For Windows and Doors
Pro-Lon™ Seal Properties
When it comes to compression seals for windows, whether they are made of wood, vinyl, or aluminum, Pro-Lon™ weather seals provide premium performance.
Pro-Lon™ Features & Benefits
| Features |
Benefits |
| Industry Leading Compression Set Resistance |
Product will maintain its sealing capability for the life of the fenestration product and leads the industry in the lowest functional height lost over time. |
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| Low Closing Force
Low CLD (compression load deflection) |
Seal compresses with minimal force resulting in low operating forces for end user of fenestration product and also reduces the need for heavier or more expensive hardware. |
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| Weather Resistant |
Polyethylene film is formulated to withstand the harmful effects of the sun and all types of weather conditions. Product maintains its structural integrity and aesthetically pleasing looks for the life of the fenestration product |
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| Tear & Puncture Resistant Exterior |
The polyethylene film is extremely tough and will resist tears and punctures, even in high traffic areas on door jambs. |
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| Performance In All Types Of Climates & Conditions |
With a temperature operating range of -40 F. to 160 F. Pro-Lon™ will perform solidly in all areas of the U.S. in all seasons. |
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| Lowest Air Infiltration Of All Weatherseals Now On The Market |
Save Energy - Eliminate drafty windows in heating climates and keep the air conditioning air inside in cooling climates due to very low air infiltration performance. |
Performance Data
- Adhesive Strength 4 (700) (peel) Most surfaces lb/in, (N/m)
- Temperature resistance -40 F to 190 F
- Chemical resistance Good against oils, greases, com¬monly used solvents and mild acid & alkalis
- Staining Resistance non-staining lacquers, enamels, varnishes and ordinary paints
- K-Factor 0.25
- Toxicity No sensitization or irritation in contact with normal skin.
Real World Sealing Performance!
Pro-Lon ™ For Doors

Magnetic Foam Seals
For the ultimate in sealing performance for steel slab or skinned doors and steel enclosures. Also an excellent choice for OEM applications where steel surfaces are used.
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