Skip advert
Advertisement

Koch Chemie Rkb review

Koch Chemie Rkb
Overall Auto Express rating

3.0

Price: £22 Clay weight: 200g
Contact: www.reepgroup.co.uk

This German product’s full name is Reinigungsknete blau and it’s essentially a mild cleaning clay. It made steady rather than spectacular progress, but was clearly working and could be used with water and a bit of car shampoo as a lubricant. Comes in a plastic snap shut case with good instructions in English. But it’s the most expensive clay-only option.

Skip advert
Advertisement

New & used car deals

Audi A3

Audi A3

RRP £26,295Avg. savings £3,075 off RRP*Used from £10,295
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,737 off RRP*Used from £11,749
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £2,073 off RRP*Used from £8,450
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £6,054 off RRP*Used from £12,695
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Ford Puma will offer BlueCruise hands-free driving from 2026
Ford Puma - front cornering

Ford Puma will offer BlueCruise hands-free driving from 2026

Ford’s BlueCruise technology allows for ‘hands off’ driving on designated stretches of motorway
News
13 Nov 2025
Want the best used car? Take a good look at the previous owner
Opinion - owners

Want the best used car? Take a good look at the previous owner

Auto Express’ senior content editor explains why some good old-fashioned detective work can help you find the very best second-hand buy
Opinion
16 Nov 2025
Hyundai Ioniq 9 vs Peugeot E-5008: electrifying 7-seat EV shootout
Hyundai Ioniq 9 vs Peugeot E-5008 - front tracking

Hyundai Ioniq 9 vs Peugeot E-5008: electrifying 7-seat EV shootout

Hyundai and Peugeot provides different takes on the roomy seven-seat EV. So, which is better?
Car group tests
15 Nov 2025