Silica Moldable Type RS-SI Moldable0 pages

SILICA MOLDABLE
TYPE RS-SI MOLDABLE
ZIRCAR Refractory Composites, Inc. produces a comprehensive range of advanced high performance ceramic-ceramic
composites and related products. Our materials are used around the world in demanding thermal, structural and
electrical insulating applications at temperatures from 600°C(1112°F) to 1650°C(3002°F). For over twenty-five years we
have been a problem solver working with many industries to resolve their thermal management problems. We have
developed materials that have become industry standards for induction melting, forging and heat-treating applications,
investment casting, glass processing, hot pressing, as well as many high temperature electrical applications.
GENERAL INFORMATION
ZRCI Silica Moldable Type RS-Si Moldable is a wet blanket
that is a combination of high purity amorphous silica fibers
and inorganic silica binder. Upon drying Type SI Moldable
becomes a rigid structure with useful properties to
temperatures of 1100°C(2012°F).
Type RS-SI Moldable exhibits good wet handleability. It
is easily cut with scissors or a knife and can be applied
directly to equipment with complex contours. It can also
be used to fabricate flat sheets or boards. Drying can be
accomplished in an oven , with a hot air gun or torch, or
by exposure to heat in the application. Removal of water
renders Type RS-SI Moldable permanently rigid.
Type RS-SI Moldable exhibits excellent resistance to
attack by most chemicals with the exception of caustics.
It will tolerate all acids except hydrofluoric acid. It is not
wet by molten aluminum and is useful in many applications
where Refractory Ceramic Fiber is not desired.
CHARACTERISTICS & PROPERTIES
Nominal Fired Composition, wt %
SiO2
Color
Solids Content, as supplied, %
Bulk Density, dried, g/cc(pcf)
Loss On Ignition Of Dried Material, 1000°C(1832°F), %
Maximum Use Temperature*, C(F)
Melting Temperature of Fiber, C(F)
Fiber Diameter, micron
Linear Shrinkage‡,%
As supplied to dry at 105°C(222°F)
dried and fired 24 hrs. at 1000°C(1832°F)
99
White
53
0.64(40)
3-4
1100(2012)
1698(3000)
6-9
0-1
5-7
* Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the material
experiences.
‡
Properties expressed perpendicular to thickness.
ZIRCAR Refractory Composites, Inc.
P.O. BOX 489, FLORIDA, NY 10921-0489
Tele: (845) 651-2200, Fax: (845) 651-1515
e-mail: sales@zrci.com
Home page: http://www.zrci.com
Technical Data
Bulletin No. ZRCI-815
July 2005
This information, which is subject to change, is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. It is not to be understood
as permission or recommendation to practice a patented invention without a license and the user should determine whether relevant patents exist.