Rubber O-rings are used in a wide variety of sealing applications, ranging from plumbing to machinery. They are so widely used because they are essential components that prevent leaks. Unfortunately, natural wear and tear will expand O-rings over time. Poorly sized O-rings can impact the function of certain technologies. Below, you will find how to shrink a rubber O-ring so you can extend the function of your devices.
How to Shrink a Rubber O-Ring
Rubber O-rings are seals made from a number of different materials. Commonly, they are composed of materials like silicone or nitrile, but a number of other materials can serve the purpose. In any case, the materials used to create O-rings are flexible, durable, and resistant to pressure and drastic temperatures. Nevertheless, natural wear and tear and extreme conditions can cause O-rings to expand and impact their usefulness. You can shrink rubber O-rings to restore optimal function.
Chemical Method
Specific chemicals can shrink an O-ring to restore its original size. While not a permanent solution, chemicals can temporarily shrink the O-ring. To do this, you must find a compatible solvent or chemical that will not degrade the O-ring material.
When you find your solvent and begin to soak the O-ring, be sure to keep an eye on it, as some chemicals can work quickly. Once the O-ring has reached the ideal size, rinse it with water and allow it to air dry. This method of shrinking O-rings is ideal if you need minor adjustments to the size of the O-ring.
Cooling Method
Using temperature to manipulate the O-ring can aid in shrinking it. Cooling the rubber reduces the flexibility. When using this method, put the O-ring in a sealed bag to help prevent condensation.
Put the O-ring in the freezer for at least ten minutes. Be sure to check it periodically to monitor the shrinkage. Depending on the material, it should not take more than twenty minutes. Once you have removed the O-ring from the freezer, remove it from the bag. Immediately install it in the application before it expands. The cooling method is only a temporary solution to outsized O-rings, so you should be sure to order a replacement.
Heating Method
Conversely, O-rings can also be shrunken using controlled heat. Before starting this method, double-check the O-ring material to ensure that heat will not degrade it. Measure the diameter of the O-ring before you begin the process.
Heat water to at least 120 degrees Fahrenheit. Put the O-ring in the hot water for just a few minutes. Be sure to monitor it, as heating it for too long can be detrimental to the process. After a few minutes, remove the O-ring from the water and allow it to dry. Compare the diameter length after the heating method to the length from before the process. Again, this is not a permanent solution, but it will be helpful if you need minor adjustments right away.
How To Maintain Your Specialty Seals
O-rings and other specialty seals need to be adequately maintained. This ensures the full function and safety of the application. Consider the following to ensure your seals last.
Regular Inspection
It is necessary to regularly inspect your seals. Consider the rate at which you need to replace the seals. Monitor them well in advance to avoid costly issues with your application. When inspecting the seals, look for signs of cracking or flattening. Replace them if you see any of these issues to prevent further damage.
Choose High-Quality Products
The quality of the product is important as it can impact the function and longevity of the seal. Opt for high-quality seals that are durable and reliable so you can save time and money in the long run.
Specialty Seals
If you need specialty seals for your application, contact the team at Real Seal!
