Are Delrin and POM the same thing? Sorry for the stupid question!
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Thanks 
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Huh interesting
In most applications, Delrin® and acetal copolymer can be interchanged because many material properties are within approximately 10% of each other. Notably, the most significant difference between Delrin® and copolymer acetal relates to what is commonly known as centerline porosity – an inherent characteristic of Delrin®. It is most prominent in thick slab and large diameter rod stock. Visually, it is clearly evident around the center portion of a rod, which extends down the entire length. In sheet, porosity appears as a line along the center of each cut edge. In some cases, the slab may appear to be laminated or glued together.
Delrin is a softer plastic that can be machined like aluminium.
Since it is softer it does not crack as easily as other plastics, but it does show gashes more readily if you slam it on the ground.
POM is kind of the equivalent of non-name-brand Delrin. It is very similar except in most cases (but not all) POM yoyos are molded.
Polycarbonate is a harder plastic so it has a greater tendency to crack, but it does not show gashes as much as the other plastics.
Delrin and POM are also slightly heavier than Polycarbonate. All are good for yoyos, but for different reasons.
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Delrin is POM. Not kind of.
POM-C vs. POM-H. Both POM.
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Tbh I’ve yet to see an injection molded POM yoyo. PC yoyos sure, but no POM afaik.
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YYF Whip and Loop360 and One are all injection molded POM.
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Oh they are? Neat. No wonder they’re indestructible.
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