Before purchasing an extruded rubber profile, you must ensure that you have detailed knowledge about all of its aspects. Proper understanding is crucial to get the best deal. As such, here are a few things about custom rubber extrusion profiles that you should know about.
# Introduction to Rubber Extrusions
These items are continuous profiles and are typically used in sealing applications. Extrusions come in a wide variety of shapes and sizes. Some are even crafted with dual materials.
Generally, a die is used for creating rubber extrusions. In a die cutting machine, the raw material and other additives are fed. Then, the extruder, which is a rotating screw, forces excess materials out with heat and shear. After the extrusions leave the die, they will be cured. Various curing processes can be used such as water and ovens. Finally, they will be finished after cutting into desired lengths.
# Factors to Consider When Customizing Rubber Extrusions
It is possible to design unique rubber extrusions for specific applications these days. If you are in need of custom rubber extrusion profiles, here are a few things to note beforehand.
In order to create custom rubber extrusions, you need to craft a die so as to achieve the desired profile. These dies are always created on the basis of the material that it is supposed to work on. You need to remember that rubber tends to shrink after curing. The shrinkage depends on the composition of the rubber. As such, you must first determine the material composition before creating it.
# Applications of Rubber Extrusions
There are several industries where rubber extrusions are used. Some of them are as follows.
- Pharmaceutical Industry: Rubber extrusions are often used for compliance with safety and hygiene protocols.
- Food Industry: This industry also uses rubber extrusions for compliance with regulations.
- Mass Transit: In this sector, potential applications for rubber extrusions include seals for train doors and partitions. They are also used for sealing gangway diaphragms. In aircrafts, they are used for sealing the pneumatic doors.
- Marine Industry: There are several applications of rubber extrusions in the marine industry. Some examples include seals for hatches and watertight doors. They are also used on the wiper blades of a ship’s windscreen among other things.
# Asking for a Custom Sample
Often, you may need a sample of the custom rubber extrusions before you actually order it from a company. A few manufacturers do offer this option. However, there are rules that you need to abide by. You will certainly have to order the custom die first. This involves an investment as the die once made cannot be remade at will. You must inform a company that you require a sample. Usually, there are no charges for a sample. The manufacturer will always entertain alternation requests. However, they will charge for the alterations made.
# Using Rubber Extrusions
Rubber extrusions can be used in a variety of ways. If you want, you can even cut them and join them as per your requirements. To do so, you must prepare the cut surfaces of the rubber extrusions. With the help of a partially uncured rubber, you need to vulcanize the surfaces. A cast is required to help the rubber extrusions achieve the desired corner. You can ask your manufacturer to handle this for you by giving them the specifics.
# Benefits of Rubber Extrusions
Rubber extrusions are often better than rubber moldings in various ways. They are not restricted in terms of size. Moreover, they are more flexible with their geometrics.
To get the most out of your custom rubber extrusion profiles, you should make it a point to work with a reputable manufacturer. As such, put in effort into your search for the best results.