IV120 usually runs 118–122 g I₂/100g off our Dalian distillation line. We adjust the cut daily depending on crude feedstock, so it stays in that window without you needing to re-approve the spec after the first trial.
Most of what we produce goes into alkyd resins. The linoleic/oleic split in this grade runs about 52%/33%, which gives a predictable cure response - you don't have to rework your entire formulation every time a new batch arrives. We've had one customer in Malaysia run the same resin formulation for 18 months without touching their bake schedule. That kind of boring consistency is what actually matters in production, not some "premium grade" label.
Numbers that actually matter:
Acid value: typically 195–200 mg KOH/g, give or take 5 points. Moisture: kept under 0.3% because we pull vacuum properly, not because we have fancy drying equipment. Color monitored in Gardner units - we'll reject a batch that drifts more than two Gardner points within a single order. Not because of some written QC policy, but because we've had customers complain and it's not worth the headache.
For alkyd people specifically:
It's a medium-oil alkyd workhorse. Drying speed is decent without being aggressive - if you're doing air-dry industrial coatings, it behaves. Flexibility in the cured film is good; we've seen it hold up on metal substrates through temperature swings that crack more saturated fatty acid grades. Adhesion testing (cross-cut) typically passes without primer modification, though if your substrate is weird (galvanized, some plastics), run a small trial first - don't take our word for it.
Weather resistance benefits from that linoleic level, but be honest: if your coating is going to sit in direct UV for years, IV120 alone isn't doing the heavy lifting. Your UV package matters more than which fatty acid you're using.
Sustainability stuff (because people ask):
It's non-GMO soybean oil derived, renewable carbon content - we can provide documentation for REACH and similar frameworks. We're not going to oversell the "green chemistry" angle. It's industrial grade fatty acid, not a bio-premium product. But if your procurement specs require traceable bio-based content, this grade clears that bar without the price tag of dedicated bio-materials.
If you're formulating water-borne:
The unsaturated content in IV120 can be a bit lively if you're not used to working with it. Reach out and we'll talk through whether you should be looking at IV100 instead, or blending with a more saturated fraction. We'd rather point you to the right grade than have you fight with a material that's not quite right for your process.
Samples and orders:
Samples come from current production - 1kg or 5kg, not some separate "sample grade" that may not match what you'd actually receive by the ton. Send over your typical acid value range and how much moisture your process can tolerate, and we'll tell you straight whether IV120 is the right fit.
Packaging: 180kg drums if you want manageable handling, IBC totes if you're doing volume, bulk tanker if you've got the setup. Export loads go about 16–18 MT per 20ft FCL depending on packaging choice. Lead time is usually 10–15 days after order confirmation - faster if you're already on contract and we've planned the distillation schedule around you.
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