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

Volkswagen Golf

Volkswagen Golf

RRP £24,625Avg. savings £2,565 off RRP*Used from £8,995
Renault Clio

Renault Clio

RRP £16,260Avg. savings £3,075 off RRP*Used from £7,195
Hyundai Tucson

Hyundai Tucson

RRP £29,585Avg. savings £6,027 off RRP*Used from £13,300
Vauxhall Corsa

Vauxhall Corsa

RRP £19,855Avg. savings £5,488 off RRP*Used from £9,630
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

SEAT Arona vs Hyundai Bayon: Cheap 'n' cheerful small SUV showdown
SEAT Arona vs Hyundai Bayon - front tracking

SEAT Arona vs Hyundai Bayon: Cheap 'n' cheerful small SUV showdown

SEAT has updated its long-running Arona SUV and Hyundai’s done the same with the slightly younger Bayon. We find out which one is best.
Car group tests
28 Mar 2026
Dacia targets 30% more UK car sales, thanks to good-value, larger cars
Dacia Striker- full front

Dacia targets 30% more UK car sales, thanks to good-value, larger cars

Dacia’s UK boss speaks to Auto Express about her bold plans to seize market share
News
27 Mar 2026
New Citroen 2CV: icon to be reborn for the electric era, and it’s coming soon
Citroen 2CV exclusive image 2026

New Citroen 2CV: icon to be reborn for the electric era, and it’s coming soon

The planets are aligned! Retro design buzz and rules promoting small EVs will see Citroen's most famous car rebooted
News
30 Mar 2026