What Kind of Sealant Should I Use To Seal Windows?

Windows in the home, as a bridge connecting indoor and outdoor, are not only related to the beauty of the home, but also carry important functions of waterproofing and windproofing. In order to ensure the sealing of windows, it is very important to choose the right sealant.

Function of window sealant

The use of sealant in window sealing is mainly to fill the tiny gap between the window frame and the inner and outer walls to prevent rain, cold wind, noise, etc. from entering the room through the gap. This requires that the sealant must have properties such as aging resistance and corrosion resistance, and can maintain a stable sealing effect in the long-term wind and sun exposure.

Among many sealants, silicone weather-resistant sealant is highly respected for its excellent performance. Its main technical indicators include displacement capacity and mass loss rate, which means that it can still maintain good elasticity and sealing performance under the pressure of the joint for a long time, effectively preventing cracking and performance degradation.

Where to use sealant

Outdoor: This is the key location for sealing windows. High-quality sealant can effectively prevent rainwater from penetrating into the room, especially in heavy rain or high humidity environments, and can better protect the interior of the building from moisture.

Indoor: In addition to outdoor waterproofing, the sealing of indoor window frames also needs the care of sealant. It can prevent dust, insects and other debris from entering the room, while improving the overall aesthetics of doors and windows.

Weathering adhesive & structural adhesive

Weathering adhesive and structural adhesive are two types of sealants for different scenarios, namely silicone weathering adhesive and silicone structural adhesive.

Weathering adhesive: Mainly used for waterproof sealing, with excellent weather aging resistance and waterproof and UV resistance, suitable for harsh environments such as outdoor.

Structural adhesive: It has good bonding performance and fatigue resistance, can withstand large loads, and is suitable for bonding strong structural parts.

Neutral sealant & acid sealant

Neutral sealant and acid sealant are both silicone sealants, with only different colloid components, namely neutral silicone sealant and acid silicone sealant.

Neutral sealant: Neutral sealant overcomes the corrosiveness of acid sealant on metal materials and alkaline materials, has a wider range of applications, and has less irritating taste

Acid sealant: Although acid sealant has stronger adhesion, it is corrosive to some materials and is applicable to limited materials. Special attention should be paid when using it.