PRODUCTS
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Silica Gel
Pouches / Sachets
Silica gel sachets or bags, are simply flexible
'containers ' of silica gel. The sachet material has to be robust
and capable of withstanding normal handling whilst importantly being
able to breathe. This means that water molecules can pass through
the material and be adsorbed by the silica gel. Standard sachet
materials are tea-bag paper, fabric, cotton or Tyvek™. Some sachets
have heat-sealed seams, others are sewn.
We produce a range of standard size silica gel sachets using
non-indicating (white) or indicating (orange/green, orange/colorless
or blue) silica gels. In the latter case, the colours of the gels
are visible through the sachet paper or fabric. Self-indicating
silica gel sachets are often useful in test situations, to confirm
the suitability of the sachet size chosen, or in cases where an item
is frequently inspected and the sachet can be replaced if it has
become exhausted.
Stock sachets are as follows :
Sachets made in a heat-sealed non woven paper
Non-Indicating And Self-Indicating.
Small sachets are manufactured as standard in a plain paper made
from a blend of top grade manila hemp, cellulose and thermoplastic
fibres. All sachets are printed Silica Gel Do Not Eat.
SACHET WEIGHT
SACHET SIZE
½ GRAM
38 x 30 mm
1 GRAM
48 x 30 mm
3 GRAM
50 x 60 mm
5 GRAM
65 x 60 mm
10 GRAM
83 x 60 mm
Small silica gel sachets can prevent moisture damage to electrical
goods and electronic components (internally and externally),
scientific and optical instruments, communication equipment,
metallic parts, leather goods, tools and many other small to medium
sized items in use, store or transit.
Sachets made in a heat-sealed non woven fabric Non-Indicating
And Indicating.
Medium sized sachets are manufactured as standard in a heat-sealed
non-woven fabric made from a 100% viscose fibre with an acrylic
binder and polyamide coating. All sachets are printed Silica Gel Do
Not Eat and usually with their weight.
SACHET WEIGHT
SACHET SIZE
25 GRAM
110 x 80 mm
50 GRAM
130 x 80 mm
100 GRAM
165 x 80 mm
250 GRAM
200 X 125 mm
500 GRAM
240 X 125 mm
Medium sized silica gel sachets can prevent moisture damage to
larger electrical/ electronic items, metallic components and
fabrications, contents of export packing cartons or crates and
hygroscopic powders.
Sachets made in a stitched non-woven fabric or cotton.
Non-Indicating and Indicating .
The 1kg sachet is stitched in a non-woven fabric made from a 100%
viscose fibre with an acrylic binder. The 2.5 kg sachet is made as
standard in cotton because of its large weight.
All sachets are printed Silica Gel Do Not Eat along with their
weight.
SACHET WEIGHT
SACHET SIZE
1 KG
320 x 175 mm
2.5 KG
400 x 265 mm
Large silica gel sachets can prevent moisture damage to items in
transit in packing crates and shipping containers, large machinery
and enclosed vessels such as tanks or pipes.
All sachet sizes are approximate
Sachets in Tyvek™
We can make many different sized sachets using a TyvekTM material.
This is a very strong dust and lint free material which is ideal for
sensitive applications.
Which Size Sachet To Use?
A silica gel sachet is always more effective in an enclosed
environment. A physical barrier will discourage water vapour from
continually entering such an environment, leaving the finite volume
enclosed to be protected by the silica gel.
A general rule of thumb in a 'hermetically sealed' environment, is
that 5 grams of silica gel are required per cubic foot of enclosed
volume (or 170 grams per cubic meter).
It is often prudent to err on the side of caution and use the
nearest standard size sachet over the amount of silica gel that is
theoretically required. For large volumes, using a few well spaced
smaller sachets will reduce humidity levels faster than if using a
single large sachet.
Often, environments cannot be considered 'hermetically sealed',
there will be a number of factors which will increase the amount of
silica gel that is needed. Please read Using Silica Gel.
Non Standard Sizes And Special Sachets.
The above sachets represent our standard range of off-the-shelf
items. In addition to this we are able to manufacture sachets to any
other weight that meets customer requirements.
We will also manufacture totally non-standard silica gel sachets -
sachets of specific (and unusual) shape, sachets with loops or
lengths of tape attached, sachets with velcro, sachets in bandoliers
or sachets that are individually over wrapped in foil or poly
pouches. Finally, sachets can be made using a mixture of materials
e.g. silica gel and activated carbon.
Pricing And Packing.
We try and sell sachets in almost any quantity that we are asked
for. They are supplied in strong cartons with heavy gauge poly bags.
If required,
packaging can be tailored to suit individual needs
In general, non-indicating silica gel sachets are cheaper than
self-indicating sachets and to double the weight of silica gel does
not double the cost. Prices are tiered, with price breaks as
quantities increase. Often dramatic decreases in cost will accompany
increased quantities. All quoted prices include delivery, there are
no hidden charges.
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