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Information @ a Glance

  • A sealant is a material designed only to fill up a space. The spaces can be joints, gaps or cavities that occur between two substrates. ex : The space between a bathtub and wall.

  • A heat sealer is a machine used to seal products, packaging, and other thermoplastic materials using heat. This can be with uniform thermoplastic monolayers or with materials having several layers, at least one being thermoplastic.

  • The primary function of a joint sealant is to maintain a positive seal between the sides of a joint, which may be subject to movement.

  • Heat sealing can join two similar materials together or can join dissimilar materials, one of which has a thermoplastic layer.

  • A sealant may be viscous material that has little or no flow characteristics and stay where they are applied or thin and runny so as to allow it to penetrate the substrate by means of capillary reaction.

  • Anaerobic acrylic sealants generally referred to as impregnants are the most desirable as they are required to cure in the absence of air, unlike surface sealants that require air as part of the cure mechanisum that changes state to become solid, once applied, and is used to prevent the penetration of air, gas, noise, dust, fire, smoke or liquid from one location through a barrier into another.

  • Sealants are used to close small openings that are difficult to shut with other materials, such as concrete, drywall, etc.

  • Desirable properties of sealants include insolubility, corrosion resistance, and adhesion. Uses of sealants vary widely and sealants are used in many industries, for example, construction, automotive and aerospace industries.

  • Uses of sealants vary widely and sealants are used in many industries, for example, construction, automotive and aerospace industries.

  • The main difference between adhesives and sealants is that sealants typically have lower strength and higher elongation than do adhesives. Since the main objective of a sealant is to seal assemblies and joints, sealants need to have sufficient adhesion to the substrates and resistance to environmental conditions to remain bonded over the required life of the assembly.

  • The adhesives and sealants industry's development can best be explained by the economy-wide transition from conventional materials (glass, stone, wood, and metal) to lighter and more economical resources, mainly petroleum-based plastics.

  • The fast growing emerging markets, such as China and India, are supporting a significant portion of the incremental demand for adhesives and sealants globally.

  • The demand recovered in most European countries in 2010. In Western Europe growth was triggered by industrial applications more than by construction activities. The market recovery has been supported to a large extent by the production of capital goods and consumer durables exported to Asia and other parts of the world.

  • Sealants have grown in sophistication in recent years as the markets have grown more demanding. The emergence of new materials has spawned a range of sealant types as varied as their applications.

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