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PolySeal Sill Sealer

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Sill Seal - Makes Your Structure More Efficient


Plymouth Foam's PolySeal™ sill plate sealer is made from a lightweight polyethylene foam. By filling irregularities between the sill plate and the foundation, air infiltration is significantly reduced to provide savings on heating and air conditioning costs. Its durable, moisture-resistant characteristics aid in the prevention of water and insect intrusion, two of the leading caused of sill plate rot. Discover the PolySeal advantage and close the gap on energy leaks.
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Advantage of PolySeal
• Water resistant - prevents sill plate rot
• Reduces air infiltration - save on utility costs
• Great capillary break
• Extremely durable - will not deteriorate
• Resilient - seals imperfect surfaces
• Helps to block bugs and other pests
• Easy to Install - labor saving advantage
• Available in widths of 3 1/2”, 5 1/2”, 7 1/2”
• Rolls are 50ft in length
• Material thickness is 3/16”
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Enviromentally Friendly
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PF Spec Sheet
(R-Values and PSI)

(15 year study)

Why EPS is Better
(Recent Research)

Other Innovative Uses for PolySeal Sill Sealer
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PolySeal™ can help provide a thermal break in a variety of locations such as trusses or walls.
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PolySeal™ can act as a backer rod or filler to fill in a gap that needs to be caulked. PolySeal can easily be cut and folded for installation.
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PolySeal™ can act as a separator to keep wood from wicking moisture. PolySeal is offered in 3 1/2”, 5 1/2”, 7 1/2”.
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PolySeal™ can provide an excellent seal around windows, door or other projection. PolySeal is closed cell and is resistant to water and water vapor.
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PolySeal™ is a plate sealer that has the ability to compress and seal irregular surfaces such as concrete. PolySeal can stop energy loss at the plate line.
Plymouth Foam manufactures Sill Seal for the United Sates including the states of Wisconsin, Illinois, Indiana, Iowa, Minnesota, Michigan and Ohio. Plymouth Foam provides Sill Seal uses polyethylene Foam in roll form for capillary break as well as a great reducer of air filtration and moisture wicking. Polyseal Foam Sill Sealers or sill plate gasket is equal to or better than Foamsealr, TVM, Primesource, Sill55. or Reflectix sill sealers. Plymouth Foam’s Sill Seal is manufactured in Wisconsin and proudly Made in the USA.