PVC stands for, Polyvinyl chloride (PVC), which is a thermoplastic polymer. This material finds its use in a very wide variety of applications and products. It is utilized every now and then due to its durability, ease of assembly, and cost. Due to its intrinsic properties, PVC is widely used to make promotional products such as table mats, coasters, keychains, etc.

The ODM team in China has recently visited one of our Dongguan suppliers to find out more about the processes in manufacturing PVC table mats. The factory holds 51-100 workers who strive to ensure top-notch quality of products. In this trip down, we will see the importance of industrial factory tours and quality control services to more readily oversee product creation and client satisfaction. Let’s take a look at the processes.

Manufacturing PVC Table Mats Factory Layout

Stages of Manufacturing PVC

Step 1: Open Mould 

The visit was made at a time where workers are in the midst of manufacturing PVC table mats. The very first step to this process is Open Mould. What does that mean?

The Open Mould process incorporates the spray-up (chopping) and hand lay-up moulding methods. A single-sided mold is used to act as the form and cosmetic surface of the part. Followed up by a gel coat applied to the readied mould. Workers will then apply reinforcements by hand and wet-out with catalyzed resin. Extra layers of overlay are added to construct thickness and desired quality. The Curing process will be the last step in open moulding where the air is rolled out of the laminate by hand and left to harden.

Manufacturing PVC

Manufacturing PVC

Step 2: Mix the correct color liquid PVC

The next stage will be color matching. Color matching is an extremely important component in a company’s branding. One of the elements that make up the character of the business and most of the promotional efforts ordinarily grounded on it.

The Pantone Matching System (PMS) is a standardized color matching system run by Pantone Inc. This dominant guide is widely adopted to match the specific color schemes chosen by clients to be produced in factories.

It is extremely crucial to meet the client’s color requirements. Thus, consistency is key with regards to matching brand hues from promoting efforts down to product materials.

Manufacturing PVC - Color Matching

Manufacturing PVC – Color Matching

Step 3: Inject the liquid PVC in mould

The third step, which is the trickiest step will be Liquid Injection Moulding (LIM). It is a modern technique that molds stock materials into a scope of segments and products. The difference between LIM and the standard injection molding process will be LIM’s focus on liquid silicone rubber and comparative elastomeric materials. The Automatic filling liquid machine is capable of efficiently producing a large number of items of not too intricate details.

In manufacturing PVC table mats, the liquid molding process used to fabricate the liquid PVC is a precise and distinct method that is fit to create exceptionally precise outcomes. Additionally, this stage will allow workers to brand the company design or logo onto the product mould.

Manufacturing PVC- Automatic Liquid Filling Machine

Manufacturing PVC- Automatic Liquid Filling Machine

Step 4: Baking

The fourth step will be Baking. After injection moulding of the colored liquid PVC, they will be placed in a PVC baking moulding machine. The machine uses pressure casting to remove any air bubbles from the moulds and hardens it. This hardening process will be done by the machine and not in other ways.

Manufacturing PVC- Baking Machine

Manufacturing PVC- Baking Machine

Step 5: Take-Off

The last and final stage of manufacturing PVC table mats will be Take-Off. After the baking process, when the mould hardens, they will be removed. Separating the product from the moulds depends on the shape and size of the product. In some cases, they can be removed by lifting and tapping it out.

Other cases, such as manufacturing PVC table mats, workers do so by using an air pressure gun to take out the finished product. The jet of air released between the edge of the mould and product helps free the rigid areas that cannot be flexed. Lastly, workers will clean off any dirt or dust on the products with a brush and package them for shipment.

Manufacturing PVC – Air Pressure Gun Removal

With that, we have completed the factory tour of manufacturing PVC table mats! The ODM Group certainly believes in conducting frequent factory tours and visits. It is important not only to build up a rapport with your suppliers but to clear up any misconception before shipping the products out. You can check out the video below for a virtual tour of the processes!

At ODM, we not only specialize in custom promotional product ideas and manufacturing of high-quality products, but we also help evaluate factories through factory visits. If you’re looking to market a product or require help in producing high-quality products, be sure to contact ODM for our expertise!

Related China Factory Blogs 

Here you will find out more information on The Importance of A Factory Visit:

Other than PVC, there are other factory visits that focus on producing products with other materials. Learn more about polyresin figurines and snow globes here:

Read more about this factory visit of watches and the different components to it:

If you are not interested in watches, fret not as we have blogs on factory visits for manufacturing sunglasses:

This blog will be a factory visit in Dongguan, China as well, but for plush toys production:

Frequently Asked Questions

What's the difference between Open Mould and Closed Mould?

An open mould has an opening at the top; an open container with a flat top. Whereas a closed mold has a cavity that is entirely closed by the mould with only a gatting system that leads from the mould to the outside cavity.

What are elastomeric materials?

An elastomeric material is any material exhibiting elastic or rubber-like properties. They are measured by elements such as material type, compound, and strength, etc.

What are some of the moulding considerations?

Preventing leaks: liquid moulding compounds can seep through gaps in the machine and impede operations. Thus, seals and sealant material are important elements in a moulding device, especially for moving or rotating parts. Inorganic fillers: Cause equipment to deteriorate at a faster rate. Thus, corrosion resistance treatments or increased maintenance are required to compensate for wear.