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Ceilcote EJ-3 Elastomeric Joint Sealant 5 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
$864.96
Drop Shipped
SKU
CC-EJ3 5 GAL
Ceilcote EJ-3 Elastomeric Joint Sealant – 5 Gallon
Ceilcote EJ-3 is a two-component, pourable polysulfide elastomer designed for horizontal joint sealing in chemically aggressive environments. Once cured, it forms a flexible, watertight synthetic rubber seal that resists water, salts, dilute acids, alkalis, and many solvents. With excellent adhesion to concrete, steel, tile, and brick, EJ-3 accommodates cyclic joint movement while providing durable chemical resistance and long service life in industrial settings.
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Key Features
- Two-component pourable polysulfide elastomer.
- Creates watertight, chemical-resistant joint seals.
- Excellent adhesion to concrete, masonry, and steel.
- Accommodates up to 25% cyclic joint movement.
- Durable resistance to water, salts, dilute acids, alkalis, and many solvents.
- Easy application with primer and backing material.
Applications
- Sealing expansion and control joints in concrete floors.
- Chemical process areas and secondary containment structures.
- Horizontal joints in tile, brick, and monolithic flooring.
- Industrial and commercial facilities requiring durable 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 for sealing expansion and control joints in chemically exposed concrete and flooring systems.
What chemicals does it resist?
EJ-3 provides resistance to 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, the joint is 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 packaging sizes are available?
It is supplied in 1 gallon and 5 gallon units.
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