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Home » Products » Silicone Sealant » Structural Silicone Sealant » JY989 Structural Glazing Silicone Sealant

JY989 Structural Glazing Silicone Sealant

JY989 is a single-component, neutral-curing elastomer engineered for structural bonding applications. It demonstrates exceptional bonding strength to various construction materials including glass, metals, and composites. Specifically developed for impact-resistant building systems, this high-performance adhesive meets stringent requirements for hurricane-resistant windows and safety glazing. Its durable formulation maintains structural integrity under extreme weather conditions, providing reliable performance in architectural projects demanding certified impact protection and long-term weather resistance
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Product Advantage

Feature

1.Structural Load-Bearing Capacity

Engineered for demanding structural applications, providing exceptional strength for bonding heavy glass panels and architectural elements.

2.Advanced Climate Resilience

Withstands extreme weather conditions including prolonged UV exposure, temperature cycles, and moisture without compromising integrity.

3.Non-Corrosive Curing Technology

Utilizes a substrate-friendly neutral cure process that eliminates damage risks to sensitive materials like metals and glass coatings.

4.Certified Impact Resistance

Meets rigorous standards for hurricane-resistant building systems, ensuring reliable performance in safety-critical applications.


Technical Parameters


Test Items

Technical Indicators GB16776-2005

Test Results

Remarks

Extrusion(ml/min)s

≤10

3

Qualified

Surface Dry Time/h

≤3

2.0

Qualified

Hardness

20-60

34

Qualified

Sag

Vertical Placement/mm

≤3

0

Qualified

Horizontal Placement

Zero

Zero

Qualified

Heat&Aging

Thermal Weight Loss%

Zero

Zero

Qualified

Resistance

crack

Zero

Zero

Qualified

chalking

Zero

Zero

Qualified

tensile strength and elongation at normal condition

Tensile Strength at Ultimate Enlongation/Mpa

≥0.6

1.38

Qualified

Destruction area /%

≤ 5

0

Qualified

Elongation at breake/%

≥100

413

Qualified

tensile strength and elongation @90℃

Tensile Strength at Ultimate

Enlongation/Mpa

≥0.45

0.83

Qualified

Destruction area /%

≤5

0

Qualified

tensile strength and elongation

@-30℃

Tensile Strength at Ultimate

Enlongation/Mpa

≥0.45

1.83

Qualified

Destruction area /%

≤5

0

Qualified

tensile strength and elongation after immersion

Tensile Strength at Ultimate

Enlongation/Mpa

≥0.45

1.34

Qualified

Destruction area /%

≤5

0

Qualified

tensile strength and elongation after exposure to UV

Tensile Strength at Ultimate

Enlongation/Mpa

≥0.45

1.23

Qualified

Destruction area /%

≤5

0

Qualified

tensile strength@23

Tensile Strength at enlongation

of %10(Mpa)

/

0.19

Qualified

Tensile Strength at

enlongation of%20(Mpa)

/

0.30

Qualified


Tensile Strength at enlongation

of %40(Mpa)


/

0.43

Qualified


Product Uses

Application:

Structural Silicone Glazing Systems

Bonding structural glass panels in unitized curtain walls without mechanical supports.

Pressure Equalized Rainscreen Assembly

Sealing and bonding aluminum composite panels in ventilated facade systems.

Hurricane-Resistant Fenestration

Installing impact-resistant windows and doors in storm-prone regions.

Structural Glass Fin Attachments

Bonding glass fins and suspended glass assemblies in all-glass constructions.


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

FAQs
  • Which substrate materials require primer treatment before application?
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    Primer is recommended for porous surfaces including certain grades of concrete and natural stone, while non-porous materials typically achieve direct adhesion.
  • Does the black coloration remain stable under UV exposure?
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    The formulated pigmentation demonstrates exceptional color retention, resisting fading or chromatic changes even under prolonged direct sunlight.
  • How does this product perform in coastal hurricane zones?
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    It maintains structural integrity and adhesion when certified for impact-resistant glazing systems in severe weather conditions.
  • What quality certifications support this sealant's structural claims?
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    The product complies with international standards including CE and GB 16776 for structural silicone sealants.
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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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