£6.95 Exc. VAT £5.79 Price per unit £17.38/L
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Product Details

Fast acting solution that quickly penetrates hard to reach areas whilst loosening seized fixings, stuck or rusted moving parts. Highly water resistant. Includes smart straw feature.




WD-40 Specialist Penetrant specifically targets corroded or rusted components and mechanisms. Its formula loosens stuck or seized parts quickly and easily. The penetrant has an extremely low surface tension, meaning it can cut through rust, seams and tightly bonded threads to easily saturate and lubricate seized fixings. The Smart Straw and 360° valve allow it to be used precisely at all angles, and the capillary action of the formula means it can reach tight and hard to reach spaces. Highly water resistant, Fast Release Penetrant can also displace moisture that may be disrupting smooth movement and can be used as a preventative to prohibit the buildup of rust and corrosion in the future. Use in temperatures ranging from -20°C to +90°C, on materials such as metal, rubber, plastics, alloys and most paints.

Technical Specification
Brand WD40
Unavailable offshore
Manufacture ID 44362
Safety Data Sheet click here
Volume (L) 0.4
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free


Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Reviews
WD-40 Specialist Fast Release Penetrant 400ml is rated 5.0 out of 5 by 7.
Rated 5 out of 5 by from Does what it says on the can Really does the job - we had several stuck bolts and a bake caliper to free up. Without this, I'd still be there cursing!
Date published: 2019-11-13
Rated 5 out of 5 by from Not much good for cooking with Not much good for cooking with but great for releasing stuck bolts and screwed threads. Seem to be a little flammable under the blow torch too!
Date published: 2019-09-13
Rated 5 out of 5 by from Excellent! Excellent! Used it to get some very rusty bolts off my car. Sprayed it left it for 5 mins and they came off with ease. Definately reccomend this
Date published: 2019-08-07
Rated 5 out of 5 by from It works! I was struggling with standard WD40 to free some very rusty nuts. Applied this and got them free in a couple of days.
Date published: 2019-03-11
Rated 5 out of 5 by from Ian Scott This product is very good love it
Date published: 2018-06-24
Rated 5 out of 5 by from The one and only Works fast great product love it
Date published: 2018-06-06
Rated 5 out of 5 by from Fantastic service Best prices and next-day delivery. Doesn't get any better!
Date published: 2018-02-26
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