CHALLENGE SOLUTION THE TREMCO SOLUTION
Boston’s Logan International Airport The restaurants being featured in Vulkem 360 NF Polyurethane
has undertaken a decade-long effort Terminal A needed a waterproofing Basecoat, a low-odor, VOC-compliant,
to bring the 82-year-old facility into system under their floors that could water-cured, rapid-setting poly-
the 21st century. One of the most withstand the caustic bleaches and urethane basecoat with tenacious
significant improvements is the chemicals used during cleaning adhesion to clean and dry concrete,
Logan Airport construction of Terminal A, the first
entirely new terminal to be built since
1974 and the second largest. While
that seep through grout and tile.
To ensure ultimate protection, the
waterproofing systems at Logan
wood and metal.
• Forms a seamless, monolithic,
Boston, MA adding 25 aircraft boarding positions, Airport were required to be 50+ mils.
waterproof membrane capable
of bridging a 1/16'' crack without
the terminal will also offer more Standard systems used required three compromising the integrity of
than two-dozen concession and retail coats with two days between each and the system.
Shawmut Design & outlets to enhance the traveling
experience. Being Logan Airport’s
seven days after the third coat for a
total of two weeks, which the schedule
• Can be applied at various thick-
nesses to meet mil specifications,
Construction first truly sustainable or “green”
structure, materials used during
did not allow. sloping needs or for substrate
Tremco’s Vulkem® 360 NF/351 NF patching to eliminate the need
construction were required to have Pedestrian Deck Coating System forms for concrete repair mortars.
very low or no volatile organic a seamless elastomeric membrane • When mixed with quick-cure
compounds to maintain the indoor system that is waterproof, easy-to- catalyst, will cure in three hours
air quality. The fast-track schedule clean and resistant to caustic cleaning without pinholes or gassing.
also put rigid time constraints on chemicals. Specially formulated for
construction processes. Vulkem 351 NF Polyurethane
odor-sensitive applications, water-cured Topcoat, a two-component, no VOC,
Vulkem 360 NF Polyurethane Basecoat low-odor, aliphatic topcoat that forms
can be applied to any thickness a strong interlaminate bond to the
desired. For restaurants in Terminal A Vulkem 360 NF.
contracting with Shawmut, two coats
were applied for a total of 40 mils, • When used in conjunction with
allowing only one night between coats. recommended aggregate, creates
Vulkem 351 NF Polyurethane Topcoat a tough, aesthetically appealing,
was then applied with sufficient skid-resistant, long-wearing surface.
aggregate to form a final 15 mils and
excellent bond for the mud-based tile
bed. Water testing was done on the
third day. Instead of 14 days, the
entire process took three. Topped
with pitched mud and quarry tile
finish floors, the system was