Adhesive (Marine) - What is a marine adhesive?
At Label Planet, we use this term to refer to the permanent adhesive used to make our waterproof marine labels (MWP, MWPE, MWPO, MWPP), which is a clear acrylic-based permanent adhesive that is BS5609 part 2 approved. BS5609 is a standard that lists the requirements that must be met to ensure that a label fits the criteria for use in marine and extreme environments. The most common application for this type of label is chemical drums that are used to store waste (and are shipped overseas); if one of these drums were to fall overboard, the label MUST remain in place so that the contents remain identifiable as dangerous waste. Companies who are transporting dangerous goods overseas are subject to a number of safety regulations (e.g. Merchant Shipping Regulations, the International Maritime Dangerous Goods (IMDG) code, and/or the Globally Harmonised System of Classification (GHS), among others), which will require that the labels applied to these goods meet the British Standard BS5609, which is an internationally recognised standard for labels that are to be used on goods that will be shipped overseas.
The BS5609 standard is a multipart certification also known as the “Marine Immersion Testing” standard. Sections 2 and 3 of the certification list the requirements and testing methods that are used to determine if the face material and adhesive used to make a label (part 2) and the printing inks, ribbons, toner, and/or printing systems used to print a label (part 3) are suitable for use in marine conditions. A printed label CANNOT be tested under section 3 of the standard unless the label itself has already met the requirements of section 2.
Part 2 tests the durability and permanence of the face material and adhesive; testing includes accelerated aging tests, such as exposure to artificial weather to simulate salt spray and sunlight (to test dimensional stability, colourfastness, and resistance to weather), temperature cycling (exposing the labels to high and low temperatures for sustained periods of time), and adhesion tests, which include applying the labels onto test blocks that are then left in sea water at mid-tide for three months.
Part 3 likewise tests the durability of the print that is added to the labels; testing takes place using a specific set of printing inks, toners, or ribbons and a specific printing system. It includes tests for print key effectiveness (by testing resistance to print removal using adhesive tape), abrasion resistance and print legibility (by exposing the label to a mixture of sand and artificial sea water), print permanence and colourfastness (by exposing the label to artificial salt spray and sunlight). Similarly to part 2, the printed label must also be able to undergo three months submersion in salt water conditions.
While the BS5609 certification can be used to certify that labels are suitable for highly specific applications (such as chemical drums), it is also used as a general indicator that a particular label product is extremely robust and durable and therefore suitable for a range of applications that may include exposure to unusual conditions (for example, labels that are to be used outdoors). At Label Planet, our MWP, MWPE, MWPO, and MWPP label ranges are all made with a marine adhesive and have been successfully tested according to the requirements of BS5609 part 2.Go Back to Glossary