1 x 950ml ACF-50 bottle with FREE ATOMIZER
ACF-50 (Anti-Corrosion Formula) is the world's leading aviation-grade corrosion inhibitor — trusted by aircraft manufacturers globally and used by the US Navy on carrier-based aircraft. It doesn't just prevent corrosion; it actively deactivates existing corrosion cells on contact.
Originally developed to meet the extreme demands of aviation, ACF-50 holds MIL-SPEC 81309 Types II and III approval, making it certified for use on ferrous and non-ferrous metals, electrical systems, and electronic components.
How It Works
When applied, ACF-50 forms an ultra-thin, clear active film that penetrates into seams, joints, and cavities — chemically neutralising corrosion and actively ejecting moisture. Water beads and bounces off treated surfaces. One application protects for up to 12 months in sheltered areas.
Key Features
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Kills existing corrosion and prevents new corrosion forming
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Active protection for up to 12 months
- MIL-SPEC 81309 Types II & III approved
- Safe for use on electrical systems and engines
- Excellent lubricant and penetrant — won't loosen structural fasteners
- Ultra-thin, non-drying, clear film — won't affect appearance
- Actively ejects moisture from cracks and cavities
- Contains no wax, silicone, Teflon, or water
- Very economical — 950ml covers a large area

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New Zealand - Urban From $6.95
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New Zealand - Rural From $12.95
- New Zealand - Dangerous Goods From $12.95
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Australia - Please use www.downunderpilotshop.com.au (if you can't find it on our Australia Shop please let us know and we can arrange to ship it from NZ)
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Worldwide - calculated at checkout. - duty and customs charges are the customer's responsibility.
We use NZ Post, NZ Couriers and DHL for international.
Orders received by 3pm for stocked items will ship the same day* (Mon- Fri)
*During busy periods like Black Friday there may be a delay of a day or two.
*We always do everything humanly possible to ship your order on the same day. Occasionally, due to factors outside of our control your order may ship the following day.
Shipping by Destination
For detailed shipping information specific to your country, including rates, carriers, and delivery times, see the guides below:
We want you to feel confident shopping with us. While we don’t offer refunds for change‑of‑mind returns, you’re welcome to send items back within 14 days for a store credit or exchange if the size isn’t right or you’re not completely happy.
If you’re unsure about a product, our team is always happy to help before you place your order — just get in touch.
Of course, if an item is faulty, we follow the Consumer Guarantees Act and will make things right.
How to Make a Return (Easy Steps)
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Open our Returns Portal and enter the email you used for your order.
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Check your inbox for the six‑digit verification code and enter it into the portal.
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Select the order you’d like to return.
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Choose the item, pick a reason, and add a note if you’d like.
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Click Request Return.
Once your return is approved, we’ll email you the shipping instructions. After we receive the item, we’ll issue a store credit (Gift Voucher) that you can use online or in‑store.
Items We Can’t Accept Back
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Special‑order items
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Items returned to take advantage of a promotion
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Underwear
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Clearance items
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Bulk purchases (2+ of the same item), especially if ordered in specifically for you
See Our Terms and Conditions for more on Returns.
Pilot Shop Ltd is authorised by the Civil Aviation Authority of New Zealand to supply aircraft parts and aircraft fluids. Our CAA number is SUP104208NZ.
Download our CAA Part 19F Certificate.