Enamel baths — whether cast iron roll-tops or pressed steel panel baths — are among the most durable bathroom fixtures available. Many are over 50 or even 100 years old and still in regular use. But enamel chips, and when it does, it’s immediately noticeable — the white, glassy surface gives way to a dark, rough patch that looks and feels wrong. Professional enamel repair can address most chips and restore the bath to an excellent condition.
What Is Enamel?
The enamel on a bath is a glass-like coating fused to the metal substrate at high temperature. It’s hard, smooth and hygienic — but it’s also brittle, which is why it chips under impact rather than denting like the metal beneath. A chip in enamel typically removes a small piece of the coating clean, exposing the grey cast iron or steel below.
DIY vs Professional Enamel Repair
DIY enamel repair kits are available from hardware stores. They typically consist of a two-part epoxy filler and a small tin of white paint. Results are usually disappointing — the filler shrinks as it cures, the paint doesn’t match the original gloss level, and the repair is often more visible than the original chip. Professional repair uses enamel-compatible compounds that bond firmly to the existing surface, cure without shrinkage, and are finished to match the surrounding gloss level precisely.
Colour Matching Enamel
Most enamel baths are white or off-white — but “white” covers a wide spectrum. Older cast iron baths often have a warm, slightly yellowed white that’s very different from the bright stark white of a new steel bath. Our technicians assess the bath’s tone before mixing the repair compound to ensure the match is as close as possible to the aged finish of the surrounding enamel.
What Enamel Repairs Can Address
- Chips — the most common damage; repaired by filling and polishing
- Crazing — a network of fine surface cracks in older enamel; can be stabilised and improved
- Scratches — fine scratches in the glaze can sometimes be polished out
- Rust spots — where enamel has worn through and the metal has begun to rust; cleaned, treated and re-coated
