Stainless Steel Linings
There are two main types of stainless steel lining: flexible and
solid, these come in various diameters to meet the customer's
requirements. At the time of installation it is recommended that
both types are back-filled with a dry insulating material.
The advantage of this is not only to reduce condensation but
also to reduce thermal shock. Stainless steel linings come with
a ten year 'reducing' warranty.
Cast In-Situ Linings
The materials used in Cast In-Situ linings are extremely durable
in terms of their resistance to both natural weathering and flue
conditions.
The blend used is tested to B.S. 1902 ASTM standard C401 Class
N and has a maximum service temperature of 1200¡ÆC.
After thoroughly cleaning the flue a former is inserted and inflated
to the correct size.
Openings are made in the chimney wall to position the former.
The base of the flue is sealed and the blend pumped into the space
between the former and the flue wall.
Once the blend has set the former is deflated and removed, leaving
a smooth internal flue surface. The lining has an expected life
span of some 60-70 years. Installation is to the NACE code of
practice.
The system will make your chimney stronger than new, curing any
damage such as joint leakage and general deterioration of the
brickwork and will prevent further deterioration.
A typical example of the Cast In-situ
lining
The Putzmeister SP11 is a typical machine
that we use for both mixing the lightweight concrete and then
for pumping it up into the chimney flue
Reflucoat & Ceramacoat
Two different types of lining material that have a similar application
technique. Both are applied to the internal flue surfaces under
pressure - this seals all openings, fissures, cracks and corners
so that the whole flue has a smooth surface.
CERAMACOAT is a blend of high quality refractory aggregates,
silicates and bonding agents. CERAMACOAT is air setting and will
give a hard coating when dry; normally overnight is sufficient
setting time to produce the required finish.
REFLUCOAT has been formulated from a blend of high quality fillers
and bonding agents. It is air setting and will give a hard coating
when dry, becoming a dense vitrified coat at temperatures above
800¢ªC.
