Using a caulking gun you can seal, fill gaps between windows and many other things.
Caulking guns do not differ much. The most important thing to pay attention to is the quality of construction. Material and convenience are at hand.
An important recommendation
Cut the tip of the sealant pipe with a knife at an angle of 45 degrees. It is very important. If it is cut straight, it reduces the sealing quality.

How to use
1- Wipe the sealing area with a tissue and remove the dust.
2- Using a putty knife, wipe and clean the desired part.
3-Wash the desired part again with hot water and cleaning foam, then dry it with another cloth.
4- Use masking tape to protect the desired area. This action makes your work neat and tidy when you make a mistake.
5- Push the rod of the sealant gun back and put the silicone sealant inside it, and then push the trigger again to direct the rod where the silicone sealant post is located.
6- Cut the nozzle head at an angle of 45 degrees, this is a very important point. The nozzle head is cone-shaped and goes from small to large. If the seam is small, cut the nozzle first, and if the seam is larger, cut the end of the nozzle.
7 First practice on a piece of paper. Hold the caulking gun at a 45 degree angle. Press the trigger to eject the material from the nozzle.
8- At the end, you can help with your finger to cover all the seams.
1-Cocew

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More Information & Buy on AmazonProfessional sealing with this device | With a needle to open blockages |
It is very light | Good ergonomic handle and accessories |
2-Bates

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More Information & Buy on AmazonSuitable for glue, acrylic, asphalt, butyl, cement | High accuracy and ergonomic design |
The price is right | It has high durability and efficiency |
3-SILIGUN

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More Information & Buy on AmazonSuitable for latex, acrylic, silicone | It leaves less mess than other caulking guns. |
It is very small and takes up little space and can be placed in any tool box. | It has a good calculation and is accurate |
4-Newborn 188

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More Information & Buy on Amazonmedium viscosity materials | It has different pipes with different sizes |
Has a tool for piercing-Hard steel material | Has a hook for hanging |
5-Compact 11

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More Information & Buy on AmazonSuitable for use with latex, acrylic, silicone caulks | It is anti-drip. Its sealing is excellent |
It is very light and small. It is placed in any tool box | 12:1 high thrust ratio delivers |