Superchlon 2319S

1. Introduction
SUPERCHLON 2319S is a newly developed product specially introduced into PP primer market, which provide better adhesion for the higher molecular weight compared  to  other  grade.  It  is  also  suitable  for  adhesive,  ink  and  paint application  for  the  good  adhesion  to  ABS,  polycarbonate,  nylon  as  well  as polypropylene.

2. General properties
Appearance Pale-yellow to light-brown pellet
Odor A little resin odor
Free chlorine None
Good solvents Toluene, Xylene (aromatic hydrocarbons), Cyclohexane,
Methylcyclohexane (alicyclic hydrocarbons)
Aliphatic hydrocarbons (n-hexane etc.), alcohols (IPA,
Butanol  etc.),  ketones  and  esters  can  be  used  as  the diluent.

3. Typical specification
Solid content (%) 100
Chlorine content (%) 18.5 - 20.5
Viscosity (mPa•s at 25°C) 30 - 100
(NV: 20wt%, Toluene / Cyclohexane / IPA = 64 / 33 / 3)
Color number (Gardner) 6 and below
These properties are typical of average lots. Nippon Paper makes no representation that the material in any particular shipment will conform to the listed properties.

Handling Instruction : The solution of this product has a nature to cause viscosity increase, gelling and fine particles in winter season, but in terms of its performance, this will not be a issue if warm up to 40-50°C (104-122°F) again when using.

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SUPERCHLON  2319S
 

Technical infomation

4. Coating method

1. Wash PP panel with IPA

2. Apply “Superchlon 2319S” solution to the PP panel (5-10 μm in thickness)

3. Apply base coat paint (10-15 μm in thickness)

4. Apply clear coat paint (two package polyurethane type)
(30-40 μm in thickness)
5. Baking (30 minutes at 80°C)

6. After leaving the coated panel 3 days at room temperature, tested its
performance.

5. Results
Test items Result
Adhesion Excellent
Water immersion resistance Excellent
Boiled water resistance Excellent
Humidity resistance Excellent
Gasoline resistance > 4 hours

* Test methods
(1) Adhesion
On the  coated  surface,  a  checkered  pattern with  100  squares  (1  mm)  was  cut through the coated layer. Then a cellophane adhesive tape was tightly applied to the checkered pattern. The soaked surface was checked for peeling after the tape was removed at an angle of 180°. This was tried ten times.

(2) Water immersion resistance
After dipping the coated panel in a hot water (40°C) for 240 hours, the coatings were
scratched with X marks through the coated layer. Then a cellophane adhesive tape
was applied to the panel. Afterwards, the tape was peeled off ten times at an angle
of 180°.

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SUPERCHLON  2319S
 

Technical infomation

(3)Boiled water resistance
After dipping the coated panel in a boiled water  (98°C) for  2 hours, a checkered pattern  with  100  squares  (2  mm)  was  cut  through  the  coated  layer.  Then  a cellophane adhesive tape was tightly applied to the checkered pattern. Afterwards, the tape was peeled off ten times at an angle of 180°.

(4)Humidity resistance
After the coated plate was left out at 50℃ and under an atmosphere of 98% relative humidity for  240 hours, the coatings  were scratched with X marks  through the coated layer. Then a cellophane adhesive tape was applied to the panel. Afterwards, the tape was peeled off several times at an angle of 180°.

(5) Gasoline resistance
After dipping the coated panel into regular gasoline, checked the period of time spent the coated edge was peeled off about 1 mm.