The one most people need, most of the time.

Claying is one of the most satisfying things you can do for your car — you can actually feel and hear the difference as you work. It's like exfoliating your paint. Paint is porous, just like your skin, and over time contaminants like industrial fallout, brake dust, tree sap and road grime embed themselves into the pores. A clay bar is a sticky, pliable substance that grabs those contaminants and pulls them out — leaving paint that feels genuinely smooth, looks better, and is properly prepared for whatever you want to apply next.

Even a brand new car will benefit from claying. By the time it reaches you it's been through the factory, storage, shipping, the port, a dealer forecourt and the drive home. There's more in those pores than you'd think.

The Rockcar Medium Clay is the bar we recommend for most people and most situations. It strikes the right balance between speed, contamination removal and safety. It works faster than the light bar and removes more, while still being safe enough for a careful home detailer to use with confidence. If you're not sure which grade to choose, start here.

Why clay before coating or waxing? If you're planning to apply a ceramic coating, wax, glaze or sealant, claying first isn't optional — it's essential. Coatings bond to bare paint. Contaminated paint means your coating is bonding to the contamination, not the paint itself, which means it won't last or perform as well. Clay first, coat second. Always.

A few important tips:

• Always use plenty of clay lube — we recommend the Autostolz Quick Detailer & Clay Lube as it's formulated specifically to maximise lubrication without breaking down the clay. Soapy water can work in a pinch but most car wash soaps contain surfactants that break clay down faster — what you save on lube you spend replacing clay sooner
• Work in the shade on cool paint
• Tear off around a third of the bar at a time and keep the rest sealed — if you drop a piece on the ground, throw it away immediately. It will have picked up grit and will scratch your paint. No exceptions
• Fold the clay over on itself regularly as you work to bring a fresh surface to the front
• Once you're done claying, always apply a layer of protection — wax, sealant or ceramic coating

Not sure which clay to choose?

• 🟢 Light — safest, easiest, best for beginners and lightly contaminated paint
• ⬜ Medium (this one) — faster, removes more, best for most people and most situations
• 🔴 Heavy — maximum contamination removal, for professional and semi-professional use, higher marring risk, polish after use
• 100g bar
• 70×55×19mm
• Medium grade — balanced speed and safety
• Colour: White
• Made in Malaysia
• Do not use on matte, satin or wrapped surfaces

Want everything in one box? Grab the Rockcar Clay Kit — it includes a bar of medium clay, a pack of Rockcar Roadie cloths and a bottle of Autostolz Quick Detailer & Clay Lube. Everything you need to get started.

A note on clay bar weights: not all 100g clay bars are actually 100g. We've stopped stocking certain brands after discovering their bars were significantly underweight — you were paying for 100g and receiving considerably less. The Rockcar clay bars are a genuine 100g. We weigh them.