Silicone sealant is an indispensable caulking material in renovation projects. It can effectively waterproof, bond and seal. However, there are tricks to using silicone sealant correctly, requiring attention to all aspects including selection, application and daily maintenance. The following article explains in detail the correct usage of silicone sealant.
Silicone Sealant Essential Tips
Choosing Silicone Sealant
Types of Silicone Sealant
Silicone sealant is mainly divided into neutral cure silicone and acetic cure silicone.
Neutral cure silicone has a wider range of applications and is relatively high quality, but the price is slightly higher;
Acetic cure silicone is inexpensive, but has corrosive properties and is prone to mildew. Choose according to actual needs.
Applying Silicone Sealant
Correct Application Steps for Silicone Sealant
Prepare silicone sealant gun
Use a caulking knife or scissors to open the nozzle
Affix masking tape on both sides of the edges where silicone sealant will be applied, to protect and keep the area clean
Apply the silicone sealant into the crevices, then scrape away excess sealant with a scraper
Use a knife/other tool to smooth the surface of the silicone sealant, then leave to dry
Drying Time for Silicone Sealant
The surface drying time for silicone sealant is approximately 2 hours
The full cure time for neutral cure silicone sealant is approximately 48 hours, while for acetic cure silicone sealant it is approximately 24 hours
In some more extreme environments with higher humidity or lower temperatures, the full cure time may need to reach 2-3 days
Precautions When Using Silicone Sealant
Preparation: Ensure the surface to be sealed is clean and dry. Any dust, dirt or moisture will affect the adhesive strength and curing of the silicone sealant.
Safety: Wear gloves and goggles when applying silicone sealant. Ensure the working area is well-ventilated as some silicone sealants release harmful gases.
Cleanup: If silicone sealant gets onto unwanted areas, clean immediately before it cures. Commercial silicone sealant cleaners or alcohol can be used for cleaning.
Author’s Experience Using Silicone Sealant
Purchase together with the caulking gun.
Ask the shop to open the nozzle when purchasing to avoid opening it yourself.
Purchase silicone sealant shaping tools for easy old sealant removal and improved shaping effects.
For leftover silicone sealant, simply extrude a bit from the nozzle and let it dry. Peel off the cured sealant layer next time before use. For long-term storage, wrap the nozzle with plastic bag/tape.
Maintaining Silicone Sealant
Key Points for Daily Maintenance of Silicone Sealant
Regularly ensure the sealant surface is clean and dry to prevent mildew
Repair or replace once damage or aging is discovered
Inspect every 3-6 months to achieve optimal waterproofing effects
I hope the above sharing helps you! Feel free to also check out our neutral cure silicone sealant product (LE837), which has obtained the latest British Standards certification.
