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Discounts, Freebies & Detailing | Black Friday 2023

Discounts, Freebies & Detailing | Black Friday 2023

We've gone all out for Black Friday this year at Slim's... it is one of our favourite times of the year after all!

Kickstarting the Christmas shopping period, we want to offer a variety of deals so that there's something for everyone - whether you're just starting out, replenishing your supplies, or simply gift shopping!

Even if we're British, there's no rule saying you can't spoil your car (and yourself) absolutely rotten this Black Friday with these unmissable deals... so what are you waiting for?!

15% off EVERYTHING* with code BLACK15

Entering BLACK15 in the discount box at checkout allows you to unlock 15% off eligible items in your cart! Your choice of products, with a discount on us - normal exclusions apply.

Selected Koch-Chemie at 25% Off!

No code required for this bargain! The following Koch-Chemie products have been given a 25% discount:

Soft 99 Fusso Coat at 25% Off + FREE Shampoo*

Soft 99 is offering 25% off Fusso Coat in light or dark, with a free of charge Qjutsu Creamy Shampoo included when purchased!

RUPES Polisher Savings

The LHR15ES/STD and HR81ML/STB are both included in the Black Friday fun, with generous reductions! 

Detail Guardz Discounts!

Slim's Bucket + Detail Guardz Dirtlock Bundle - £18.50


The Slim's Bucket and DG Dirtlock bundles have been reduced to £18.50 for all colour variants! A choice between a white or grey bucket, and a choice of 5 Dirtlock colours... the possibilities are (almost) endless.

Detail Guardz Scrub & Pump Attachment - £9.95*

In either black or white, you can grab the Detail Guardz Scrub & Pump Attachment for just £9.95 - a possible addition to your bucket + Dirtlock bundle...

Detail Guardz Pad Washer System - £37.95*

In either black or white, the Detail Guardz Pad Washer System is now £37.95 - another possible addition to the bucket + Dirtlock bundle.

Freebies when you spend £30 on Auto Finesse

Spending £30 on Auto Finesse after discount means that you are eligible to receive any of the following products free of charge:

  • Imperial Wheel Cleaner (500ml) – not pictured
  • Dressle All Purpose Dressing (1L)
  • Renew Paint Restorer (500ml)
  • Reactive Wheel Cleaner (1L)
  • Gloss Tyre Dressing (500ml)
  • Crystal Glass Cleaner (1L)
  • Citrus Power Bug Remover (500ml) – not pictured
Freebies when you spend £25 on Gtechniq

Spending £25 on Gtechniq after discount means that you are eligible to receive a keychain and a 50ml sample of W3 Ceramic G-Wash free of charge!


To find all these great offers in one place, click here!


Now we've got the fun stuff out of the way, it's time for the important bits... boring, maybe, but VERY important for enjoying this deal with us!

Retail Terms and Conditions

  • *Excludes 3M, kit combos, equipment, polishers, and already discounted products. Subject to availability.
  • RUPES LHR15ES/STD, Detail Guardz Scrub & Pump and Pad Washer, and Soft 99 offer will continue to run through to our Christmas promotion.
  • Offer runs Monday 20th November @ 3pm until Monday 27th November @ 11:59pm. 
  • Discount code: BLACK15 must be entered at checkout.  
  • No code is needed for applicable freebies, product will be added to your order by our team. 
  • Freebies offers run while stocks last. 
  • If there is an order value needed in order to qualify for a freebie, this value is calculated after any discount has been applied.  
  • Koch-Chemie, Soft 99, RUPES, and Detail Guardz products are discounted on site, no code is needed.
  • RUPES BigFoot Nano Long Neck is an introductory offer, this product is new to our site and will remain discounted while stocks last.
  • No other discount code or Trade Account discount can be used at the same time.  
  • You'll still earn your Slim's Reward Points! 
  • We cannot guarantee next-day delivery during promotional periods. 
  • Offers are available online, in-store, and by telephone. 
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