ASA: The Lesser Known Cousin of ABS

vance-and-coy-2

How exactly did the word cousin become synonymous with similarity? How many times have you heard someone refer to one thing being the close cousin to another thing like granite is a close cousin of marble or a planet in a distant solar system being Earth’s cousin? I don’t know about you but I am not that much like any of my cousins. Maybe it’s just me.

Anyway, you could say that ASA is a close cousin to ABS. ASA is ABS with one ingredient changed out.

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Plastic Weathering Demysitfied

Old Car Desert

One the biggest technological advancements in plastics over the last 30 or so years have been the improvement in UV stability. I can remember how fast vinyl dashboards in cars used to split and crack from sunlight exposure. Today, you rarely see that until the car has been in the junk yard for a few years. Even white vinyl siding and fencing seem to hold their color reasonably well for a decade or more. This is thanks to additives manufacturers developing really sophisticated stabilizers and anti-oxidants that can be compounded into various plastic materials.

In this post, I wanted to de-mystify what causes UV damage to plastics and how UV stability is tested.

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