Long-lasting durability

If a sentence contains 'long-lasting durability,' is it redundant?

For example: Robust plastic construction ensures long-lasting durability.

Long-lasting and durability, do they mean the same thing?

Thank you

It can be redundant, but not always.

When being used in scientific writing to describe a physical property, you substantiate it with some sort of measurement or quality descriptor. "Durability" is the attribute being measured. "Long-lasting" is the measure of how durable it is.

If a plastic construction only held together for a matter of seconds before falling apart, I could still say it is durable. I just left off the important measure of it being "not very" durable and having "short-lasting" durability relative to what one would expect.

When used in everyday writing, "durability" does imply long-lasting or strong.