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Potassium Silicate
Based Cement (Silicor-501)
Silicor-501 is a
self hardening silicate cement mortar based on
Potassium. It is supplied as a two components system
Viz, Silicor-501 solution and Silicor-501 powder.
Both powder and solution are mixed clean to result
mortar. Since pot life of the mixed mortar is very
much limited they have to be mixed in small
quantities. The cement is used for bonding of
A.R.Bricks, tiles and stone wares etc. for tank
linings and floor surfaces for resistance to all
acids excluding hydrofluoric acid and fluoride
salts.
Physical
Properties
SILICOR-501
Tensile strength
Kgs./Cm
220-25
Compressive Strength Kgs./Cm2
150-170
Flexural Strength Kgs./Cm2 40-45
Bonding Strength Kgs/Cm2 5-6
Work time at 272C Kgs. /Cm2
Min.20 mts.
Temperature Limit 600oC
The tests are
conducted as per IS:4456 (Part I) and the result
confirms to Is:4832 (Part II)
Instruction
for use
SILICOR-501 cement
mortar is supplied in two components viz. Powder and
solution as stated above. Both components should be
used neat without mixing any foreign materials. The
solution should be taken in a clean enameled basin
and powder should be added slowly. The reverse should
never be adopted. The ratio of powder to liquid
should be kept at 3:1. All lumps in the powder
should be broken thoroughly. Slight adjustment in
the ratio will not make much difference in the
properties. It is however advised to mix up the
components in the proper ratio to achieve optimum
properties. The pot life of the mixed mortar is
very limited, hence small quantity sufficient for
about 15/20 minutes should be mixed at a time. The
mortar is sensitive to temperature. In summer the
working time is further reduced.
After
Treatment
In order to obtain
optimum chemical resistance, an acid treatment is
essential. A suitable acid treatment agent is 20%
alcoholic sulfuric acid. (Mixture of 20 parts, by
weight, of water plus 20 parts, by weight , of
sulfuric acid 96% plus 60 parts,by weight of
ISO Propyl Alcohol). Lining and coverings, protected
with silicate cement should not be put in to
operation, not earlier than 8-10 days of completion
of the job.
Standard
Packing
Powder :50 Kgs in
Polythene Lined Bags
Liquid :250 Kgs.
in Steel drums
Storage
Life
Both powder and
liquid , if kept away from sun and cryogenic
condition, can be stored for a period of 24 months.
Precautions
Both SILICOR-501
powder and solution should be stored in dry place
away from sunlight in sealed bags/drums
The drums and bags
should be closed properly after using the material
from the packings.
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