It goes without saying: The strongest people in the world wears jackets. You cannot image soldiers, firemen or welders doing their jobs without their uniforms. Now image stainless steel banding and cable ties which are used in the roughest oil rigs to the deepest submarines. These environments demonstrate that as strong as the metal is, stainless steel is not invincible. This is why some banding should have plastic jackets (polymer coating)
The big 3 reasons for protection:
A polymer coating is useful for three main reasons:
⦁ Provides extra corrosion protection for banding or cable tie
⦁ Guards against galvanic corrosion
⦁ Acts as a cushion layer between hard stainless steel and softer paint or cable jacket
Provides extra corrosion protection
Image a strong man wearing a strong jumpsuit. You can really count on him to get the job done. When it comes to banding, the polymer coat is used to keep salt water off of the surface of the stainless steel. This means the tie or banding can live a longer life.
Galvanic corrosion is an accelerated type of corrosion that occurs when two electrically dissimilar metals are in contact in the presence of a conductive medium, for example, salt water. Imagine two enemies being put in the same room together and to make things worse. Both people will begin to deteriorate and now when you add in alcohol, their meltdown is accelerated and inevitable.
One way to prevent galvanic corrosion is to put a non-conductive (insulating) layer between the two metals to prevent direct contact. The polymer layer on coated stainless steel banding or coated stainless steel cable ties provides the insulating layer.
Stainless steel banding and cable ties are strong and hard. Some objects fastened by cable ties have softer surfaces than stainless steel, for example cable jackets or any painted object. In the presence of vibration or pitching & rolling there is a risk of deterioration of the softer surface due to abrasion.
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