Ultraseal India sells a range of patented impregnation
sealants. The latest generation of sealants used
are the Thermocuring Methacrylate range.
Ultraseal PC504/66I and the new range of Ultraseal sealants
under development have been formulated for components
which operate at elevated temperatures. They have
excellent stability at elevated temperatures.
Ultraseal sealants polymerize when exposed to a
temperature of 90 deg. C (194 deg. F) for 10 minutes.
Performance Sealing
As a guideline Ultraseal series sealants will
fill porosity of up to 0.30 mm (0.012 in) dependent
on the thickness of the relevant wall section.
The effectiveness of the Ultraseal series sealants
has been proved under laboratory conditions in
a series of tests using US MIL spec sintered test rings. In each case the ring was approximately
20 per cent porous, which included fine and gross
porosity.
After treatment with the Ultraseal series of sealants
the test ring were airtight when pressurized to
3.4 bar (50 ps). Independent tests conducted on
various castings used in a wide range of applications
have confirmed the superior sealing performance
of the Ultraseal Sealants.
Sealant Performance at Elevated
Temperatures
The Ultraseal series
of sealants have been specially developed to achieve
and maintain excellent sealing results at elevated
temperatures. After impregnating the US MIL spec sintered test rings with the Ultraseal series sealants,
the rings were subjected to 200° C for 24
hours. When pressure tested, these rings exhibited
superior sealing results in comparison to that
obtained from rings impregnated with other methacrylate porosity sealants. The high temperature resistance
properties of Ultraseal sealants make them the
first choice of major automotive OEMs for impregnation
of aluminium cylinder heads.
Drainage
During laboratory
checks on the ease with which sealant drained
from an aluminum test piece, the performance of
Ultraseal sealants was set as a standard with
a drainage factor of 1. in the same test Ultraseal
sealants recorded only 0.83 Because of its improved
drainage in practice, Ultraseal sealants will
exhibit very low material consumption when sealing
porous components.
Washability
All Ultraseal series sealants wash away easily
with clean cold water. This excellent washing
performance facilitates a high standard of cleanliness
on components, including machined surfaces and
tapped holes.
Chemical resistance
Cured Ultraseal sealants are thermoset, cross
linked material and therefore have excellent chemical
resistance to attack from water, motor oil, antifreeze,
transmission fluid, hydraulic oil, petrol and
many other chemicals. "We would be pleased
to advise on suitability of our sealants for your
application".
More
information
Detailed technical data sheets are available
from Ultraseal India on request.
The
Ultraseal Range of Porosity Sealants