EPDM rubber and silicone are two different types of elastic materials, and there are some differences in their properties and application fields.
1. Properties:
EPDM Rubber (Ethylene Propylene Rubber) : EPDM is a synthetic rubber with excellent resistance to aging, ozone, acids and alkalis, and heat. It also has excellent electrical insulation properties and elasticity, and is able to maintain its physical properties over a wide range of temperatures.
Silicone: Silicone is a polymer compound composed of the elements silicon, oxygen, carbon and hydrogen. It has excellent heat resistance and can withstand extreme temperature conditions, as well as good softness, elasticity and insulating properties.
2. Application areas:
EPDM Rubber: EPDM rubber is widely used in the automotive industry for making seals, pipes, wings, etc. It is also used in the construction and engineering fields as roof waterproofing materials, sealing strips and anti-vibration materials. In addition, EPDM rubber is also commonly used for wire and cable insulation and electrical insulation parts.
Silicone: Silicone is commonly used in food processing, medical devices, electronics and aerospace. Due to its high temperature and chemical resistance, silicone is often used as seals, protective coverings for electronic components, moulds and manufacturing materials for medical devices.
3. Waterproof performance
Silicone has excellent waterproof properties. It has excellent water resistance and maintains its physical properties in wet environments. Silicone is a non-polar material and therefore will not be permeated or absorbed by water, providing reliable waterproof protection. Silicone is often used as a key component of seals, waterproof coatings and waterproof adhesives.
EPDM rubber also has good waterproof performance. It is a synthetic rubber with excellent resistance to aging, ozone, acids and alkalis.EPDM rubber is commonly used in areas such as waterproofing of building roofs, sealing of pipes and automotive seals. It can effectively stop moisture penetration and provide a reliable waterproof barrier.
Overall, both Silicone and EPDM rubber offer good waterproofing properties, but the exact choice depends on the requirements of the particular application. If waterproofing is required in high-temperature, chemical and food-processing environments, silicone may be more suitable. In contrast, EPDM rubber is often a common choice for waterproofing in construction and automotive applications.
EPDM rubber is used in a wide range of applications in the automotive, construction and electrical sectors, while silicone is more commonly used in specialised environments such as high temperature, chemical and food processing. However, the exact range of applications also depends on specific needs and requirements.
