Industrial Sealants

Industrial sealants are liquid and viscous compounds that are used to contain fluids, prevent leaks, and prevent infiltration of unwanted material. Industrial sealing products may also include compounds for filling gaps or seams. Many industrial sealants are available in a variety of compositions and forms. These include liquids, aerosols, powders, and pastes. Specialized and proprietary products are also available.

Liquid, aerosol, and powder sealants are three main types of industrial sealants. Liquid industrial sealants are flowing liquids with low-to-moderate viscosities. Aerosol sealants are industrial sealants that are applied by spraying or atomizing a liquid and projecting the droplets onto a surface. Adhesives from aerosol-based industrial sealants are dispensed from an aerosol can or spray gun. Powder industrial sealants are finely-divided particulates. Examples include novolac phenolic resins.  

Pastes are industrial sealants that require a trowel or gun for applying and pressing into place. Generally, industrial sealants in paste form are more “workable” and forgiving than fast-setting liquids and aerosols. Pastes include mastics, caulk or grout, filling compounds, gels, and putties. Mastics are highly-viscous industrial sealants that are applied by trowel to give thick glue lines with gap-sealing properties. Typically, mastics are used to bond tiles to sub-flooring and to fill gaps or irregularities in a surface before tile or other materials are applied. Caulks, grouts, and joint compounds have a lower viscosity than mastics. Consequently, these industrial sealants allow the material to be pumped into joints or cracks for sealing or repairs.  Most caulks consist of a flexible material. Grouts are industrial sealants that based on thin-set inorganic mortars, polymers, or resin binders. 

Filling compounds, gels, and putties are additional types of industrial sealants. Repair and filling compounds are resin-based industrial sealants that are used to fill-in large gaps, holes, or cracks in a surface. Repair compounds should have a high degree of structural integrity and good adhesion to substrates. Gels are industrial sealants in the form of a high-to-moderate viscosity liquid. This type of industrial sealant provides greater run resistance during application. Putty or plastic industrial sealants have a very thick consistency that can be molded or formed into place.

• Handbook of Adhesives and Sealants, Volume 2
  Handbook of Adhesives and Sealants, Volume 2 Taking a thorough and comprehensive look at all aspects of adhesives and sealants, this book discusses the chemistry behind them, the many industrial...
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Part Numbers for Sealants