Why Are Your Glass Jar Metal Tinplate Lids Rusted?
If you encounter this situation----metal lids are rusted, you and your company must be in great pain!
When the tinplate metal lids are rusted, not only do you lose the lid, but the food(such as hot sauce, pickles, plum wine, honey, bird-nest, etc.) in the glass jar can also cause pollution. And more importantly, it can affect your brand.
Because, in different canning environments, food liquids in glass jars can come into contact with poor quality or unsuitable metal lids. And the liquids can slowly penetrate the lid material, making it susceptible to oxidizing reactions.
Many factors can determine a high-quality metal lug, such as thickness, coating, printing, manufacturing process, and advanced manufacturing equipment
As a professional glass packaging supplier, let us help you choose the most suitable metal closures lid for your company.
How To Buy No-rusty Tinplate Metal Lids For Glass Jars And Glass Bottles?
Firstly, it is necessary to choose a professional and trustworthy factory. Kindly tell us what food products need to be canned into glass bottles or jars.
Will it be heat sterilized after canning by machine?
Or will the oven be used when hot filling?
So we will recommend a suitable metal cap that matches your glass jars
Because the material of the tin lid is tinplate( SPTE : Steel Plate Tin Electrolytic ). Due to the different metallic properties of iron and tin, the two metals are prone to oxidation reactions under natural conditions. Leading to corrosion and rusting of the metal lugs.
However, when making a suitable and high-quality metal twist off lug, there is basically no need to worry about this issue. As the tinplate is treated with rust prevention before the metal screw lid is formed.
We will use lubricating and acid resistant canned food coating printing materials. This not only beautifies the metal caps but also uses printing ink and a surface layer of varnish to provide double-layer protection for the iron material.
Why Our Tinplate Metal Lids Are High-quality and No-rust?
Our tinplate lid is coated with a layer of food-grade ink, which provides significant protection for our food and lid. The surface printing ink used in tinplate is environmentally friendly and can come into direct contact with food, which is harmless to the body. Food-grade ink can pass FDA and SGS testing in the United States and can come into direct contact with food. Children can eat it with peace of mind, and adults can rest assured
Therefore, we will produce the most suitable tinplate metal lugs for your glass bottles packaging based on your specific needs through different manufacturing processes and materials.
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