A drum of cobalt octoate 12% holds twice the deliverable cobalt of a 6% drum, and exactly the same molecule. The percentage on the label is dissolved cobalt metal in the carrier, not purity. Production explains the label. Every commercial…
Zirconium octoate 18, stannous octoate T9, potassium octoate 15 in DEG: three labels from three industries, one parent acid. Every commercial metal octoate is a salt of 2-ethylhexanoic acid (2-EHA, CAS 149-57-5) carrying a different metal. The acid contributes hydrocarbon…
The 2400 in HPEG 2400 is a nominal figure, not a measurement. The line that pins the side chain is the hydroxyl value, and on published commercial specifications it spans a band about 18% wide. HPEG 2400 is methallyl alcohol…
Every metric ton of polyvinyl butyral (PVB) interlayer film carries roughly 260 kg of a single plasticizer: triethylene glycol di-2-ethylhexanoate, or TEG-2EH. TEG-2EH (CAS 94-28-0, also sold as 3G8) is produced from 2-ethylhexanoic acid in three stages: esterification with triethylene…
As of early 2026, a kilogram of HDPE and a kilogram of polypropylene quote within roughly 10-20% of each other, both stamped “chemically resistant” on the quote. So the part gets sourced on price. I’ve watched that one decision crack…
BASF’s current datasheet for PA66 with 25% glass fiber prints two numbers for every mechanical property: a dry-as-molded column and a conditioned column. Tensile modulus reads 8600 MPa dry and 6500 MPa once the part equilibrates to ambient humidity. The…
A snap-fit dispenser lid, a solvent-contact bin, and a painted housing are three different material decisions, and only one goes to ABS. The reputation that ABS is the better engineering plastic holds up right until a part has to flex…
A polypropylene data sheet usually carries four temperatures — a melt point near 165°C, an HDT near 85°C, a Vicat near 100°C, and a continuous-use figure near 90°C. To a buyer scanning the COA, they all read like “the heat…
Polypropylene is a plastic — one specific thermoplastic in the polyolefin family, not an alternative to plastic the way the question often gets asked. “Plastic” is the parent category that also covers polyethylene (PE), PVC, PET, and polystyrene (PS). So…
Both polyethylene and polypropylene land in your warehouse as off-white pellets with a density near 0.91 and a single MFI on the COA. The pellets tell you almost nothing about which one belongs in your part. A converter choosing between…