---
product_id: 224934261
title: "Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans"
brand: "cosmoline direct, llc"
price: "$1614"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/224934261-cosmoline-rp-342-black-rust-preventive-spray-military-grade-24
store_origin: NZ
region: New Zealand
---

# Dries in 25 minutes Waterproof & salt spray resistant Military-grade protection Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans

**Brand:** cosmoline direct, llc
**Price:** $1614
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect like a pro—rust doesn’t stand a chance!

## Quick Answers

- **What is this?** Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans by cosmoline direct, llc
- **How much does it cost?** $1614 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/224934261-cosmoline-rp-342-black-rust-preventive-spray-military-grade-24)

## Best For

- cosmoline direct, llc enthusiasts

## Why This Product

- Trusted cosmoline direct, llc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Invisible Armor:** Matte black finish conceals imperfections while providing chip-resistant protection.
- • **Military-Grade Trust:** Trusted by U.S. Armed Forces since WWII for superior rust prevention.
- • **Unmatched Durability:** One coat shields metal surfaces for years without cracking or peeling.
- • **Fast & Effortless Application:** Spray on dry surfaces and dry-to-touch in just 25 minutes—minimal downtime guaranteed.
- • **Versatile Industrial Strength:** Perfect for vehicle undercoating, heavy machinery, marine equipment, and more.

## Overview

Cosmoline RP-342 is a military-grade, fast-drying black rust preventive spray that delivers long-lasting, waterproof protection for metal surfaces indoors and outdoors. Trusted since WWII, this aerosol forms a durable, chip-resistant wax coating that withstands extreme conditions, salt spray, and harsh environments with just one easy application.

## Description

Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans

## Features

- OUR STRONGEST, LONGEST-LASTING & FASTEST-DRYING Rust Preventive Aerosol, PERIOD! 1-coat can reliably protect any metal, steel, or iron surface (parts, equipment, tools, machinery, etc.) for Years!.....indoors or outdoors.
- DURABLE & TOUGH – Will not crack, craze, blister, run or “wash off”. RP-342 produces a dry-to-the-touch (non-tacky), amber, BLACK petroleum wax coating (perfect for concealing unsightly surfaces) that stands up to long-term salt spray, extreme temperatures and other harsh environments.
- EASY-TO-APPLY: Just spray onto a dry surface, dries in about 25 minutes; You’re Done!
- TRUSTED SINCE WWII – has been widely used & trusted by the U.S. Armed Forces, government agencies, commercial companies, and DIYers/consumers for generations.
- 1,000s of APPLICATIONS across commercial and private industries. Vehicle undercoating is one of the most popular applications. Easily stands up to road salt, chemicals, road debris and won’t wash off like many other undercoating products. One application/coating can protect for years.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Cosmoline Direct, LLC |
| Color | Black |
| Finish Type | Matte |
| Size | 12 Ounce (Pack of 24) |
| Item Volume | 288 Fluid Ounces |
| Special Feature | Chip Resistant, Fast-Drying |
| Paint Type | Spray |
| Specific Uses For Product | Vehicle Undercoating, Car Undercoat, Truck Undercoating, Rust Prevention, Rust Preventive |
| Surface Recommendation | Metal |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Item Form | Aerosol |
| Is Waterproof | True |
| Package Information | Can |
| Full Cure Time | 25 Minutes |
| Coverage | long-term protection |
| Water Resistance Level | Waterproof |
| Manufacturer | Flywheel Distribution, LLC |
| Dry Time In Hours | 2 |
| Product Dimensions | 5.51 x 6.69 x 9.84 inches |
| Manufacturer Part Number | 342-1032-24 |
| Special Features | Chip Resistant, Fast-Drying |

## Product Details

- **Brand:** Cosmoline Direct, LLC
- **Color:** Black
- **Finish Type:** Matte
- **Size:** 12 Ounce (Pack of 24)
- **Item Volume:** 288 Fluid Ounces
- **Special Feature:** Chip Resistant, Fast-Drying
- **Paint Type:** Spray
- **Specific Uses For Product:** Vehicle Undercoating, Car Undercoat, Truck Undercoating, Rust Prevention, Rust Preventive
- **Surface Recommendation:** Metal
- **Indoor/Outdoor Usage:** Indoor, Outdoor

## Images

![Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans - Image 1](https://m.media-amazon.com/images/I/51DyRGK+acL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Cosmoline RP-342 Black Rust Preventive Spray (Military-Grade) 24-Cans
- Cosmoline RP-342 "Heavy" Rust Preventative Spray (Military-Grade) 24-Cans

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/224934261-cosmoline-rp-342-black-rust-preventive-spray-military-grade-24](https://www.desertcart.nz/products/224934261-cosmoline-rp-342-black-rust-preventive-spray-military-grade-24)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-07*