Industrial sealants can be
crucial in filling gaps, voids, etc. and
seal joints. These can make the space between two mating parts, arising out of
dimensional variation to be void free. Industrial sealants prove crucial to the
construction industry, and these must
always be purchased from an authentic and
reputed industrial
sealants supplier. Simultaneously, various other considerations should be given due thought like:-
Sealant material
While selecting any industrial sealant, it is important that
its various specifications are considered
like the stability, bond strength, as well as suitability for its intended application. This cannot be
overlooked as it has profound implications. Some of its leading groups
of sealants are acrylic, elastomer, epoxy, phenolic, polymer, silicone and wax.
They each have different specification and characteristics and are accordingly used in various applications.
Organic vs. inorganic
After the first consideration, one needs to choose between
the organic or the inorganic version. Organic sealants have a chemical polymer backbone made up of the organic hydrocarbon based polymers. Few
examples of such organic products are polyurethane, acrylic, polysulfide and
polyether sealants. These have excellent sealing properties which include
adhesion and movement. However, these are vulnerable to getting degraded by the
harmful UV rays if exposed to the sun. They tend to harden a finally develop a
crack owning to the normal joint movement between parts or sections of a
building. This is the biggest drawback of
organic sealants which eventually causes the adhesive failure.
Inorganic sealants lack a carbon-based
chemistry and are crafted of materials
like the silicates, aluminates, and
sulfates. The biggest advantage of silicone sealants and other inorganic
sealants is their application in areas involving UV, electrical and fire
exposure.
One component or two
component systems
Industrial sealants are also
divided into one component or two
component systems. The former sealants are those who have a single resin that hardens utilizing the surface
moisture, applied primer or even the heat. Two component sealants have two or
more resins which are often mixed well together just before application. Here
the second resin chosen is hard enough to work like a hardener or catalyst and
performs to cure or crosslink the sealant.
