Do 8mm pens for glass writing need to be shaken before use?

Jun 11, 2025

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David Li
David Li
Product Development Engineer with a focus on creating high-quality writing instruments. Having worked at Shenzhen Ample Technology for 8 years, I enjoy pushing the boundaries of pen design and manufacturing to deliver exceptional products.

Hey there! As a supplier of the 8mm Pen Write on Glass, I often get asked a bunch of questions about our products. One of the most common ones is, "Do 8mm pens for glass writing need to be shaken before use?" Well, let's dive right into it and find out.

First off, let me give you a bit of background on our 8mm pens. These bad boys are designed specifically for writing on glass surfaces. Whether you're a business owner looking to create eye - catching window displays, an artist wanting to add some flair to glass art, or just someone who likes to have fun with glass decorations at home, our 8mm Window Marker Set has got you covered. It comes with a variety of Colors Chalk Window Marker options, so you can really let your creativity shine.

Now, back to the main question. The short answer is, it depends. Most of the time, shaking the 8mm pen before use is a good idea, and here's why. Inside the pen, there are pigment particles suspended in a liquid medium. Over time, these particles can settle at the bottom of the pen. If you don't shake the pen, you might end up with inconsistent ink flow or a lighter color than you expect. Shaking the pen helps to redistribute these pigment particles evenly throughout the liquid, ensuring that you get a smooth and vibrant writing experience.

Let's talk about the science behind it. The pigment particles in our pens are relatively small, but they still have mass. According to the law of gravity, heavier particles will naturally sink to the bottom when left stationary for a while. When you shake the pen, you're essentially creating a turbulent flow inside the pen. This turbulence causes the pigment particles to move around and mix with the liquid again. It's like making a salad dressing. If you let the oil and vinegar separate, you have to shake the bottle to get them mixed up again.

Another reason to shake the pen is to prime the tip. The tip of the 8mm pen is designed to absorb and release the ink smoothly. However, if the ink has settled, it might not reach the tip properly. By shaking the pen, you're forcing the ink to flow towards the tip, making it ready for writing. This is especially important if you haven't used the pen for a long time.

But there are some cases where you might not need to shake the pen. If you've just used the pen recently and put the cap back on right away, chances are the pigment particles are still well - mixed. In this situation, a quick gentle roll between your fingers might be enough to make sure the ink is flowing. Also, if you've been using the pen continuously, there's no need to shake it every few minutes. The constant movement of the ink during writing helps to keep the particles mixed.

Now, let's talk about how to shake the pen properly. It's not rocket science, but there are a few things to keep in mind. First, make sure the cap is on tightly. You don't want ink flying everywhere. Then, hold the pen firmly and give it a few sharp shakes up and down. You can also rotate the pen while shaking to make sure all the areas inside the pen are affected. Do this for about 10 - 15 seconds, and you should be good to go.

Some people might be worried that shaking the pen too vigorously could damage it. Well, our 8mm pens are built to last. They're made with high - quality materials that can withstand a bit of shaking. However, if you're really concerned, you can always start with a gentle shake and gradually increase the intensity if you feel like the ink isn't well - mixed.

Colors Chalk Window Marker8mm Window Marker Set

If you don't shake the pen and end up with inconsistent writing, don't worry. You can try shaking the pen then. Sometimes, you might also need to press the tip against a piece of scrap glass or paper a few times to get the ink flowing properly. If the problem persists, it could be a sign that the pen is running out of ink or there's a blockage in the tip. In that case, you might need to replace the pen or clean the tip according to the instructions.

In conclusion, while it's not an absolute must to shake the 8mm pen for glass writing before use, it's generally a good practice. It helps to ensure consistent ink flow, vibrant colors, and a better overall writing experience. Whether you're a professional or a hobbyist, taking that extra few seconds to shake the pen can make a big difference in your final result.

If you're interested in our 8mm Pen Write on Glass products, we'd love to hear from you. Whether you're looking to place a bulk order for your business or just want to try out a few markers for personal use, we're here to assist you. Contact us to start a procurement discussion, and let's bring your glass - writing ideas to life!

References

  • Basic principles of fluid dynamics and particle suspension in liquids from general physics textbooks.
  • Product development and testing data from our in - house research and development team.
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