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1201 Polyester Modified Silicone Resin
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1. Synonyms:
2. Properties and Uses:
it is a polyester modified polyorganosiloxane resin
solution, with excellent resistance to high temperature, electric
insulativity and moistureproof performance, resistance to chemical
corrosion, low solidifying temperature, good drying performance and low
foam when dipping, used to produce heat-resistance covering paint and
used in dipping H-grade dynamo, electric appliances and transformer
coil.
3. Specifications:
| Appearance |
yellow to brown uniform liquid,
without mechanical impurity |
| Solid content
(180oC,24hr.) |
Min. 50% |
| Viscosity (25oC,
gel time,) |
12~20 mm2/s |
| Drying time (200oC) |
Max. 1.5 hr. |
| Acid Value (25oC) |
Max. 5mgKOH/g |
| Storage time |
Min. 6 months |
5. How to use:
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Dilute with toluene, xylene
or solvent-petrol;
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Dip, spray or brush onto
work-pieces;
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Preheated at 110~140oC
first for extracting solvents, then heated at 160~180oC, at
last heated at 200oC;
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Catalyst can be
added to accelerate the process, mall amount of catalyst such as
naphthalene acid will improve the process a lot. Zinc-,lead-,
manganese-, cobalt-carboxylate and amine could be used also;
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The amount of added
catalyst is decided by experience. To avoid gelating, the resin added
catalyst must be used up as soon as
possible.
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The silicone resin
containing some amount of aluminum powder can be used at temperature as
high as 300oC,even higher.
Cautions:
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Diluent must not contain water,
sulfur-containing organic stuff, pyridine and other impurities.
Otherwise the adhesion would be lower, the coating film would be
viscid.
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As large amount of solvent (as toluene, etc.)
will give off in the processing, workshop must be well
ventilated, keep away from fire. Also, labor protection is
essential.
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Impurities, dirty powders, etc., could damage
the insulating property, so the shops, equipment and tools must
keep clean in the processing.
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Acid, alkali, carboxylate and amine quickening
the cure process, lowing down the resistance to the
high-temperature and damaging the insulation properties, the
resins must be isolated from the above stuffs.
6. Packing, Storage and Transportation:
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Packing: 25KG,100KG net in iron drum.
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Storage: Keep away from sun, acid, alkali, fire and heat
source. Keep in dry, cold and well ventilated place.
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Transportation: As inflammable chemicals.
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