3 Seals is your one stop silicone rubber supplier, made in USA.
We have designed a unique seal, never seen before.
Our Heavy Duty lifetime seals have 3 different sides. Each with different dimensions. Giving you numerous options to close up to a 1"gap.
With a team of dedicated specialist, we aim to provide the best in product, customer service and support.
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HOW IT WORKS

Before installation, cut to desired length using a knife, Scissors
With different dimensions on all three sides. Our custom rubber seal has a snuggle fit that smoothly adjust to any under door
gap.
No Tools necessary. Just firmly press the seal into your gap, using whichever of the three sides that fits best.
Our seal was designed to trap the many unwanted forms of liquid. debris. Smoke. Insects.Rodents and more from entering.
Its Great for Hurricane prone areas. Stopping and trapping water from entering.
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AND FLOODING
Blocks water leaks, cold winds, debris, smoke and more.
Simply place it in the location needed, using the side that fits best.
Just cut to the size needed, and firmly place.
Multi-use seal
Our Threshold Silicone Rubber Seal protects against drafts, moisture, dust and insects. If needed, it can help save on energy by using our seal in your windows to keep the heat or air conditioning from circulating outside of the room.

Heavy Duty
With the Atlantic hurricane season starting June 1, builders are increasingly relying on silicone glazed impact-resistant glass and silicone waterproofing sealants to protect property from sustained winds and pounding rains.
Hurricane-prone areas require the best weatherproofing and glazing products available to protect building structures and prevent leaks,” said Larry Carbary, Associate Industry Scientist, Dow Corning Corporation. “Silicone weatherproofing, glazing and impact resistant sealants are the preferred solution because they provide more building protection and are proven to decrease structural damage and water infiltration under high wind speeds and pressures compared to other materials.” Structural silicone sealants are important in the effort to protect buildings from extreme weather events such as hurricanes because they strengthen building façades and windows, helping them withstand extreme temperature fluctuations, gale-force winds, acid rain, ultraviolet radiation, thunderstorms and even earthquake tremors.Silicones are strong but also flexible, allowing for the wide range of unique building designs characteristic of modern architecture.
Hurricane-prone regions of the United States have had great success using silicone sealants in the past to meet tougher building code requirements.
“The combination of structural strength and flexibility in the sealant is a key to meeting the impact-resistant glazing standards,” said Mark Baker, president of IBA Consultants, who has tested silicone sealants against other glazing materials in the construction of the Westin Diplomat Hotel in Florida. “While several other material types could deliver the strength to withstand the test’s initial impact requirement, I’m not aware of any sealant other than silicone that also provides the flexibility to hold up under the 9000-cycle wind load testing that follows.”
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