| The fire-resistant intumescent coating is a commonly
used construction material in Europe. It is a thin film, roughly in 1-3mm
thikness(thickness). But in case of a fire it will expand by 20-50 times
creating a thermal barrier and protecting the steel frame from collapsing.
The thin coating configurationoffers(configuration offers) a stylish appearance
and design flexibility as well as an ease of application. Its significant
advantages allow fire-resistant intumescent coatings to be applied to exposed
steel frame surfaces often found in recent architectural styles used for
atriums and showrooms where conventional fire-resistant coatings pose many
difficulties. Unlike conventional fire-resistant intumescent coatings, Nippon Paint's
fire-resistant (1 hour only) intumescent coating is an organic solvent-based
coating made from special acrylic resin, usually applied with a special
air-less coating machine that delivers an attractive, uniformly smooth
appearance. Previously, with conventional fire-resistant intumescent coatings,
special certification had to be obtained for each building through testing
by ISO834 and, furthermore, such coatings had to be used in combination
with fire-resistant steel to create fire-resistant interior and exterior
structures. Nippon Paint has gained considerable expertise in the application of
fire-resistant intumescent coatings by handling several large-scale projects
which were acclaimed for the ease of the coating operation and the attractive
finish that resulted. For coatings that require special certification,time-consuming
certification procedures and costly maintenance and management created
difficulties for use with general structural steel materials. Recently,
Nippon Paint has received general certification according to the ISO834
standard for its fire-resistant (1 hour only) intumescent coating specified
for use in indoor structural steel materials. This makes it easier for
customers to employ a fire-resistant coating only by receiving general
certification as specified in ISO834 and undergoing inspection by a qualified
building inspector. Unlike conventional coating materials, the fire-resistant coating's
thickness can be varied to match the thickness of structural steel. Based
on many years of research, Nippon Paint's fire-resistant intumescent coating
features an extremely thin configuration that can satisfy the most exactingrequirements
of building owners and architects in terms of an ease of application,
finish and durability. This coating's superb quality demonstrates all
the impressive design qualities of steel frames. "Taika litt,"("Taikalitt,") Nippon Paint's foaming fire-resistant coating offers a smooth and attractive finish comparable to a conventional coating finish, with the important advantage of a key ingredient, ammonium polyphosphate, which foams at high temperatures to form a heat-insulation layer. The coating system consists of a undercoating (anti-corrosion) layer, foam layer and top coating layer. When exposed to fire, the material starts to foam when the atmospheric temperature reaches 200 (250) to 300 °. The foam expands to a volume 25 to 50 times larger to provide superior heat insulation. |
|||
| Fire-resistant
coating mechanism Heating test for fire-resistant coating applied to H-shaped column |
|||