Originally Posted by
dangerousbrian
i was talking in simple terms regarding bushes for cars! human dna is hardly a simple thing to explain..and you will find that dna can be synthetic anyway if it is modified...there are numerous meanings for the word poly and is often an abbreviation for other words...ie polygon..(multiple sided 2 dimensional shape)..but this is a thread about bushes for cars hence why i said simplest terms...
you attempted to state that poly and urethane in terms of bushes for cars was the same thing and even emphasized the word 'ARE' to clarify your belief. The correct meaning of the term poly and what it means with regards to polyurethane bushes was relevant as your explanation that it meant synthetic and that urethane was related to strength in synthetic materials was not correct.
The chemical components and compound structure which make up polymer based bushes will without doubt differ from each producer of such bushes so understanding the materials in use ensure the understanding that they are not all the same.