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How does Golmate make Vacuum Insulated Stainless Steel Water Bottles? 2021-05-14

Since the invention of the insulated bottle, there have been questions of why vacuum insulated bottles keep beverages hot and cold for a long time and how to do that. This kind of special bottle was invented by Dewar in 1892, who created an insulated bottle by sealing one bottle inside another and pumping out the air between them. The vacuum containers that we can see now are a container within a container, with either foam or a vacuum between the inside wall of the outer container and the outside wall of the inner container. This method has proven highly efficient since the early 1900s, so it is still in use today.


Raw Materials

The most common materials that manufacturers use are plastic, stainless steel, and glass. Stainless steel can form the outer cup and inner cup. Plastic is used to form the exterior shell, while glass is for the inner cup in a general way. There are not only for metal water bottles but also thermal mugs and other insulated products.


The Manufacturing Process

The Foam

1. The foam is usually in the form of chemical balls when reached to the factory, and these balls can then react to generate heat.

2. Heat the liquid mixture slightly. (75-80° F)

3. Slightly cool down the mixture once the reaction is complete. And the liquid foam is formed.

The Bottle

1. To form the outer cup. If it is made of stainless steel, our experienced worker will pound it into the container shape according to the mold. If the outer cup is made of plastic, pellets of plastic resin are heated and forcefully blown into a mold in the desired shape during the blow molding process.

2. The formed outer container and the inner liner will be well-fitted in the process of an assembly line. The glass or stainless steel made filter will place inside the outer cup. Vacuum or foam will be added in the middle between the two containers in this process to form insulation.

3. Golmate usually applies vacuum technology to manufacture insulated products. A large vacuuming machine sucks the air from the space between the two cups.

4. To spray a silicone seal coating on the exterior, it keeps them to form a single unit.

5. Customize your products. Brand logos or specific patterns will be printed on the bottles. To take a look at How is a Design Added to Golmate Water Bottles?

The Top

1. The lids of the stainless steel water bottles, with or without the stoppers, are blow molded.

2. A qualified silicone ring will be set in the lid to prevent leakage.


Quality Control

Golmate's quality control team will inspect every product and make sure they are qualified before shipping. In addition to the quality inspections, we also test the finished product for cosmetic defects and also apply heat retention and leakage tests.


Golmate is devoted to exploring innovative products and bringing high-quality products to the international market. We are a reliable water bottle supplier promise to meet your needs. Golmate, go for a better future.


Stainless Steel Water Bottles

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