Sealants are the form of a substance used to block the passage of fluid that comes from the joints or openings. It is also used for blocking the dust, sound and heat transmission. It can be weak or strong, temporary or permanent, flexible or rigid.
The adhesive sealant can seal from top structures to the substrate and suitable for waterproofing process as it can maintain the moisture within the components. It comes with protective features like thermal or acoustic insulation. Sometimes it may have electrical properties. It can also be used for smoothing or filling purpose. It has less strength and higher elongation than adhesives. Sealant mainly contains inert filler material usually formulated with an elastomer that has high flexibility. It has a paste consistency to fill the gaps between substrates and low shrinkage after application. It serves the sectors like aerospace, electronics, durable and consumer goods, maintenance and repair, packaging industries.
One component type - It comes in a cartridge. No special equipment is required for applying this sealant. It has chemical technologies like latex water-based, silicone, urethane.
Two-component type - It is composed of 2 parts - base and activator. It requires a bulk gun and mixing equipment to prepare a sealant. Some of the chemical technologies include - epoxy penetrating solvent-based, silicone and urethane.
Sealant tapes - It comes with flexible backing. Some of its types include butyl and silicone, and urethane.
Dow Corning 789 - 600 ml, Black Silicone Weather Proofing Sealant - It is suitable to use on concrete, aluminium, glass, and masonry. It cures at room temperature to produce durable and flexible silicone rubber seal. It has UV resistant properties and thus can be applied for both interiors and exterior application.
Dow Corning 688 - 300 ml, Grey Silicone Glazing and Cladding Sealant - It is resistant to UV rays, moisture, weathering, temperature and other solvents. It can be applied on glass, aluminium, stainless steel, etc.
Loctite 577 - 50 ml Acrylic Sealant - It is mainly used for sealing metallic pipes, fittings, and threaded assemblies. It is preferred for not shrinking after application. It can withstand the temperature up to 180-degree Celcius and max pressure resistance of 10,000 psi.
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Sealants Price List in India 2025 |
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Best Sealants Models | Price |
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Dowsil RTV 732 - Multi-Purpose Sealant, White 300ML Cartridge | ₹340 |
Dowsil RTV 732 - Multi-Purpose Sealant, Clear 300ML Cartridge | ₹340 |
Dowsil RTV 736 - Clear Silicone Sealant (Net 300 ML) | ₹450 |
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This data was last updated on 07/18/2025 |