Blown Linseed Oil
Blown linseed oil is linseed oil that has been oxidized by blowing air through it at elevated temperatures, increasing viscosity for use in paints and varnishes. Classified under HTS 1518.00.40.00 as an oxidized (chemically modified) vegetable oil unsuitable for food use.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not sufficiently oxidized or polymerized
Minimally processed linseed oil remains under crude/pressed vegetable oils in heading 1515.
If pre-mixed with pigments/driers as paint base
Ready-to-use paint vehicles containing modified oils fall under Chapter 32.
If for dehydrated residues or foots from processing
Processing residues like soap-stocks from modified oil production go to heading 1522.
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Import Tips & Compliance
• Provide processing certificates proving air-blowing/oxidation to distinguish from crude linseed oil in 1515
• Test for acid value and viscosity specs to confirm industrial modification standards
• Use DOT shipping papers for flammable viscous oils during transport
Related Products under HTS 1518.00.40.00
Epoxidized Soybean Oil
Epoxidized soybean oil is produced by chemically modifying soybean oil through epoxidation, converting double bonds into epoxide groups for enhanced stability. It falls under HTS 1518.00.40.00 as a chemically modified vegetable oil fraction used primarily as a plasticizer and stabilizer in PVC production, not for human consumption.
Polymerized Castor Oil
Polymerized castor oil undergoes heat treatment in vacuum to form high-viscosity polymers used in lubricants and coatings. It qualifies for HTS 1518.00.40.00 as a heat-polymerized vegetable oil fraction, inedible for industrial applications.
Sulfurized Mineral-Lard Oil Blend
This inedible preparation combines sulfurized lard oil with mineral oil for extreme pressure metalworking lubricants. HTS 1518.00.40.00 covers such mixtures of chemically modified animal/vegetable fats not elsewhere specified.
Dehydrated Tallow Fatty Acids
Dehydrated tallow fatty acids result from water removal and distillation of animal tallow, used in soap noodles and rubber processing. Classified in HTS 1518.00.40.00 as chemically modified (dehydrated) animal fat fractions.
Oxidized Fish Oil
Oxidized fish oil is chemically modified by controlled oxidation to raise peroxide value for leather tanning and printing inks. HTS 1518.00.40.00 includes such inedible modified marine oils.
Heat-Polymerized Coconut Oil
Heat-polymerized coconut oil is vacuum-heated to dimerize fatty acids, creating viscous products for cosmetics and polishes. Falls under HTS 1518.00.40.00 as polymerized by heat in vacuum vegetable oil.