Solbin® AL

SOLBIN AL – Shin-Etsu MicroSi

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Solbin AL is a thermoplastic resin consisting of polyvinyl chloride (VC) , polyvinyl alcohol (VA) and polyvinyl acetate (VAc). Due to its lower molecular weight than Solbin A, it provides lower solution viscosity.

Links to Safety Data Sheets

SOLBIN AL 3.2019 (87.61kB)

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Solbin® AL (87.60kB)

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Links to Technical Data Sheets

Solbin® AL (152.39kB)

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Product Description

Product characteristics

  • Soluble in ketones, esters and chlorinated hydrocarbons. Use aromatic hydrocarbons as diluent solvents. Insoluble in alcohol, oil and aliphatic hydrocarbons
  • Films made from Solbin AL are tasteless, odorless, and unaffected at room temperature by alkalis, mineral acids, alcohol, oil and aliphatic hydrocarbons.
  • It combines high water resistance with low moisture permeability and low water absorption.
  • Offers superior mechanical properties such a anti-abrasion, flexibility and non-tackiness.
  • Imparts good, stable dispersibility to pigments and magnetic powder in paints and in dried layers even at high packing density.
  • Provides a wide choice for coating formulations due to its compatibility with various resins including polyurethane, epoxy resins, NBR, isocyanate, etc.
  • Reacts with organic groups such as isocyanete to form cross linking.

 

General Properties

Attributes Test Results
Appearance Light yellow powder
Solution Appearance “Colorless, Transparent”
Grain Size Passes wholly through 28 mesh sieve
Bulk Density (g/cc) ~ 0.7
Composition (weight % )
VC 92.5 ± 1.5
VAc 2.5 ± 1.5
VA 5.0 ± 0.5
Degree of Polymerization 300 ± 30
Molecular Weight Mn 2.2 X 104
Glass Transition Temp. (°C) 76°C
Solution Viscosity (mPa·s)(MIBK/TOL. 20% @25°C) 70 ± 20
Applications
  • Printing Ink – Solbin AL is used for coating and gravure printing ink, adding gloss to create a better decorative effect.
  • Metal Container Paints – Solbin AL is used for lining food and beverage containers. Its anti-corrosiveness makes it an excellent choice for use in container lining, including applications for medicines and cosmetics. It produces a tough film that makes it ideal for coating steel and galvanized tin plates that will be fabricated later.
  • Paper and Textile Coating – Solbin AL provides a water-proof protection, adding gloss for a better decorative effect.
  • Magnetic Paint-Due to Solbin AL’s excellent dispersing ability for inorganic pigments such as magnetic powder, it is used as a binder and dispersing agent for magnetic paint used to produce video tapes, audio tapes, mag- netized cards and floppy disks.
How to Use
  • To ensure Solbin AL quickly goes into solution it is recommended to disperse it into a weaker solvent such as toluene and xylene then blend with the stronger solvent.
  • Solbin AL is usually dissolved in a combination of both ketone (e.g. MEK and MIBK) and aromatic hydrocarbon (e.g. toluene and xylene) solvents in equal proportions, to produce a solution of 15%- 20% concentration by weight. For coatings on a porous substance, (paper or cloth), faster drying solvents such as MEK and acetone are recommended.
  • For Spray coating, MIBK is used. For baking on metals, ketone with a high boiling point such cyclohexanone is used. For roll coatings, cyclohexanone or isophorone are sometimes used. Heating to around 50°C and sufficient agitation are required to speed up dissolving.
  • In order to provide proper flexibility, resilience and adhesiveness to film, 5 – 20 PHR of plasticizer are added. The kind and amount of plasticizer to be added can be determined in the same manner as in the method of blend- ing polyvinyl chloride resins
  • Most common pigments can be employed.
  • Stabilizers against heat and light are used, as with conventional polyvinyl chloride resins. The addition of about 0.2% propylene oxide, in this case, can prevent the corrosion of containers and change in paints in storage.
  • Any method of coating, including spraying, roll coating and others, may be used. For roll coating, a solution of 200 – 400 seconds in Ford Cup No.4 viscosity should be used. For Spray applications a solution of 60 – 80 seconds Ford Cup No.4 viscosity should be used at an air pressure of 98 – 100psi and a liquid pressure of 20 – 30psi.
  • Solbin AL does not usually provide satisfactory adhesion through air drying alone. The following chart provides the degree of adhesion to various surfaces by air drying
  • Short-time baking at 170-190°C will significantly improve adhesion and surface gloss. When primers are used, sufficient adhesion may be obtained without baking

Solbin Printing Ink

Solbin Coating & Paint

Solbin - Adhesive

Note: The values in the table are representative values, not standard values.