The Complete Guide to Classic Car Rubber Seals

When restoring a classic car, it’s easy to focus on paintwork, chrome and engine performance. But one of the most critical components often overlooked is the rubber sealing system.

High-quality rubber seals protect your vehicle from water ingress, wind noise, corrosion and long-term structural damage.

Why Rubber Seals Matter in Car Restoration

Over time, original seals become:

• Brittle

• Cracked

• Compressed

• Shrunken

This leads to leaks, draughts and rust — especially in the UK climate.

Replacing your seals ensures:

• Proper door closure

• Weather protection

• Reduced cabin noise

• Professional finish

Common Seals to Replace During Restoration

• Door seals

• Boot seals

• Window channel rubbers

• Windscreen seals

• Bonnet seals

At Seal Extrusions, we supply high-quality automotive rubber extrusions designed for durability and long-term performance.

Choosing the Right Seal Profile

Selecting the correct profile is essential. Consider:

• Panel gap size

• Compression requirements

• Mounting type (clip-on, push-fit, bonded)

• Material flexibility

If you're unsure, our team can help identify the correct extrusion for your restoration project.