Vulkem 445SSL | Semi-Self-Leveling Polyurethane Sealant for Joints
Vulkem 445SSL is a field-tintable, moisture-curing polyurethane sealant designed for use in horizontal expansion joints. Its semi-self-leveling properties make it easy to apply on horizontal surfaces, including those with up to a 6% slope. This multi-component system includes a tintable base and offers a selection of 70 standard colors, providing unmatched customization and aesthetics for a wide variety of horizontal applications.
Product Description
Formulated for faster installations, Vulkem 445SSL can be applied to damp or green concrete, saving valuable time on job sites. It’s UV- and jet fuel-resistant, making it perfect for high-traffic areas requiring long-term durability and flexibility. Its high-performance formulation ensures excellent adhesion and wear resistance, even in demanding environments like sidewalks, plazas, floors, and pool decks. Vulkem 445SSL delivers superior performance in sealing expansion joints and is also compatible with water immersion applications when properly cured.
Key Benefits of Vulkem 445SSL
- Self-leveling properties aid application on surfaces sloped up to 6%
- Can be tinted in the field and offers 70 standard color options
- UV-, wear-, and jet fuel-resistant for long-lasting durability
- Fast installation on damp or green concrete
- Excellent for sidewalks, floors, plazas, and pool decks
- High versatility, including use in horizontal water immersion joints
Common Applications
- Sidewalks and concrete floors
- Plazas and pool decks
- Horizontal expansion joints with slope
Storage & Packaging
Vulkem 445SSL is packaged in a multi-component pail set, with a tintable base and curing agent. Recommended storage is indoors at 50–77°F.
Product Properties
| Property | Value |
|---|---|
| Application Method | Caulk gun, trowel |
| Application Temperature | 40 °F (5 °C) or above |
| Coverage Rate | 308 linear feet/gal for 1/4″ x 1/4″ joints |
| Drying/Cure Time | 14 to 21 days |
Also see Vulkem 350 Waterproofing System for vertical and deck coatings. Visit Tremco for more sealant solutions.




