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

Skoda Kodiaq

Skoda Kodiaq

RRP £39,045Avg. savings £3,528 off RRP*Used from £8,970
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,535 off RRP*
Volkswagen Polo

Volkswagen Polo

RRP £14,480Avg. savings £1,925 off RRP*Used from £6,888
Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £7,528 off RRP*Used from £11,213
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Renault Twingo 2026 review: a brilliant electric city car
Jordan Katsianis with the Renault Twingo

New Renault Twingo 2026 review: a brilliant electric city car

The new Renault Twingo EV is clever, good-looking and a delight to drive
Road tests
31 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
Car Deal of the Day: Lexus LBX is a true junior luxury SUV for just £215 a month
Lexus LBX - front cornering

Car Deal of the Day: Lexus LBX is a true junior luxury SUV for just £215 a month

Small in size but big in character, the Lexus LBX is our Deal of the Day for 30 March
News
30 Mar 2026