Butadiene is primarily used to make synthetic rubber, which accounts for about 61% of global consumption. The rest goes into plastics, latex coatings, and nylon production. It’s one of the most important building blocks in the petrochemical industry, with a global market valued at roughly $12.5 billion in 2024. If you’ve driven a car, worn sneakers, or chewed gum today, you’ve likely used a product made from butadiene.
Synthetic Rubber: The Biggest Use
About 30% of all butadiene goes into styrene-butadiene rubber (SBR), the material blended with natural rubber to make vehicle tires. Another 25% becomes polybutadiene rubber, which is also used in tires but shows up in footwear, sports equipment, and industrial belts as well. Together, these two types of rubber consume more than half the world’s butadiene supply.
Beyond tires, butadiene-based rubber appears in products that need to be flexible, durable, or resistant to specific conditions:
- Neoprene: Originally one of the first synthetic rubbers ever created, neoprene is made from chloroprene, a butadiene derivative. It’s the material in wetsuits, fishing waders, protective gloves, and foam padding for knee and elbow pads. Neoprene foam resists ozone, sunlight, and moisture, which is why it also serves as joint filler in masonry.
- Nitrile rubber: Nitrile-butadiene rubber (NBR) resists oil and fuel, making it the go-to material for automotive gaskets, seals, fuel hoses, and the disposable gloves used in medical and industrial settings.
- General rubber goods: Inner tubes, rafts, elevator belts, and industrial hoses all rely on butadiene-based rubber. Because rubber traps air and floats, it’s especially useful for products designed for water.
Latex Coatings and Carpet Backing
About 12% of butadiene production goes into styrene-butadiene latex, a water-based coating material. This latex gives printed paper its glossy, opaque finish. Catalogs, magazines, advertising flyers, thermal receipt paper, and coated cardboard all use SB latex coatings. It’s also the standard back coating in tufted carpets, where it locks the pile fibers in place and prevents fraying along cut edges.
ABS Plastic
Acrylonitrile butadiene styrene, better known as ABS, is a lightweight plastic that resists heat and impact. It takes up about 5% of butadiene supply, but you encounter it constantly. ABS is the plastic in LEGO-style building blocks, musical instruments like clarinets and recorders, hard-shell luggage, and laptop cases. Its shock-absorbing properties make it a practical choice for anything that gets dropped or bumped.
Nylon Production
Roughly 11% of butadiene is converted into a chemical intermediate called adiponitrile, which is then processed into one of the key ingredients for nylon 6,6. This type of nylon is used in textiles, automotive parts, and engineering plastics. The process, originally developed by DuPont, reacts butadiene with hydrogen cyanide to produce the intermediate, which is then further refined. Only a handful of producers worldwide operate this chemistry at industrial scale, which has historically made nylon 6,6 supply chains vulnerable to disruptions.
Everyday Products You Wouldn’t Expect
Chewing gum is essentially flavored, sweetened rubber. While the original gum base came from natural rubber, most modern chewing gum uses synthetic rubber that includes butadiene-derived polymers along with plasticizers and lanolin. Eyeglass frames and certain food packaging plastics are also made from butadiene-based materials. Recycled tire crumb rubber, itself a butadiene product, is used as the cushioning infill in synthetic turf fields.
How Butadiene Is Made
Butadiene is a colorless gas at room temperature with a boiling point of about negative 4°F (negative 4.4°C). It’s produced as a byproduct of steam cracking, one of the most important processes in the petrochemical industry. Steam cracking breaks down petroleum fractions at high temperatures to produce ethylene and propylene, and butadiene comes out as part of the leftover mixture of four-carbon molecules. A secondary source is the fluid catalytic cracking process used in oil refineries.
In its liquid (pressurized) form, butadiene requires careful handling. It can react with oxygen to form unstable peroxides, which may trigger uncontrolled polymerization. This creates what’s called “popcorn polymer,” a solid mass that can build enough mechanical force to rupture storage equipment or plug safety vents. Industrial suppliers add an inhibitor to prevent this and closely monitor its concentration during storage.
Health Concerns and Exposure
The average person doesn’t encounter pure butadiene, but trace amounts are in the air from vehicle exhaust, cigarette smoke, wood burning, and forest fires. Urban and suburban air typically contains between 0.04 and 0.9 parts per billion. You can also be exposed to small amounts through gasoline fumes on your skin or in the air at gas stations.
For workers in manufacturing plants, the risks are more significant. Chronic occupational exposure has been consistently linked to an increased incidence of leukemia. The National Toxicology Program classifies 1,3-butadiene as a known human carcinogen, and NIOSH considers it a potential occupational carcinogen. OSHA sets the permissible workplace exposure limit at 1 part per million averaged over a work shift, with a short-term ceiling of 5 parts per million.
For consumers, the butadiene in finished products like tires, ABS plastic, or neoprene is locked into polymer chains. It’s a building block that gets chemically incorporated during manufacturing, not a substance that off-gasses from your luggage or carpet in meaningful amounts.