Page 65 - Handbook of Adhesives and Sealants

An Introduction to Adhesives and Sealants 33

TABLE 1.9 Typical Applications for Sealants 10
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-wall joints, sound deadening, tapes
Curing Home sealants, repair of lock-strip gaskets, 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
Acrylics
Nonplasticized Water-based for interior-use joints on wallboard
Plasticized Caulks for exterior joints on low-rise housing, with good
movement capabilities, excellent weathering
Solvent-based Exterior joints on high-rise construction, around doors and
windows with low movement
Block copolymer
Solvent-based For low-rise buildings with good movement
Hypalon
Solvent-based Exterior joints on high-rise construction, around doors and
windows
PVC-coal-tar As a hot melt on airfield runways and highways
Polysulfide
One-part High-rise building joints
Two-part High-rise building joints, aircraft fuel tanks, boating, insulating
glass sealant for remedial housing; with coal tar for airport
aprons
Urethane
One-part High-rise buiding joints
Two-part High-rise building joints, insulating glass sealant, with coal tar
and asphalt for membrane waterproofing compounds
Silicone
One-part Low and medium modulus for high-rise 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
Two-part Mostly in-plant use of 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