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JY933 Weatherseal Superior Sealant

JY933 Weatherseal Superior Sealant is a single-component, rapid-curing elastomeric sealant with neutral curing characteristics. It demonstrates exceptional bonding performance, climate durability, and joint movement capability, making it particularly effective in regions experiencing extreme thermal variations and dry environments. This high-performance sealant is specifically designed for weather-proofing applications in building envelopes, including structural joints in curtain wall systems, perimeter sealing of windows, and expansion joints in various architectural facades. Its formulation ensures consistent performance under thermal cycling while maintaining long-term weather resistance.   
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Product Advantage

Key Advantages of our product:

1.Sausage-Style Packaging

Supplied in convenient sausage packs for efficient use with standard dispensing equipment, minimizing waste.

2.Professional-Grade Formulation

Engineered to meet the demanding requirements of architectural sealing and industrial applications.

3.Architectural Glazing Systems

Specifically designed for weather-tight sealing in curtain wall assemblies and structural glazing applications.

4.Advanced Neutral-Cure Chemistry

Ensures material compatibility without corrosive byproducts, protecting sensitive building surfaces.


Technical Parameters

Test Items

Technical Indicators

GB/T14683-2017

Test Results

Remarks

Appearance

Appearance:Fine uniform paste, no bubbles,no caking.No gel, no crust,no undispersed precipitates

Appearance:Fine uniform paste, no bubbles,no caking.No gel, no crust,no undispersed precipitates

Qualified

Extrusion(ml/min)s

≥80

355/min

Qualified

Surface Dry Time/h

≤3

0.7

Qualified

Elastic recovery rate

≥80

96

Qualified

Mass loss rate

≤8

2.1

Qualified

Sag

Vertical  Placement/mm

≤3

0

Qualified


Horizontal Placement

Not deformed

Not deformed

Qualified

23℃ Tensile Modulus

Tensile Strength/MPa

>0.4

1.13

Qualified


Destruction Area%

≤5

0

Qualified

Constant elongation bonding

Bonding Destruction Area%

≤5

0

Qualified

Adhesion after ultraviolet radiation

Bonding Destruction Area%

≤5

0

Qualified

Constant elongation after immersion in water

Bonding Destruction Area%

≤5

0

Qualified

Conclusion

The  batch  of  products  detected by  the judge:

(  ﹀  )Qualified     (    )Unqualified


Product Uses

Application

Sealing and waterproofing around windows and doors.

Mainly used for caulking and sealing of aluminum panels, stone, glass curtain walls, advanced doors and windows, canopies, etc.

Caulking sealing for general glass and most materials. Good compatibility with metal, glass, ceramics, non-oily wood, concrete, and other building substrates.


Product Operate Guide

Step 1: Make sure compatibility and adhesion between sealants and adhesive material before using.

Step 2: The sealant displays excellent adhesive effect in the clean environment with temperature of 4℃-40℃and Relative Humidity(RH)of40%-80%.

Step 3:Surface cleaning for bond substrates, clean up the dirt, grease and other contaminants, then affixedtemporary protective tape.

Step 4: According to the size you want, cut out sealant mouth.

Diameter of Gun nozzle should be smaller than the thickness ofthe sealant injection place, it makesnozzle can stretch into the 1/2 depth of the sealant injection place. Start to inject sealant whensubstrate surface is completely dry, Extrusion and injection of sealant shall be continuous ,whichmakes sure the extrusion of sealant is continuous and uniform cylinder, the move the gun slowly anduniformly, make sure the substrate interface is full of silicone sealant. Quick move is not allowed forthe gun, it will cases bubbles or holes.

Step 5: Decoration should be carried out when the injection is finished, and remove temporary protective tape.


1.Surface-Cleaning

1.Surface Cleaning

2.Afixed-Tape

2.Affixed Tape

3.Sealant-Mouth-Cutting

3.Sealant Mouth Cutting

4.lnjection

4.Injection

5.Surface-Fixing

5.Surface Fixing

6.Tape-Remove

6.Tape Remove

7.Finish

7.Finish


FAQ

FAQ
  • Can it be applied over existing sealant during repairs?
    Created with Sketch.
    形状 Created with Sketch.
    Complete removal of old sealant is mandatory; surface preparation requires clean, residue-free substrates for proper adhesion.
  • What joint design specifications are recommended?
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    形状 Created with Sketch.
    Joints should maintain minimum 4:1 width-to-depth ratio, with proper backer rod installation for optimal performance.
  • How to achieve proper surface preparation?
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    形状 Created with Sketch.
    All substrates must be cleaned with appropriate solvents, followed by thorough drying and primer application where specified.
  • Does it maintain flexibility in cyclic movement joints?
    Created with Sketch.
    形状 Created with Sketch.
    The formulation withstands repeated extension/compression cycles, maintaining watertight integrity through ±25% joint movement.
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Guangzhou JAYO Technology Co., Ltd. is the import and export arm of Dayou Building Materials Co., Ltd. Since its founding, we have continuously enhanced our customer...

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