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COMPATIBILITY : Shreecryl SS-525 is compatible with
solvents like ethyl acetate, isopropyl acetate, isopropyl
acetate, butyl acetate, toluene, xylene, to some extent
with ketones like acetone, MEK, MIBK.
SS-525
can be plasticised (low%) with DBP, DOP for the manufacture
of mosquito, cockroach masks. Oil / Solvent soluble colours
can be blended for coloured tapes / stickers. Noncompatible
with alcohols, water, pigments.
APPLICATION TECHNIQUES
For continuous applications like roll/roll sticker manufacture,
Rigid PVC precoating for later application to plywood for
CTV cabinets, vehicles the product is applied by roller.
For small jobs, the thinned resin can be applied by brush
too. But the brushes must be cleaned immediately after use.
Closed cell PE, PP, PU, Foam precoating for Automobile Industry
by roller coating or knife coating.
USE
OF SHREECRYL SS-525
1.
For the manufacture of tapes like BOPP/PVC/PET/CELLOPHANE/PAPER
where permanent tack and high peel strength, resistant to
kerosene, diesel, petrol is essential.
2. The latest fashion of manufacture of colour TV cabinets
with precoated and protected by silicone release paper Rigid
PVC. Here the PVC is coated on roller assembly with 30 -
35 gsm of resin on dry basis.
3. SS-525 is non-toxic after the film is dry. Hence it is
being used for making PET/PVC based Band Aids. Similarly
due to non-toxicity and very negligible free monomer content.
4. SS-525 when mixed with primary/secondary/cyclic amines
in the ratio 100 pbw SS-525, 0.005-0.05 pbw of these amines
gives a thermo setting composition for permanent bonding
of plastic to plastic, plastic to any hard surface.
5. SS-525 film being resistant to kerosene, diesel &
petroleum, has vast potential for Automobile Industry to
fix PVC sheets, rexin, foam in Bonnets, etc. Due to its
cross-linking property, it has good heat resistance.
ADVANTAGES
OF SHREECRYL SS-525
1.
Being manufactured under the personal supervision of highly
qualified & experienced persons, the product has excellent
consistency regarding viscosity, strength, clarity, molecular
weight distribution and flow properties.
2. Due to uniform copolymerisation, the shelf-life is longer
compared to a product polymerisation hapzardly just to get
viscosity.
3. The product has better shelf life.
STORAGE OF SHREECRYL SS-525 (affected by high temperatures during storage)
As the product contains 50% or more Ethyl Acetate (Volatile Solvent with B.P. 77.1ºC),the following precautions during storage are very necessary :
1) Keep the drums / carboys in air circulating rooms / storage facility with good ventilation & not under sun.
2) Away from heat & fire.
3) Store below 30ºC. It is advisable to store 25ºC or below to enhance shelf life.
4) If unused for 10-15 days, open top lids & allow solvent vapour to escape. Add 2-3 kgs of Ethyl Acetate & roll the barrels and then store them.
5) At temperatures above 30-35ºC solvent evaporates & the product may thicken. To avoid gelling follow steps 1-4 above.
DO'S
& DO NOT'S
1.
Do not mix any other inferior product available in the market
under disguise of any acrylic copolymer in solution form.
As the copolymerisation reaction is very sensitive, narrow
range of molecular weight distribution is obtainable only
under stringent controls by higher skilled technologists.
2. Check the peel strength for every lot/batch before and
after exposure on high temperature ( 70 - 80ºC).
3. Check the supply for any micro-gells, which can cause
non-uniform application and later non-uniform tack.
4. Do not keep the drum/carboys filled with SS-525 open
near heat or flame. SS-525 is highly flammable due to ethyl
acetate.
5. As it is a solvent based system, shelf life is not warranted
above 3 months. Hence, complaints what so ever will not
be entertained after 30 months from the date of delivery.
Packing
Size: 200 Kg., 50 Kg. and 5 Kg.
Note:
The above data, suggestions and recommendations are given
in good faith without any guarantee whatsoever.
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