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Ceilcote EJ-3 Elastomeric Joint Sealant 1 Gal
Two component, pourable polysulfide elastomer designed for use in applications requiring a chemical resistant sealant for horizontal joints. forms a tight fitting synthetic rubber compound to effectively seal out water and many aggressive chemical solutions.
- High Flexibility
- Good Adhesion
- Chemically Resistant
$288.75
Drop Shipped
SKU
15111
Ceilcote EJ-3 Elastomeric Joint Sealant – 1 Gallon
Ceilcote EJ-3 is a two-component, pourable polysulfide elastomer designed for chemical-resistant sealing of horizontal joints. It cures to form a flexible synthetic rubber compound that protects against water infiltration and many aggressive chemical solutions. With excellent adhesion to concrete, steel, and other construction materials, EJ-3 accommodates cyclic joint movement while maintaining long-term durability in demanding environments.
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Key Features
- Two-component pourable polysulfide elastomer.
- Forms a watertight, chemical-resistant synthetic rubber seal.
- Excellent adhesion to concrete, steel, and masonry.
- Resistant to water, salts, dilute acids, alkalis, and many solvents.
- Flexible and accommodates joint movement up to 25%.
- Non-sag formulation for horizontal joints.
Applications
- Sealing control and expansion joints in chemical environments.
- Horizontal joints in concrete, tile, and brick floors.
- Joints around chemical process areas and containment structures.
- Industrial facilities requiring durable, chemical-resistant joint seals.
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Two-component polysulfide elastomer |
| Elongation (ASTM D-412) | 200% |
| Tensile Strength (ASTM D-412) | 180 psi (1.24 MPa) |
| Hardness (ASTM D-2240) | Shore A 30–35 |
| Temperature Resistance | -50°F to 200°F (-45°C to 93°C) |
| Working Time @ 75°F | 30–60 minutes |
| Open to Traffic | 24 hours at 75°F |
| Full Cure | 72 hours at 75°F |
| Coverage | ~200 in³/gal |
| Packaging | 1 gal and 5 gal units |
| Shelf Life | 12 months at 70°F in unopened containers |
Frequently Asked Questions
What is Ceilcote EJ-3 used for?
It is used to seal horizontal expansion and control joints in concrete, tile, and brick floors, especially in chemical-resistant environments.
Can it resist chemicals?
Yes, it resists water, salts, dilute acids, alkalis, and many solvents, though not recommended for chlorinated solvents, ketones, or acetates.
What is the cure time?
At 75°F, joints are open to traffic in 24 hours and fully cured in 72 hours.
How flexible is it?
EJ-3 accommodates up to 25% joint movement with 200% elongation capacity.
What sizes are available?
It is available in 1 gal and 5 gal units.
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