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Specifications

Description

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.

Characteristics

?        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

Items

Technical  Data

Detection method

Appearance

Black, gray, white paste

 

Hardness, Shore A

45-55

GB/T531

Sagging

No

 

Solid content

≥96%

 

Tack free time

25-60min

 

Curing rate

2-6mm/24h

 

Shear strength

≥3MPa

GB/KLT7124

Tensile strength

≥3.5MPa

Elongation at break

≥500%

GB/T528

Modulus at 100% elongation

1.4-2.5MPa

GB/T528

Tear strength

≥8.0N/mm

GB/T529

Packing

?        300ml aluminum cartridge.

Storage

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

Application

?        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.

Note

?        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.