Silicone sealant may experience issues such as detachment, fracture, or incomplete curing during application, which often stem from improper handling and affect its curing and performance.
To ensure the effective use of silicone sealant, the following are some key application steps:
1. For single component products, use a glue gun; And two-component silicone adhesive needs to be mixed evenly in proportion before use.
2. Clean the surface of the bonded object, remove impurities such as oil stains and rust, and use professional cleaning agents and sandpaper if necessary to improve the bonding effect.
3. Apply silicone sealant evenly for bonding, and ensure that air is removed to avoid affecting the curing quality.
4. Allow the silicone sealant to cure naturally at room temperature and wait for a certain period of time before proceeding with further operations.
5. Use a cloth or tissue to remove excess adhesive, and after curing, use a blade to scrape off any residue.
When using silicone sealant, it is also important to avoid the following improper operations:
1. Not suitable for long-term immersion environments to avoid affecting the adhesive performance of the adhesive.
2. It should not be used on surfaces that are too damp or prone to frost, as effective bonding cannot be achieved.
3. Single component silicone sealant may not fully cure in a completely sealed environment.
4. The surface of the substrate must be kept clean and dry, otherwise it will affect the adhesion strength.
5. Avoid using inferior adhesives to prevent corrosion of other components.
The curing of silicone sealant is limited by environmental conditions and can usually be applied normally within the range of 5-40 ℃. When the surface temperature of the substrate exceeds 50 ℃, construction should be stopped because high temperatures can accelerate curing but may cause bubble formation. If the temperature is too low, it will slow down the curing speed and may cause the adhesive layer to shrink and deform.
Silicone sealant is not suitable for all occasions, such as long-term immersion, frosting or humid environments, unclean substrate surfaces or areas with oil stains.
When selecting silicone sealant, quality inspection should be carried out from the following aspects:
Firstly, check the product performance to ensure it meets the usage requirements, and pay attention to its storage period. High quality adhesives usually have a longer shelf life.
Secondly, pay attention to checking the production date and avoid purchasing expired products to ensure their stable and reliable performance.
Finally, the quality of the adhesive is judged through tactile testing. High quality products should have good elasticity and softness, and be free of defects such as particles and bubbles.
Post time: Mar-14-2025