to warp from the sun over the years, so during windy days the windy blows through the tiny gaps and makes high pitch noise. I tried many weather strips to no avail, but this one actually works. I don't know what makes this one different from other seemingly identical weather strips, all I know is I bought 10 of these for all my windows and doors, and they are still going strong after 4 months when all others failed after weeks. The adhesive on this one is a bit on the weak side, but nothing some Gorilla Glues won't fix. ... show more
Reviewed in the United States on January 13, 2019 by Jianyu Chen
    • Sitting next to an under insulated window? I have got a solution…
Color: White
Superior insulating quality and flexibility of the material allows for cutting to size with an ordinary scissors and placing the material sticky side down into window crevices and gaps
Reviewed in the United States on January 14, 2024 by Halcyon Days
    • Adhesive is garbage
Color: White
Very weak adhesive that doesn't stick well at all. Immediately comes off even after cleaning all surfaces with 99% rubbing alcohol
Reviewed in the United States on January 24, 2026 by Nizel A.
    • Poor adhesive
Color: White
Does not stay stuck. The entire upper section above door succumbed to gravity a day after installation.
Reviewed in the United States on October 25, 2025 by Barstock
    • Adhesive not good
Color: White
Does not stick well. I used around windows, but most fell off and had to try to glue it on. Returned ones I did not use.
Reviewed in the United States on September 23, 2025 by G-MAN
    • Good ol standby
Color: White
Basic, simple, worked as expected to seal an old and drafty double hung window.
Reviewed in the United States on February 22, 2020 by Luis

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