What is the density of ABS?
2 Answers
ABS density is 1.04~1.06g/cm3. ABS, full name Anti-lock Braking System. Functions of ABS: Maximize the effectiveness of the brakes, shorten braking time and distance. Effectively prevent vehicle skidding and fishtailing during emergency braking, ensuring good driving stability. Allows steering during emergency braking, providing excellent steering control. Avoids severe friction between tires and the ground, reducing tire wear. Working principle of ABS: During braking, ABS quickly determines the wheel lock-up state based on speed signals from each wheel speed sensor, closes the normally open input solenoid valve on the wheel that begins to lock, and keeps the braking force constant. If the wheel continues to lock, the normally closed output solenoid valve is opened, causing the braking pressure on that wheel to rapidly decrease due to the direct connection to the brake fluid reservoir, preventing the wheel from completely locking due to excessive braking force. This keeps the braking state always at the optimal point (slip ratio S of 20%), achieving the best braking effect and maximum driving safety.
I used a lot of ABS plastic parts when repairing my car before. Its density is about 1.04 to 1.07 grams per cubic centimeter, which doesn’t sound heavy, right? Due to the low density, the material is very lightweight. For example, when holding a bumper in your hand, a volume of one cubic decimeter weighs just over 1 kilogram. This reduces the overall vehicle burden, leading to lower fuel consumption and savings on gas money. I’ve replaced old-fashioned metal bumpers before—metal has a much higher density. After switching to ABS plastic, the car handles more responsively, making parking and turning effortless. The low density also makes the material easy to mold, simplifies processing, and lowers costs, which is very friendly for budget-conscious car owners. Checking part density during routine maintenance helps avoid overweight issues and extends service life.
