Rust Penetrant & Cleaner Spray with Flexible Straw | WD-40
UPC 0 79567 30048 9
UPC 0 79567 30048 9

WD-40® Specialist® Penetrant with Flexible Straw

A fast-acting formula with attached 8-inch flexible straw that bends and keeps its shape, giving you unlimited access to hard-to-reach jobs.

WD-40® Specialist® Penetrant with Flexible Straw has a fast-acting formula with attached 8-inch flexible straw that bends and keeps its shape, giving you unlimited access to hard-to-reach jobs. This rust-busting formula penetrates into tight crevices, threads, and seams to break the bonds that hold stuck parts together. To make sure the job is done right it helps prevent rust and corrosion from re-forming and leaves behind a lubricating layer.

  • Fast Acting
  • Extra-penetrating Blu Torch technology
  • 8” Flexible Straw
  • Ideal for use on nuts, bolts, threads and locks
  • 50-state VOC compliant

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Customer Reviews

Average Customer Ratings

4.87 (111 Customer Reviews)
4.87 (111)

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Works Great

This product is the same trusted WD-40 that we all love. It just works faster and has a flexible straw. The flexible straw is awesome. It allows me to reach every area that I want to while spraying. It works fast and efficiently.

Giovanni T

Amazing product!

I purchased tires and rims for my vehicle and had tremendous trouble taking the bolts out with the tools I had. I decided to try this product, and only used a few sprays but was pleasantly surprised at how good this product worked. I let it sit for about 2 to 3 minutes and went back to try to loosen the bolts on the tires. The screws came out with such ease and I’m so grateful this product assisted me to achieve the goal I needed. The product came quickly and packaging was very nice and neat. When I’ve tried other products of this nature, I noticed it would leak around the spouting area and it would cause the product to run down the can. With the placement of the hose, I noticed I save so much more product to use for the next time and also I haven’t noted any leakage since I used the product. I would highly recommend this product to family and friends.


Works like a charm!

Received a month ago just one can of this stuff have been using it as I work seeing that I'm a flatbed truck driver I use this on different trailers to lube up and free up straps and other accessories I use daily at work


Perfect no mess

WD-40 Specialist Penetrant Fast Acting Formula with Flexible Straw is perfect to free those old and rusty joints. It doesnt make mess as it has flexible straw. Its smell is not very powerful i mean one can be ok around it.



The adjustable tube is the best addition to this product. Finally, we can adjust the tube to pinpoint where we need the product to be sprayed. Direct the spray and let the magic begin! I have a new love of WD-40!!


Excellent Penetrating Oil

WD 40 has been a standard requirement in my shop for many years. The new flexible straw makes it even more versatile and effective. The straw can be bent and flexed to reach even the hardest to get to parts. I highly recommend this new product!


Really like the flex straw

The flexible straw has allowed me to get into places that others hasn’t. Spraying down a bolt that is rusted and in tight locations on vehicles has been very annoying in the past, with having to remove a few other parts just to make sure you are hitting where you need to. With the flex straw I am able to cut my work by a quarter as now I don’t have to remove pieces that are in the way. Also still great for around my house use as well.

Work just like it should

I got this because of the flexible straw to help get those hard spot that you cant turn and fit the can in to spray. Work great. Used my full can already and have another on the way. Highly Recommend for those that use WD-40. Its nice having the flexible straw.


Flexible straw comes in handy.

I go thru slot of wd 40 in the shop, the flexible straw comes in very handy in hard to reach spots. Works well to lubricate items that haven't moved in a bit. Works great trying to get off rusted brake pads.


Works great

I am impressed with WD-40 Specialist Penetrant Fast Acting Formula with Flexible Straw. We couldn’t get the rusted Jeep doors off. I sprayed the WD-40 on the hinges and waited a couple of minutes to allow it to get inside the hinges. I was then able to unscrew the bolts and take the door off. The bendable straw is great because it stays in place when bent and gets into hard to reach places.