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Tremco Willseal 250
Mechanical expansion joint designed to provide a watertight, dust-proof, airtight, noise-reducing, thermally insulating, and UV stable primary seal that does not require invasive anchoring for installation. Pre-compressed, self-expanding open micro-cell polyurethane foam impregnated with a hydrophobic, acrylic polymer sealing compound coated with a factory-applied silicone sealant.
- Non-Invasive Anchoring
- Accomodates Rapid Joint Movement
- UV Stable
SKU
22387
Tremco Willseal 250 - High-Performance Horizontal Expansion Joint Sealant
Tremco Willseal 250 is a pre-compressed, self-expanding open micro-cell polyurethane foam joint sealant impregnated with a hydrophobic acrylic polymer and coated with factory-applied silicone. Engineered for horizontal expansion joints exposed to vehicular and pedestrian traffic, Willseal 250 delivers exceptional sealing performance against water, dust, air, noise, and thermal insulation while accommodating up to ±50% movement. Designed for long-term durability, it resists UV radiation, extreme temperatures, and harsh environmental conditions, making it the perfect solution for parking garages, stadiums, airport taxiways, and bridge joints.
Key Features:
- Accommodates up to ±50% joint movement
- Pre-compressed and self-expanding for easy installation
- Hydrophobic acrylic polymer for water resistance
- UV stable and thermally insulating
- Non-invasive anchoring eliminates the need for adhesives or fasteners
- Available in a variety of colors and custom sizes
Applications:
- Horizontal expansion joints for vehicular and pedestrian traffic
- Parking garages, stadiums, and plaza decks
- Bridge and road joints
- Airport taxiways and runways
Technical Specifications:
| Specification | Details |
|---|---|
| Movement Range | ±50% |
| Temperature Stability | -40°F to 185°F (-40°C to 85°C) |
| UV Resistance | Pass |
| Ideal Storage Temperature | 68°F (20°C) |
| Available Joint Sizes | ½” to 6” (6.5 ft lengths) |
| Colors | Concrete Gray, Highway Gray, Traffic-Grade Black |
| Shelf Life | 1 year (stored properly) |
Frequently Asked Questions:
Can Willseal 250 be used in areas with extreme temperatures?
Yes, Willseal 250 has a temperature stability range from -40°F to 185°F (-40°C to 85°C), making it suitable for extreme climates.
Is it available in custom sizes?
Yes, custom sizes can be requested through an authorized Tremco or Willseal distributor.
| Brand | Tremco |
|---|---|
| Manufacturer | Tremco |
