Euclid Eucolastic 1SL is a single-component, self-leveling, moisture-cure polyurethane hybrid sealant for horizontal joints that see rubber tires and foot traffic. It stays bonded through thermal cycling and holds a slope up to 6 percent.
Euclid Eucolastic 1SL is a single-component, self-leveling, moisture-cure polyurethane hybrid sealant for horizontal joints that see rubber tires and foot traffic. It stays bonded through thermal cycling, holds a slope up to 6 percent, and is used on sidewalks, plazas, truck terminals, pool decks, and traffic-loop seals. Skin time is about 1.5 to 2 hours, with a tack-free surface in 7 to 8 hours at 75 F.
| Property | Value |
|---|---|
| Manufacturer | Euclid Chemical |
| Product | Eucolastic 1SL |
| Chemistry | Single-component self-leveling polyurethane hybrid |
| Packaging | 30 oz cartridge |
| Movement capability | +100% / -50% |
| Skin / tack-free | 1.5 to 2 hours / 7 to 8 hours |
| Service temperature | -40 F to 185 F |
| Slope hold | Up to 6% |
| Shelf life | 1 year unopened |
| Compliances | ASTM C920 Type S Grade P Class 50 |
| Color | Limestone |
Product documents: Eucolastic 1SL Technical Data Sheet
What is Euclid Eucolastic 1SL?
A single-component, self-leveling polyurethane hybrid sealant for horizontal joints. It is built for tire and pedestrian wear and holds a slope up to 6 percent.
Gray or limestone?
Both colors are the same published chemistry in 30 oz cartridges. Use the color card on this page for the other color.
Can it go on green or damp concrete?
It can be installed 24 hours after forms are stripped. Concrete may be damp, but standing water in the joint will cause bubbling.
Is 1NS the same chemistry in a different pack?
No. 1SL is self-leveling for floors. Eucolastic 1NS is non-sag for vertical and overhead joints.
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