Skip advert
Advertisement

Bilt-Hamber Auto-Clay Medium clay bar

Great new clay from test winner fills the gap between its 'Regular' and 'Soft' options.

Bilt-Hamber Auto-Clay Medium clay bar

Price: £10.95 (200g)
Contact: 01277 658899, www.bilthamber.com

Winter weather means filthy bodywork. But while dirty water and mud can be easily shifted with a bucket and sponge, to remove contaminants such as brake dust before polishing you need a clay bar.

Bilt-Hamber’s Auto-Clay is our current favourite, and a new Medium smoothing clay bar has been added to the range to slot in between the Regular (our 2011 Best Buy) and Soft (for more frequent use) versions.

Advertisement - Article continues below

This bar is presented in a handy storage case, which prevents the clay from drying out and ensures it lasts longer.

We tore off a 15g chunk from the 200g bar, then set about our panel. The Bilt-Hamber doesn’t require a dedicated lubricant, just lots of water, so we kept the bonnet soaking wet while rubbing the clay back and forth. We then dried the bodywork with a microfibre cloth.

Afterwards, we ran a finger over the treated and untreated panels, and were impressed at how smooth the Auto-Clay had left our car. As you don’t need a lubricant, the £11 price equates to 55p per 10g of clay, so the Bilt-Hamber Medium is great value.

Verdict

Rating: ★★★★
What is it?
Bilt-Hamber's latest clay bridges the gap in its lineup between the Regular and Soft clay bars.
Problems?
Not as aggressive as rivals, no lubricant included.
Why buy?
Only need to use water to apply, great at shifting grime, top value for money.

Skip advert
Advertisement

New & used car deals

Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,145Avg. savings £2,380 off RRP*Used from £15,712
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*
MG MG4

MG MG4

RRP £27,005Avg. savings £10,288 off RRP*Used from £11,249
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,552 off RRP*Used from £14,799
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Ford Fiesta EV on the way under massive Renault tech share deal
Ford Fiesta exclusive image

New Ford Fiesta EV on the way under massive Renault tech share deal

Ford’s passenger-car business to get new lease of life thanks to Renault’s Ampere platform, paving the way for two new small EVs
News
10 Dec 2025
EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?
Electric car charging mega test - charging overhead

EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?

The head of the biggest EU party has told the press that from 2035, car manufacturers must reduce CO2 emissions by 90 per cent
News
12 Dec 2025
Apple CarPlay quietly gets a major upgrade: here’s what’s new
Apple CarPlay Ultra - vehicle

Apple CarPlay quietly gets a major upgrade: here’s what’s new

More widgets and the ability to switch off annoying pinned messages feature are all a part of iOS 26.2
News
8 Dec 2025