








⚡ Clean smarter, not harder — keep your tech flawless and future-ready!
WD-40 Specialist Contact Cleaner Spray (11 oz) is a professional-grade, quick-drying, residue-free solution designed to clean sensitive electrical equipment including printed circuit boards, switches, and precision instruments. Safe on most plastics, rubbers, and metals, it removes oil, dirt, flux residue, and condensation with industrial strength reliability, making it the go-to choice for maintaining and reviving electronics in demanding environments.











| ASIN | B00AF0OFVU |
| Customer Reviews | 4.8 4.8 out of 5 stars (17,047) |
| Date First Available | February 12, 2013 |
| Department | Unisex-Adult |
| Is Discontinued By Manufacturer | No |
| Item model number | 300554-E |
| Manufacturer | WD-40 |
| Product Dimensions | 2.56 x 2.56 x 8.27 inches; 15.2 ounces |
R**N
Good Old Contact Cleaner - Not As Common Today!
WD-40 Specialist Contact Cleaner Spray, 11 oz. It is a WD40 product! I got this to clean sliding switches on some solar yard lights. It brought them back to life. If you have old fashioned mechanical switches, linear or rotary, this is what you need to keep them working at peak efficiency. It leaves no residue I can see (dries quickly), a little bit was enough, and just working the sliding switch on the solar light was enough to clean the switch contacts and revive the light. My lights have been working for a week now and that is with rain (light about .01 inch) and the sprinklers watering the lawn (95 degree + days). Good Stuff!
A**Y
Great stuff!
Fraction of the cost of others! Works great!
G**A
Cleans and Lubricates switches, buttons and knob controls
This stuff works great, I use it on radio turners , buttons and knobs. lubricates stuck buttons and eliminates static on volume controls and tuning knobs. I like the flip up straw you can use it with or without easily. The 11 oz can is a nice hefty size as I use alot of this stuff. Use it on CB radios, Stereos, Tape Decks anything electronic.
C**R
Easy to use
Worked well and made connections clean and running.
B**C
Fixed My Electronics Without Starting a Fire
I grabbed this to clean some crusty old switches and a volume knob that crackled like a campfire. One quick spray and everything smoothed out like it was brand new. It evaporates fast, doesn’t leave residue, and didn’t melt anything important — always a plus. Perfect for radios, remotes, connectors, and anything that’s gotten a little “electrically grumpy” over the years. A must‑have for any toolbox.
M**N
Good price
Worked great
N**.
“Solid performance at a fair price – a practical choice for professional use”
⚡ WD-40 Contact Cleaner – Professional-grade efficiency at a budget price This was my first time trying this contact cleaner in my electronics lab, and I’m genuinely impressed. Despite its affordable price, it meets technical standards and delivers precise cleaning with no residue left behind. 🧪 I’ve used more expensive alternatives before, and this WD-40 Specialist performs just as well. 🎯 The built-in Smart Straw is a brilliant feature: it stays attached to the can and allows pinpoint application, perfect for delicate components. 💡 Overall, an excellent choice for professionals seeking reliable performance without overspending.
B**D
Great product ,Great Price .....Enjoy how fast it comes.
Just what you need when working on the car... Spray it on spark plug coils and connections ...
R**L
एकदम बडिया है ये स्प्रे हर तरह के ईलेक्ट्राॅनिक चिज को साफ कर देता है यह और जो ईलेक्ट्राॅनिक चिज बंद पडी है उसे भी यह चालु कर देता है
D**E
Good for cleaning your contacts.
M**D
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W**D
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R**A
Worked
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