Flame retardant and non-flame retardant solid silicone rubber are two different types of rubber used in various industries. Flame retardant solid silicone rubber is a type of rubber designed to prevent and/or slow the spread of fire. It is typically used in applications where fire or high heat is present, such as the automotive and aerospace industries. Non-flame retardant solid silicone rubber does not have any flame retardant properties and is primarily used in applications where fire is not a concern, such as medical and food processing applications.

Flame-retardant solid silicone rubber is made from a blend of silicone oils, plasticizers and flame-retardant additives designed to resist burning and flame spread. Flame retardant additives typically include halogenated compounds, swelling chemicals, and other substances that form a barrier to flame spread. On the other hand, non-flame retardant solid silicone rubber does not contain any flame retardant additives, but is still made from a blend of silicone oil and plasticizers.

Flame retardant solid silicone rubber is usually more expensive than non-flame retardant solid silicone rubber. This is due to the added cost of the flame retardant additives used in the manufacturing process. Non-flame retardant solid silicone rubber is less expensive because it does not contain any flame retardant additives.

In terms of performance, flame-retardant solid silicone rubber offers excellent protection against fire and high temperatures. It is designed to resist combustion and slow the spread of flames, whereas non-flame retardant solid silicone rubber does not offer any flame retardancy.

Overall, flame-retardant and non-flame-retardant solid silicone rubber are two different types of rubber that offer different levels of flame resistance. Flame retardant solid silicone rubber is typically more expensive and offers superior fire protection, while non-flame retardant solid silicone rubber is less expensive but does not offer any flame resistance.