Desiccants such as Silica gel are commonly used inside a package
to absorb moisture. These are often ineffective, and at times
the cause rather than prevention, of corrosion of the packed item.
Silica gel has properties by which it attracts moisture. Lower
nighttime temperatures cause moisture to condense. During the
day, this condensed moisture is released back into the atmosphere
within the package due to the higher due to the higher daytime
temperatures thus adding to the humidity within the package.
Suprabha approaches this problem by providing two varieties of
desiccants, namely the VCI Rustopowder and Dehumidifier. Former
provides positive rust prevention by treating the atmosphere and
the later absorbs the moisture and keeps the same under control.
RUSTOPOWDER
On vaporisation VCI molecules migrate and then condensate,
forming a monomolecular film on the metal surface. The VCI molecules
are attracted towards metal surfaces, they protect every area
of metal components including cavities and recessed areas.
SPECIAL FEATURES
• In case the package is breached and the atmosphere within
the package is exposed to the outside atmosphere, the monomolecular
VCI layer remains undisturbed due to the continuous vapour action
• The VCI layer of items shipped need not be removed, and
the parts, components or assembled units are ready for final assembly
on delivery, since no degreasing or cleaning is necessary
• No regeneration is required; effective up to 24 months
• VCI does not affect the functioning of most electrical
and electronic components
• VCI powders protect both ferrous & non-ferrous metals
• Usage of 5 gm/C.ft is more than adequate to provide effective
protection
DEHUMIDIFIER
It is an activated metal compound, which is an excellent absorber
of moisture, and does not get as soaked as to ooze the absorbed
moisture when saturated. It is pH near neutral range thereby having
no adverse effect on metals. The right quantity of this desiccant
ensures humidity free dry packing
SPECIAL FEATURES
• Treats the entrapped moisture inside the package
• Only 20 gm/C.ft required
• In combination with SUPRABHA VCI 512 RUSTOPOWDER / VCI
552 RUSTOTABLETS, SUPRABHA DHF 555 can be used for long term rust
prevention for a period of 18-24 months
