If this is the first time you have heard of rubber grommets, don’t be afraid, because we are sure you have seen them at least once in your life.

A rubber grommet is a small round tube or hole, which is mainly inserted into a hole in thin material such as wood, metal, or plastic. The rubber grommet refers to the small hole on the shower curtain and the small things on the rubber shoes.

We use rubber grommets in our daily lives; this is the convenience of these gadgets. Their uses for them are limitless, and they play an important role in multiple industries. Rubber grommets are mainly found in the construction industry and are used to cover up the rough and sharp edges of metal holes. They are used to protect another material and should be through the rubber grommet.

They are mainly used to safely pass wires through holes in metal or other materials.

But another very important industry for them is the automotive industry. Rubber grommets have many uses in automobiles. They are mainly used to protect circuits, wires, and cables from scratches on rough surfaces. Rubber grommets are also used to seal important valve body applications and various under-hood applications.

Important features of rubber grommets

Rubber grommets have more uses in daily life and in the automotive industry.

Some of the most important features of these projects are:

Good weather resistance

They are less negatively affected by UV rays

Rubber grommet has strong heat resistance

They will not crack or loosen

Rubber grommet can resist tearing

Very fast and easy to install

More ergonomic, because you don’t need to screw them in place manually

They are very economical and practical solutions to many problems in the automotive industry

What are their uses in the automotive industry?

Rubber grommets have practical applications in the automotive industry. One of their main uses in this area is to seal important engine components and body applications. Because they are small and practical, they work best in small spaces or small areas with limited space usage.

The engine is the most important part of a car, and there are many wires and cables running through it. Rubber grommets are used to protect these cables and wires from severe engine vibrations. As you know, repeated shaking or vibration of the most important wires and cables can cause catastrophic problems for your car.

This is why rubber grommets are mainly used to separate these cables and wires from each other to prevent them from repeatedly colliding or rubbing against each other. If there is no rubber grommet, the cables and wires will eventually wear out and may even be severe to the engine. This will enable the use of rubber grommets mainly to protect and keep wires and cables in place.

We are rubber grommet manufacturers. If you are interested in our products, please feel free to contact us.

Rubber Grommet

When you drill or punch holes in metal or other substrates, sharp edges are created, which may be dangerous to the materials that need to pass through these holes. Usually, these holes are necessary for wiring, pipes, hoses, ropes, air ducts, or other components that are indispensable to performance. These elements need to be protected to prevent the sharp edges of the holes through which they pass to ensure continued operation.

This is the purpose of the rubber grommet. The rubber grommet is a bendable part with a collar to fix it in the hole. The rubber ring forms a mechanical buffer between the metal and other components. This can prevent friction and wear between components and metal, resulting in short circuits or leakage and failure. When the wire passes through the metal element, the grommet can also prevent the ground wire.

In addition to protecting parts from cuts and friction, rubber grommets are also used as shock absorbers to create a snug fit between two different parts. These types of vibrating mount grommets protect against compressive forces and also help reduce noise levels. These types of grommets are easy to distinguish-one of their ribs is always thicker than the other, and it is this thickness that provides stability and vibration isolation.

At the same time, grommets with extended necks are often used on electrical appliances where wires enter a unit, and their necks provide some extra stability for the wiring. Rubber grommets are also very suitable for separating components. Multiple component holes allow different components to pass through the same hole on the substrate while preventing different components from contacting or entangled with each other. Finally, the grommet helps to create the appearance of the finished product, especially in furniture applications.

An appropriately sized rubber grommet will be easy to locate and should fit firmly into the panel hole. Their size can be adapted to all types of holes and all types of components, with different inner and outer diameters and groove widths. An appropriately sized metal grommet will provide protection for other components except for the one that passes through the interior – especially in electronic applications, the grommet helps to seal the gap and prevent air, water, and dirt from affecting the through holes and connections or other Components.

Rubber gaskets can be made from a variety of rubber compounds, depending on the specifications required, from silicone to nitrile rubber. This allows different hardness levels to cope with different substrates, depending on the expected stress level. If necessary, you can also use specially formulated compounds to combat overheating and fungus. The highest specification materials are also resistant to oil and UV rays and provide the best protection for sensitive components.

The rubber grommet is not completely round either. Thanks to this production method, rubber can be molded to fit odd shapes, including oval, square, or square circles. Rubber grommets are resistant to tearing, abrasion, rust, and corrosion, making them a high-quality long-term solution.

We are Rubber grommets suppliers. If you are interested in our products, please feel free to contact us.

Precautions When Repairing Automobiles

When repairing a door with a sealing flange, pay attention to repairing the damaged sealing flange and accurately restoring the shape of the original flange. When replacing the door, be sure to apply folding glue on the flanging occlusion of the inner and outer panels of the new door, and plug some small craft holes left by the tape stamping.

When repairing automobile wiring harnesses, all body holes and hole sealing rings must be installed in place, because these automobile connectors seal not only play a sealing role but also protect the wiring harness. If the seal of the automobile connector is damaged or the wiring harness can rotate or move in the sealing ring, the sealing ring should be replaced, and it should be firmly assembled with the body hole and hole to make the wiring harness stable.

After the window glass is damaged, the curvature of the original window glass should be replaced. At the same time, check whether the glass guide groove and the sealing strip are damaged. Because the window cannot be restored to its original shape after being repaired, at this time, in addition to ensuring that the window can be easily pulled up or lifted, we should pay attention to the sealing around the window when closing the window.

When replacing the roof, apply a layer of conductive sealant to the crimping area around the roof first, and then the sealant should be coated all over the flow tank and joint after welding. This not only helps to seal the car body but also prevents early rusting of the car body due to the accumulation of water in the flange welds. When assembling the door, a whole piece of sealing isolation film should be pasted on the door’s inner panel under the window. If there is no formed sealing isolation film, ordinary plastic paper can be used instead. Then paste the sealing isolation film and compact, and finally assemble the inner panel.

We are automotive connector seal suppliers. Please feel free to contact us if you are interested in our products.

Summary:

There are two main methods for coloring custom rubber components: surface coloring and color mixing. On the surface table, a colorant is sprayed on the surface of a rubber product to color the rubber product. This method has a certain effect on static products, and on dynamic products, the colorant is easy to peel off and fade. Mixing coloring is the main method of rubber coloring at present, divided into two methods: solution method and mixing method. The mixing method includes dry powder coloring, color paste coloring, pellet coloring, and masterbatch coloring.

Solution coloring

The method is to dissolve the rubber into a certain concentration solution with its good solvent, then add the colorant and the rubber compounding agent except sulfur to the solution, stir and mix well, dry and remove the solvent at a certain temperature, and finally on the rubber mixer Add sulfur. This coloring method has complicated operations, uneven dispersion of colorants and complexing agents, color difference, difficult recovery of solvents, and pollution of the environment, and has been rarely used at present.

Kneading method

This method is currently the most commonly used method for silicone rubber wire seal coloring. It is to add the colorant directly or mix it with the carrier first and then add it to the rubber compound. Mix it evenly with a rubber mixer to color the rubber. . The specific method is as follows.

Dry powder coloring This method is to add the powdery colorant into the rubber together with the small material, and mix it on an open mill. The advantages of this method are simple operation and low cost, but the dust is large during mixing, pollutes the environment, and it is not easy to disperse uniformly, and there is chromatic aberration. If the particles are too hard and coarse, it will also cause quality problems such as color point, streaks or mutual pollution of chromatography It has been used less frequently. For ease of use, a powdered colorant can be made into a pre-dispersed colorant together with stearic acid, sulfate, and the like, which are already on the market.

Custom Rubber Components

Color paste coloring This method is to first mix the colorant with a liquid compounding agent (such as a plasticizer), grind it with a three-roller machine to make a paste or slurry, and then add it to the rubber in a certain proportion and knead. This method can avoid dust flying, and it is also beneficial for the colorant to be dispersed in the rubber, and the color is uniform. However, the content of the colorant in the color paste is low, the coloring is not high, the transportation volume is large, the loss is large, and the user is inconvenient to use.

There are two main methods for preparing pellets and colorants. The first method is the same as other powdery compounding agent granulation methods. The powdery colorant is first wetted with a surfactant, and then granulated by wax melting or resin extrusion. The second method is to use a colorant. After the surfactant is soaked, the colorant particles are refined by mechanical force to make a dispersion with a certain concentration, and then mixed with the latex to co-settle. After drying, it is rolled into pellets. The surfactants are mostly anionic and non-ionic, such as fatty acid salts, sulfonates, etc. Natural rubber latex is usually used. This granular colorant is convenient to use, has good dispersibility, no dust flying, no pollution to the environment, bright color, uniform hair color, and no color difference, and is a promising coloring method. However, the granular colorant has a complicated preparation process and high cost, which limits its wide application.

Masterbatch coloring This method is to first mix the colorant, some plasticizers and other rubber compounding agents with raw rubber through an open mill to make a colorant masterbatch with a concentration of about 50%, and then blend it in proportion Stained in rubber. This method is more effective for coloring particles with fine particles and difficult to disperse, with uniform color development and no color difference. When mixing, pay attention to the concentration of the colorant in the masterbatch and deduct the amount of other compounding agents in the masterbatch.