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8690

Product Features

The 8690 impregnation sealant has excellent one-time sealing efficiency. The cured material has excellent mechanical properties, heat aging resistance, and solvent resistance. The reliability of the workpiece after impregnation is high, and there is no leakage after the impregnation is qualified. It has good washability, suitable for the impregnation production line with flip spray mechanism. The product has less additive consumption, and is more convenient to be used and kept.







Basic Performance Parameters


 

Typical Value

Range

Chemical type

Methacrylates


Appearance

Transparent, yellowish liquid


Density(20℃)(g/cm3)

1.005

0.900~1.050

Thermal stability at 75℃

90min

≥30min

Viscosity(25℃),mPa.s

10.08

6.00~16.00

Curing time(min)

5.0

≤10

Hardness of cured product 

88

≥86


Resistance to Chemicals and Solvents

Passed U.S. Military Standard MIL-I-17563C tests

Conditions Tests

Environment 

Time 

Temperature 

Result 

Water 

14 days

100℃

No leak 

Oil 

14 days

99℃

No leak 

Hydrocarbon fluid 

14 days

23℃

No leak 

Carbon removal 

30 minutes

23℃

No leak 

Lubricating oil 

48 hours

121℃

No leak 

Turbine fuel 

48 hours

23℃

No leak 

Ethylene glycol 

14 days

149℃

No leak

Hydraulic fluid

14 days

99℃

No leak

Fuel 

48 hours

23℃

No leak 

Diester grease 

48 hours

23℃

No leak 

Sulphuric acid(18%)

2 hours

23℃

No leak 

Stoddard solvent 

48 hours

23℃

No leak

Ethyl alcohol 

48 hours

23℃

No leak 



Passed the powder metallurgical ring tests specified in U.S. Military Standard MIL-I-17563C.


Environment 

Time

Temperature

Result 

Heating 

100h

200℃

No leak 

Heat/freeze cycle 

180 days

-30℃~160℃

No leak 


Storage and Use


Storage environment
Be stored in a cool and ventilated place free from direct sunlight, can be stored for one year under normal conditions.

Protective measures Users shall wear work clothes, gloves, masks, goggles; pay attention to the ventilation of the workplace; after use, clean hands thoroughly.

Attentions:This product is slightly irritating to skin, can not be directly contacted; is strongly irritating to eyes, avoiding to enter the eyes; pollutes water, shall not be discharged directly.

Accident disposalSkin contact: Wash with clean water and soap; entering eyes: Wash with flowing water; trachea inhalation: Immediately transfer to fresh air for rest and seek medical care.

For details, see MSDS.