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Zhijiang JS-318 Polyurethane Sealant offered by Reliance

Zhijiang JS-318 Polyurethane Sealant offered by Reliance

Place of Origin : China
Brand Name : Reliance
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JS-318 is one-part room temperature curing polyurethane with high adhesion strength, good elasticity, aging resistant, vibration exhaustion resistant, low temperature resistant and multi coatings paint able and easy application properties.


  • Fast tack free; High adhesion strength
  • Neutral; Good chemical corrosion resistance
  • Good water proof ; Paint able
  • One part no mixing ; Excellent weather proof, aging resistant property
  • Abrasion able ; Excellent noise, vibration and Impaction resistant Damp resistant ;No sagging ; Anti mildew

Where to use

Maintenance and sealing for auto windows, it also be used for the direct for auto windows.

Technical Data for reference



Detection method


Black, gray, white paste

Hardness, Shore A





Solid content


Tack free time


Curing rate


Shear strength



Tensile strength


Elongation at break



Modulus at 100% elongation



Tear strength




  • 300ml aluminum cartridge.


  • At 5~25 centigrade shady, dry place, 9 months of shelf life.


  • Surface preparation: Clean all dirty, dust, loose particles by steel brush and clean all oily things with cleaning agent. All former adhesive must be cleaned out by scraping, paring, friction, jet of strong air or suitable ways.
  • Priming: Commonly no need for primer. Primer could be recommended in order for best performance. If using primer, smooth priming base and no permitting primer clump and uniformly disperse to prevent any coating cumulus.
  • Mixture: JS-318 don't need mixing and use directly.
  • Spreading: Spread JS-318 on base material with enough pressure and thickness not less than 1 millimeter.


  • Full cure (dry 7 days under 20℃) for JS-318 should be finished before applied place permits water entering into. The adhesive surface could be painted but no recommendation for solvent based paints such as colorful enamel. If should be used, please do in site testing to prove compatibility.
  • No permission for wet spreading tech. NO recommendation solvent, water, cleaner or soap solution.
  • No permission for high chloride content disinfected area like swimming pool before consulting Zhijiang's technician.
  • Application temperature is between 5 ℃ and 35 ℃.

Paintable Property

  • JS-318 could be painted after dry with traditional method like epoxy or acrylic paints. The adhesive surface will take place reaction and soften if using high solvent content coating like luster enamel or high oily base coatings.
  • Coating should have similar tensile strength compared with adhesive in order to get best appearance and property. Painting could be processed after 24 hours if thickness of adhesive is less than 3 mm while painted after 48 hours if thickness more than 3mm.

Anti Fire

  • JS-318 is not easy inflammable.

Handling Precautions

  • Not contact sealant with food or cosmetics;
  • Not contact skin for long time about uncured sealant;
  • Rinse eyes with large quantities of water and seek medical check if sealant drops into eyes.

Company profile

Xuzhou Reliance Engineering Science and Technology Co., Ltd. is located in the national science park of China University of Mining and Technology (CUMT), Xuzhou, Jiangsu, China. We major in the developing, producing and trading sealants. Reliance is willing to join hands with our clients, suppliers and employees to create a prosperous future based on the corporate philosophy: "Reliance for clients, Reliance for suppliers, Reliance for employees".

Our company independently developed Reliance sealants and we are also the exclusive distributors of Loctite, Henkel, Sika, Wacker, GE, Huitian, Zhijiang, Lida, Deke, etc., which are the famous brands among the home and abroad specialized in polyurethane sealant, MS sealant, silicone sealant, planar sealant, thread locking glue.

Product Tags:

PU sealant


MS sealant


Silicone sealant

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