Types of Sealant and there uses

No matter what the application, a sealant has three basic functions:

1. It fills a gap between two or more substrates.

2. It forms a barrier by the physical properties of the sealant itself and by its adhesion to the substrate.

3. It maintains its sealing property for the expected lifetime, service conditions, and environments.

More details what can be applied as sealant, where?

Typical Application Areas for Generic Sealants:

Generic Base	Typical Uses
Oil	Small wooden window sash
Oil and Resin	Metal windows
Butyl Noncuring	With polybutene for Metal buildings, slip joints, interlocking curtain walls, sound deadening, tapes
Butyl Curing	Home sealants, repair of lock-strip gasket, tapes- With resins for hot melts on insulating glass
Polyisobutylene	Primary seal on insulating glass
Asphalts	With bitumen on gutters, driveway repair; with neoprene on gutters, waterstops, and adhesives
Acrylic Nonplasticized	Water-based for interior-use joints on wallboard
Acrylic Plasticized	Caulks for exterior joints on low-rise housing, With good movement capabilities, excellent weathering
Acrylic Solvent-based	Exterior joints on Highrise construction, around doors and windows With low movement
Block-polymer Solvent- based	For low-rise buildings With good movement
Hypalon Solvent-based	Exterior joints on Highrise construction, around doors and windows
PVC-coal-tar	As a hot melt on airfield runways and highways
Polysulfide One-part	Highrise building joints
Polysulfide Two-part	Highrise building joints, aircraft fuel tank, boating, insulating glass sealant for remedial housing; with coal tar for airport aprons
Urethane One-part	Highrise building joints
Urethane Two-part	Highrise building joints, insulating glass sealant, With coal tar and asphalt for membrane waterproofing compounds
Silicone One-part	Low and medium modulus for Highrise building joints; low modulus for highways and difficult building joints; medium and high modulus for insulating glass with polyisobutylene; structural glazing; home use as bathtub caulk
Silicone Two-part	Mostly in-plant use on prefab units and insulating glass
Neoprene	Fire resistant gaskets, lock-strip gaskets, foam gaskets
EPDM	Gaskets, lock-strip gaskets, foam gaskets
Nitrile Solvent-based	For Small cracks and narrow joints
Epoxy	Concrete repair, complex beam construction; potting, molding, sealing transformers; high voltage splicing, capacitor sealant; with polymers as a concrete coating on bridges
Polyester	Potting, molding, and encapsulating

From: Hand book of Adhesive and sealants.

http://users.fs.cvut.cz/libor.benes/vyuka/lepeni/Handbook%20of%20Adhesives%20and%20Sealants.pdf

Uses by type of sealant:

 Difference between the polyurethane and silicone sealants:

Details from TR 34, industrial grade floor:

Many thanks to google.com