Gaoseal silicone adhesive has excellent properties such as UV resistance, ozone resistance, and aging resistance.

A、 The actual service life of silicone adhesive will be affected by various factors, how long can it guarantee that it will not fail?

1. Product type and quality:
Gaoseil 9009 high-performance silicone structural adhesive for curtain walls (compliant with national standard GB 16776-2005) has stricter formulation and durability than ordinary sealants due to its load-bearing requirements.
Gaoseil 9008 high-performance silicone weather resistant adhesive for curtain walls (compliant with national standard GB/T 14683-2017) focuses more on its resistance to external climate conditions.

2. Construction operation specifications:
Substrate cleaning: Ensure that the bonding surface is clean, dry, free of oil stains and dust.
Seam design: Reasonable seam width and depth.
Construction environment: Construction should be carried out under recommended temperature and humidity conditions.
Irregular construction will significantly shorten the service life of the adhesive.

3. Environmental conditions:
Long term sustained extreme temperatures (such as being above 70 ℃ or below zero degrees).
Strong ultraviolet radiation (such as in high-altitude and equatorial regions).
Chemical erosion (such as acid rain, solvent vapor).
Continuous stress (such as frequent vibration, significant expansion and contraction displacement)

4. Maintenance and Inspection:
Regular inspection and maintenance of the project can also promptly identify potential issues.

B、 How to determine if silicone adhesive has failed?
Even with excellent performance, silicone adhesive will eventually age. The main signs of failure include:

Physical property changes: Colloids become significantly harder, brittle, powdery, and lose elasticity, and may shatter with a gentle pinch; Or excessively softened or sticky.

Adhesive failure: debonding occurs between the adhesive and the substrate (which can be peeled off from one side), or cracking occurs inside the adhesive.
Loss of sealing performance: problems such as water leakage and air leakage occur.

Appearance changes: severe foaming, powdering, discoloration, or mold growth (for products with poor mold resistance).

If any of the above situations are found, especially in critical structural areas, professional personnel should be promptly consulted for evaluation and replacement or repair.