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low modulus neutral cure silicone for car body glass and side panels

SATOP® silicone sealant-683

low modulus neutral cure silicone
low modulus neutral cure silicone
low modulus neutral cure silicone

Description of low modulus neutral cure silicone

SATOP® 683 is a one-component, neutral silicone sealant, medium viscosity, medium modulus, high strength, moisture curing type high temperature resistant silicone sealant, Cross-link curing by absorbing moisture in the air in room temperature. After curing, it forms a permanent silicone elastomer with cold resistance, heat resistance and corrosion resistance. Can work under 270 ℃ high temperature for a long time,excellent weather resistance, anti-aging, uv resistance, ozone resistance, long service life.

Typical application of low modulus neutral cure silicone

SATOP® 683 has excellent high temperature resistance. Suitable for bonding and sealing at temperatures up to 270℃. Widely used in automobile manufacturing and engineering machinery industry; bonding and sealing between bodywork sheet metal and sheet metal.


Data Sheet

(Under 23 ℃ and 50% relative humidity conditions)

ColorTest standardBlackClear
Appearance PastePaste
Specific Gravity(g/cm3)GB/T13477.2-20021.30±0.11.30±0.1
Extrusion rate (g/min)GB/T13477.4-2002120~150120~150
Droop rate(mm)GB/T13477.6-20000
Tack free time(min)GB/T13477.5-20025~205~20
Cure speed (mm/24h)HG/T4363-2012≥2≥2
Hardness shore AGB/T531.1-200830~4530~45
Tensile strength(MPa)GB/T528-2009≥1.8≥1.8
Breaking elongation%GB/T528-2009≥350≥350
Temperature range ℃Short term-50~270℃-50~270℃





68301  black  300ml/cartridge  20cartridge/carton

68303  black  600ml/sausage  20sausage/carton


Keep in cool and dryplace Temperature 5~25°C

Shelf life:12 month

USE of low modulus neutral cure silicone

  1. Cut nozzle to give the required angle and bead size,Pierce the membrane at the top of the cartridge and screw on the nozzle.Place the cartridge in an applicator gun and squeeze the trigger with equal strength
  2. Ensure that the sealant is in good contact with the bonded surface, please modify before surface curing. Once the package is opened, it must be used up in arelatively short time.

Attention of operation of low modulus neutral cure silicone

  1. Do not contact the uncured sealant products with food and cosmetics;please use suitable industrial liquid soap and water to  
  2. clean Immediately when hands and exposed skin touch sealant. If sealant is not carefully entered into the eye, rinse immediately with plenty of water and consult the doctor. Put the product in a place where children can’t touch it.
  3. Uncured SATOP® 681 can be removed from the tools or equipment with appropriate solvents.If sealant has been solidified, it can be removed using a scraper or other mechanical device.

The technical data of this paper are all typical values obtained under laboratory conditions.We are not responsible for the results of methods beyond our control.Because users use condition is different, different material surface state, curing conditions, storage conditions, transportation and other factors can make gum stability and physical and mechanical properties, the actual performance data has some changes are normal phenomenon.Before using this product,Validation is based on the data provided in this article.If you have any problems with the process, you can contact our technical service department and we will provide you with all the help. Our company reserves the right to modify the data in this article.



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