Butyl Sealant Used For Insulating Glass First Seal Insulating Glass Processing

Why use hot melt butyl sealant for insulating glass?

Hollow glass (trough aluminum type) must adopt double sealing mode to ensure its sealing and durability. That is, the first sealing using hot melt butyl sealant, mainly plays a sealing role; The second seal is completed by elastic sealant, which plays an auxiliary sealing and keeps the structure of insulating glass stable. The two complement each other and are indispensable.
Composition and function of butyl adhesive

Composition: Butyl sealant is mainly polyisobutene, butyl rubber as the main material, reinforcing agent, tackifying agent, heat stabilizer, softener, filling agent as ingredients.

Function:

Prevent water vapor from entering the hollow glass cavity

Fix the glass on both sides of the aluminum strip of the insulating glass

Enough stability to continue to work

Performance of butyl adhesive and comparison of competing products

Water vapor transmittance

Refers to the ability of water vapor to pass through a material, and the weight of water vapor through the material at a certain temperature and humidity at a certain time.

Shear strength

Shear strength refers to the ability of the material to bear shear force, refers to the external force perpendicular to the axis of the material, and the strength limit of the shear action on the material.

Confucianism degeneration resistance

Creep resistance refers to the phenomenon that the deformation degree of a material increases with time under dead load (constant external load). Creep reflects the rheological properties of a material under load

Thermogravimetric efficiency
Thermogravimetry is to measure the change of weight with the increase of temperature by heating the substance and making it volatilize and decompose gradually

Overall appearance, actual performance of glue

In the process of use, it is shown to be black and glossy, and there should be no residual black stains on the hand contact and kneading hands.

Butyl rubber product introduction
Size: 7 kg

Shelf life: the shelf life of unopened and used products is 2 years. Finished production of insulating glass sealant life in more than 20 years.

Glue temperature: the suitable temperature of spring light products is 130℃ (the actual temperature of the nozzle), which can be fine-tuned according to the ambient temperature.
Dosage: about 8 grams per meter can meet the requirements (bilateral dosage).

Introduction of LIJIANG GLASS