If you’re considering using a TPU or silicone product for your project, you might wonder which one is better. In this blog post, we’ll compare the pros and cons of each material to help you make a decision.
TPU vs. Silicone: The Pros and Cons
What is TPU?
Thermoplastic polyurethane (TPU) is a polyurethane plastic with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Polyurethanes were first developed in the 1930s. TPU is a thermoplastic because it can be molded and reshaped with heat. It is also urethane because it contains the urethane functional group.
What is silicone?
Silicone rubbers products are widely used in industry, and there are multiple formulations. Silicone rubbers are often one- or two-part polymer systems; they typically contain cross-linked networks of silicon-oxygen atoms (siloxanes). The main difference between silicones and other rubber elastomers is that silicones contain silicon atoms rather than carbon atoms. They are generally more resistant to high temperatures than organic rubbers but have inferior mechanical properties.
The Pros and Cons of TPU
– TPU has a wide range of hardness (Shore A10 – Shore D50) which makes it ideal for a variety of applications
– Good abrasion resistance
– Excellent moisture barrier properties & low water absorption
– Outstanding clarity & transparency
– Good processability on conventional extrusion equipment
– Not as UV stable as some other materials like silicone
– Lower temperature limit -40°C/40°F
The pros and cons of silicone
– Wide temperature range: -55°C to +300°C
– Electrical insulation properties
– Excellent moisture resistance
– Good chemical resistance
– Excellent compression set
– Not as transparent as TPU
– Poor abrasion resistance
Which is better?
Silicone: the pros and cons
TPU and silicone each have unique pros and cons that should be considered when deciding which to use. TPU is more durable and resistant to tearing, while silicone is more flexible and can withstand higher temperatures. Ultimately, your best choice will depend on your specific needs and preferences.
Which is better for you?
If you need a material that is durable and resistant to tearing, then TPU is the better choice for you. Silicone is the better choice if you need a more flexible material that can withstand higher temperatures.
In conclusion, when deciding between TPU and silicone, it is important to consider the pros and cons of each. TPU is more durable and resistant to tearing, but silicone is more flexible. Ultimately, the decision between TPU and silicone comes down to personal preference and the material’s intended use.