Chloe Zhang
Plastic weights are typically filled with concrete or cement. They were invented by Joe Newman in 1961, when he came up with the idea of coating concrete weights in plastic. This innovation allowed for weights to be used on surfaces like carpet and linoleum, and eliminated the need for a foundry, as they were rust-free. However, plastic weights have received criticism for being less durable than iron weights, with some users reporting that the plastic coating can peel off over time.
| Characteristics | Values |
|---|---|
| Plastic Weights | Plastic cases filled with cement or concrete |
| Plastic-coated barbell weights | |
| Plastic-covered weights | |
| Plastic-covered cement | |
| Plastic-coated concrete | |
| Rust-free |
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What You'll Learn
Plastic weights are often filled with concrete or cement
Concrete or cement-filled plastic weights are often significantly larger than iron weights of the same mass. They also tend to have a hole with a plug over it where the concrete or cement was poured in. While they are cheaper than iron weights, they are less dense, meaning fewer can fit on a given bar. They are also more prone to breaking down and leaking, and can be damaged by being dropped on hard surfaces or by exposure to humidity.
Some users prefer iron weights, which are longer-lasting and more space-efficient. However, plastic weights have the advantage of being lighter, which can be useful for high-rep exercises. They are also a good option for beginners who want to practice Olympic lifts at lighter weights, as they are more durable than rubber plates when dropped.
Plastic weights are often sold as a low-cost option for casual strength training, and can be a good choice for those who are unsure if they will stick to lifting as a form of exercise.
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They are cheaper than iron weights
Plastic weights are often cheaper than iron weights, but there is a trade-off in terms of quality and longevity. Plastic weights are typically filled with concrete or cement, which is less dense than iron, so more weight is needed to achieve the same effect. This means that plastic weights are often larger than their iron counterparts, which can be a drawback for those with limited storage space.
The lower density of concrete or cement-filled plastic weights also means that fewer plates can fit on a bar, which can be inconvenient for those looking to progressively load their bars with additional weight. Plastic weights are also more susceptible to breaking down over time, with the cement or concrete potentially cracking or leaking out of the plastic coating.
Iron weights, on the other hand, are known for their durability and longevity. While they may be more expensive upfront, iron weights can often be found second-hand at a good price, as they are built to last and are less likely to be discarded. Iron weights are also smoother and can hold more weight, making them a preferred choice for serious weightlifters.
However, plastic weights do have their advantages. They are often marketed as being suitable for home use, as they are rust-free and can be used on various surfaces without causing damage. Plastic weights are also lighter than iron, making them a popular choice for those looking to tone their bodies rather than build bulk. Additionally, plastic weights can be a good option for beginners or novice lifters, as they are often available at a lower price point and can be used for high-rep exercises to achieve a good pump.
While plastic weights may be cheaper than iron weights, the decision between the two ultimately depends on the user's specific needs and preferences. For those seeking a durable, long-lasting option that can accommodate heavy loads, iron weights are likely the better choice. However, for those on a budget who are looking for a lightweight, rust-free option for toning and high-rep exercises, plastic weights may fit the bill.
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They are bulkier than iron weights
Plastic weights are often filled with cement or concrete. They are bulkier than iron weights, with some users reporting that 10kg cement-filled weights are double the thickness of a 20kg iron plate. The larger size of plastic weights means that fewer plates can fit on a given bar. This can be a significant disadvantage when compared to iron weights, which can be stacked more closely together.
The bulkiness of plastic weights is due to the fact that they are filled with cement or concrete, which has a lower density than iron. This means that the same weight of cement or concrete will take up more space than the same weight of iron. For example, a 10kg cement-filled weight will be larger in size than a 10kg iron weight.
The larger size of plastic weights can also make them more difficult to store and transport. They may not fit as easily into weight racks or storage containers as iron weights. Additionally, the bulkiness of plastic weights can make them more challenging to handle and manoeuvre during workouts.
The bulkiness of plastic weights can also affect their performance in certain exercises. For example, in Olympic weightlifting, where the barbell is lifted overhead and then dropped, the larger size of plastic weights can make it more difficult to grip the bar and perform the lift correctly. The extra bulk can also affect the balance and feel of the barbell during the lift.
Despite the bulkiness of plastic weights, some users prefer them for certain types of workouts. Plastic weights are often marketed as a more affordable and beginner-friendly option for those new to weightlifting. They are also touted as being suitable for high-rep exercises and for use on carpeted or linoleum floors, as they will not damage the surface in the same way that iron weights might.
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They are not durable
Plastic weights are not durable. They are plastic cases filled with cement or concrete. The cement tends to break down over time and leak out of holes in the sheath. They are also wider and taller than iron weights. If you drop them on a hard surface, the plastic coating can crack, and the concrete can shatter. If you live in a humid climate, the concrete will absorb moisture over the years and expand, which can crack the plastic.
Iron weight sets, on the other hand, do not wear out. You can paint them, and they are as good as new. They are also cheaper than plastic weights.
One user on a forum said: "They [plastic weights] might look good in the beginning because they seem cheap - but in the long run, you are better off without them. They LOOK stupid, they just are not the real deal... And they just do not last."
Another user said: "I had a set [of plastic weights] many years ago and I pretty much considered them a "junior" set."
Therefore, it is clear that plastic weights are not durable and should be avoided.
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They are suitable for toning and high-rep exercises
Plastic weights are suitable for toning and high-rep exercises. They are often filled with cement and are a good option for those who want to try out lifting. Plastic weights are also great for toning workouts and high-rep exercises.
High-rep exercises with low weights are key to achieving a toned look. This type of workout helps build muscle endurance and muscle mass. It is recommended to start with lighter weights and gradually increase the weight as you build strength.
High-rep exercises can be performed with a variety of equipment, including light weights, bodyweight, or fitness classes such as The Bar Method. The Bar Method classes feature a range of high-rep exercises that tone the body, build strength, and improve overall fitness.
Additionally, a healthy diet paired with a regular barre routine can promote weight loss and improve posture. It is important to listen to your body and prioritize your health when determining a fitness training schedule or frequency of high-rep workouts.
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Frequently asked questions
Plastic weights are usually filled with cement or concrete.
Plastic weights are more prone to breaking down and leaking than iron weights. They are also bulkier and less durable.
Plastic weights are rust-free and can be used on carpets and linoleum. They are also cheaper than iron weights.
Yes, iron weights are a more durable alternative to plastic weights.
