TECHNICAL DETAILS OF SHREECRYL SS-505 (PRS Grade)

Rigid PVC Precoating, PVC, BOPP, (Calilac 13110R Polyester, Cellophane,
Alu, -Calico Chemical UK) Foam, Tapes, Stickers, decorative Film backing.)

PHYSICAL APPEARANCE SS-505 (PRS Grade) is a crystal clear solution of medium, free flowing
viscosity without any type of visible particles.
CHEMICAL NATURE It is a polymer of more than three very active acrylic monomers in solvent phase by strict control of the rate of reaction between the very active monomers by means of controls in the hands of highly experienced Technologists.
NON - VOLATILES 50 ± 1 %
pH VALUE of Water product : 4 - 6 boiled in water 1 : 1 by weight and the filtered water is cooled and pH is observe
Free monomer after : Below 0.5% neutralizing acidity of solvent and other constituents
Film on glass Very clear without any particles / coagulam
Tack on film Excellent
Adhesion Value at 30 gsm Excellent average 1800gms/ inch - maximum 2500gms/ inch
Adhesion value at 30 gsm Drop in adhesion value is less than 10% of its initial value.
after 7 days at 30ºC
Flow of product when freely Very free flow (no gells or lumps) poured
Viscosity by Brookfield RVT Model Sp.No.4/5, at 20 rpm at 30ºC 15 - 40 poises


COMPATIBILITY : Shreecral SS-505 (PRS Grade) is compatible with solvents like Ethyl Acetate, Isopropyl Acetate, Butyl Acetate, Toluene, Xylene to some extent with ketones like acetone, MEK, MIBK

SS-505 (PRS Grade) 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.

SS-505 (PRS Grade) is compatible with polyterpene or hydrocarbon tackifiers (Softening point 110-115ºC) at 1-2% by weight dissolved in toluene (50:50) by weight)

APPLICATION TECHNIQUES
For continuous applications like roll / roll sticker manufacture, Rigid PVC precoating for later application to plywood for CTV cabinets, the Product is applied by roller. For small jobs, the thinned resin can be applied by brush to. But the brushes must be cleaned immediately after use.

USE OF SHREECRYL SS-505 (PRS Grade)

1) For the manufacture of tapes like BOPP/PVC/PET/CELLOPHONE/PAPER where permanent tack and high peel strength are essential.
2) The latest fashion of maufacture of colour cabinet is Rigid PVC precoated by silicone release paper, here the PVC is coated on roller assembly with 30-35 gsm of resin on dry basis.
3) SS-505 is non-toxic after the film is dry. Hence it is being use for making PET based Band Aids. Similarly due to non-toxicity and very negligible free monomer content. SS-505 is safe for use in sanitary napkins/personal products.
4) SS-505 when mixed with primary /secondary/cyclic amines in the ratio 100pbw SS-505 0.005-0.05pnw of these amines gives a thermo setting composition for permanent bonding of plastic to plastic, plastic to any hard surface.
5) Used in prosthesis.
6) Used for foam (all types) coating for insulation purpose in all industries.
7) As SS-505 is totally resistant to water, it finds extensive uses in industrial coating where water resistance is a priority.

ADVANTAGES OF SHREECRYL SS-505 (PRS Grade)

1. Being manufactured under the personal supervision of highly qualified and 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 polymerized hapzardly just to get viscosity.
3. The product has better shelf life.

STORAGE OF SHREECRYL SS-505 (PRS Grade) 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 stringent controls by higher skilled technologists.

2) Check the peel strength for every lot/batch before and after exposure to high temperature (70 - 80ºC)

3) Check the supply for any micro-gells, which can cause non-uniform application tack.

4) When mixed with amines, the pot life of mixture is 8 - 12 hours only. So mix only requisite quantities.

5) Do not keep the drum/carboys filled with SS-505 open near heat or flame. SS-505 is highly flammable due to ethyl acetate.

6) As it is a solvent based system, shelf life is not warranted above 6 months. Hence, no complaints what so ever will not be entertained after 6 months from the date of delivery.

PACKING SIZE : 200 Kgs, 50 Kgs and 5 Kgs

Note: The above data, suggestions and recommendations are given in good faith without any guarantee whatsoever.

 
Site maintained and developed by Aniktantra. Copyright 2003, All Rights Reserved