Captain Seal Lanolin Spray is your go-to defence against rust, corrosion, and moisture perfect for protecting gear exposed to salt, sand, or humidity. This powerful lanolin marine spray is made using natural lanolin oil sourced from New Zealand sheep wool, offering eco-conscious, long-lasting protection. Whether you're spraying down your trailer, boat engine, or 4wd underbody, this lanolin spray for boat and lanolin spray 4wd solution creates a water-repellent barrier that won’t break down easily. Packaged in a convenient lanolin spray bottle, it’s tough on the elements and gentle on your equipment.

Wait—what’s lanolin?

Lanolin is a waxy substance that sheep naturally produce to protect their wool and skin from the elements. Think of it as nature’s own waterproofer. It’s incredibly effective at locking out moisture, resisting salt spray, and keeping surfaces lubricated and protected.

We source ours from New Zealand, where sheep live in some of the world’s wildest outdoor conditions. That means the lanolin is extra potent pure, high-quality, and built to perform when things get wet, muddy, or salty.

Why You’ll Love It:

• Thick, water-resistant barrier that sticks to metal and won’t wash off easily
• Stops rust and corrosion before it starts
• Safe on paint, plastics, rubber, and wiring
• Non-toxic and biodegradable
  
  

How to Use It:

On the boat: Spray your outboard, trailer parts, and terminals after every washdown
In the 4WD: Hit underbody bolts, hinges, and exposed metal before beach driving
In the shed: Keep tools, mowers, and machinery rust-free and ready to roll
Fishing gear: Protect your reels and pliers after a day on the water

If it’s metal and lives outdoors, Captain’s Seal has it covered with nature’s toughest rust barrier.

1. Start with a clean surface
Make sure the area you're treating is clean and dry. Remove any dirt, salt, or grease before spraying for best results.

2. Shake it up
Give the bottle a good shake to mix the natural lanolin formula properly.

3. Spray a light, even coat
Hold the bottle 10–20cm away and apply a thin, even layer to the metal surface. You don’t need to drench it enough to cover the area and create a barrier.

4. Let it settle
The formula will leave a slightly tacky, water-resistant film. That’s normal—the protective layer blocks rust and moisture.

5. Reapply as needed
For gear exposed to the elements regularly (like marine or 4WD equipment), reapply every few weeks or after washing.

1. Start with a clean surface
Make sure the area you're treating is clean and dry. Remove any dirt, salt, or grease before spraying for best results.

2. Shake it up
Give the bottle a good shake to mix the natural lanolin formula properly.

3. Spray a light, even coat
Hold the bottle 10–20cm away and apply a thin, even layer to the metal surface. You don’t need to drench it enough to cover the area and create a barrier.

4. Let it settle
The formula will leave a slightly tacky, water-resistant film. That’s normal—the protective layer blocks rust and moisture.

5. Reapply as needed
For gear exposed to the elements regularly (like marine or 4WD equipment), reapply every few weeks or after washing.

Q: Will it wash off in the rain or at the beach?
A: Nope. Captain’s Seal is water-resistant and built to stay put, even in wet, salty, or humid environments. That slightly tacky finish helps it stick to surfaces and keep moisture out.

Q: Is it safe to use on paint, rubber, or plastic?
A: Yes! It’s non-toxic and safe on all common surfaces—painted areas, plastic trims, rubber seals, wiring, and more.

Q: Does it stop rust that’s already started?
A: It won’t reverse rust, but it will slow it down and help prevent it from getting worse. For best results, remove any loose rust or corrosion before applying.

Q: How often should I use it?
A: Depends on how exposed your gear is. For boats, trailers, and 4WD underbodies, we recommend spraying every 3–4 weeks or after heavy use. For tools or fishing gear, every couple of months is usually fine.

Q: Can I use it on electrical connections or battery terminals?
A: Absolutely. It’s a great way to protect terminals from corrosion. Just use a light spray—don’t flood it—and make sure the area is dry first.

Q: Does it leave a greasy mess?
A: It leaves a light, tacky film, not a thick greasy layer. That’s how it blocks water and salt. If you over-apply, just wipe off the excess with a cloth.

Q: Can I use it indoors, like in a garage or shed?
A: 100%. It’s great for protecting tools, machinery, hinges, and anything metal that sits unused for long periods.

Q: Does it smell?
A: It has a mild lanolin scent—nothing overpowering. No harsh chemical fumes like some industrial sprays.