JAYCOSEAL M973 & M974 are high-performance, coal tar-based joint sealants specially designed for expansion and construction joints in heavy-duty structures. These two-component systems are highly resistant to fuel, oil, and hydraulic fluids, providing long-lasting flexibility and adhesion even in demanding conditions. They are suitable for use in joints up to 75mm wide and ideal for concrete structures such as reservoirs, canals, taxiways, basements, swimming pools, and water-retaining structures.
Available Pack Sizes
• JAYCOSEAL M974: 2 L
• JAYCOSEAL M973: 5 kg
In Stock
| Property | Specification |
|---|---|
| Base | Coal Tar Modified Epoxy Compound |
| Type | Two-Component, Solvent-Free Sealant |
| Color | Black / Dark Brown |
| Mixing Ratio | Part A : Part B = 1 : 1 by volume |
| Pot Life | Approx. 45 minutes @ 25°C |
| Hardness | Low Modulus, Flexible After Cure |
| Curing Time | Initial: 8–10 hours / Full Cure: 48 hours |
| Chemical Resistance | Excellent resistance to fuels, oils, and hydraulic fluids |
| Movement Accommodation | ±25% of joint width |
| Shelf Life | 12 months (in unopened container) |
| Storage Conditions | Store below 30°C, away from direct sunlight |
It’s used as a high-duty expansion joint sealant for building and civil structures, including reservoirs, basements, and taxiways.
It’s a two-component, coal tar epoxy sealant with excellent chemical and fuel resistance.
Suitable for expansion joints up to 75mm wide.
Yes, it offers excellent resistance to oils, fuels, and hydraulic fluids.
It’s ideal for water-retaining structures, bridges, canals, and heavy-duty floors.
Initial cure in 8–10 hours and full cure within 48 hours at 25°C.
Mix Part A and Part B in equal parts (1:1 by volume) until uniform.
Yes, it’s perfect for basements, foundations, and pipelines.
Yes, it remains low modulus and flexible, accommodating joint movement.
Store in a cool, dry place below 30°C, away from sunlight and heat sources.
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