---
product_id: 21005456
title: "1 gal Rust-Oleum K7781402 Professional Gray Rusty Metal Primer, Flat, 400 VOC"
brand: "rust-oleum"
price: "S/.815"
currency: PEN
in_stock: true
url: https://www.desertcart.pe/products/21005456-1-gal-rust-oleum-k7781402-professional-gray-rusty-metal-primer
store_origin: PE
region: Peru
---

# Superior metal adhesion Waterproof for all weather Durable corrosion resistance 1 gal Rust-Oleum K7781402 Professional Gray Rusty Metal Primer, Flat, 400 VOC

**Brand:** rust-oleum
**Price:** S/.815
**Availability:** ✅ In Stock

## Summary

> 🛠️ Prime your metal, own the elements!

## Quick Answers

- **What is this?** 1 gal Rust-Oleum K7781402 Professional Gray Rusty Metal Primer, Flat, 400 VOC by rust-oleum
- **How much does it cost?** S/.815 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/21005456-1-gal-rust-oleum-k7781402-professional-gray-rusty-metal-primer)

## Best For

- rust-oleum enthusiasts

## Why This Product

- Trusted rust-oleum brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wide Coverage:** Covers up to 12 sq. ft. per gallon, maximizing efficiency on every job.
- • **One-Coat Wonder:** No need for extra topcoats or touch-ups—save time without compromising quality.
- • **All-Weather Ready:** Water-resistant formula guards against rain, humidity, and outdoor elements effortlessly.
- • **Fast Dry & Full Cure:** Dries in 12 hours with full curing in just 25 hours for quick project turnaround.
- • **Heavy-Duty Protection:** Engineered for commercial-grade metal surfaces, ensuring long-lasting durability.

## Overview

Rust-Oleum K7781402 Voc Gray Metal Primer is a premium oil-based primer designed for heavy-duty metal surfaces. Offering superior corrosion resistance and waterproof protection, it works indoors and outdoors with a glossy gray finish. This 1-gallon can covers 12 sq. ft. per coat, dries in 12 hours, and fully cures in 25 hours, eliminating the need for additional topcoats or touch-ups—perfect for professionals demanding durability and efficiency.

## Description

1 gal Rust-Oleum K7781402 Professional Gray Rusty Metal Primer, Flat, 400 VOC

## Features

- For metal surfaces in heavy-duty and commercial environments. Apply for superior coverage and hiding. Protects against the elements.
- Durable and corrosion-resistant
- For indoor and outdoor use
- No need for additional top coats or touch-ups
- Model number: K7781402

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Rust-Oleum |
| Color | Gray |
| Finish Type | Gloss |
| Size | 128 Fl Oz (Pack of 1) |
| Item Volume | 3785.41 Milliliters |
| Special Feature | Rust Resistant |
| Unit Count | 127.9999 Fluid Ounces |
| Paint Type | Oil-based |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal |
| Indoor/Outdoor Usage | Outdoor, Indoor |
| Item Form | Liquid |
| Included Components | For metal surfaces in heavy-duty and commercial environments. Apply for superior coverage and hiding. Protects against the elements. |
| Age Range (Description) | Adult |
| Is Waterproof | True |
| Model Name | RUST-OLEUM K7781402 Voc Gray Metal Primer, 1 Gallon (Pack of 1) |
| Package Information | Can |
| Color Code | 000000 |
| Full Cure Time | 25 Hours |
| Coverage | 12 sq. ft. |
| Water Resistance Level | Water Resistant |
| UPC | 020066778149 |
| Global Trade Identification Number | 00020066778149 |
| Manufacturer | RUST-OLEUM |
| Dry Time In Hours | 12 |
| Item Package Dimensions L x W x H | 9 x 7 x 6.9 inches |
| Package Weight | 5.33 Kilograms |
| Item Dimensions  LxWxH | 7.3 x 13.5 x 8 inches |
| Item Weight | 90 Grams |
| Brand Name | Rust-Oleum |
| Warranty Description | Warranty |
| Material | plastic |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | K7781-402 |

## Product Details

- **Brand:** Rust-Oleum
- **Color:** Gray
- **Finish Type:** Gloss
- **Size:** 128 Fl Oz (Pack of 1)
- **Item Volume:** 3785.41 Milliliters
- **Special Feature:** Rust Resistant
- **Unit Count:** 127.9999 Fluid Ounces
- **Paint Type:** Oil-based
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Metal

## Images

![1 gal Rust-Oleum K7781402 Professional Gray Rusty Metal Primer, Flat, 400 VOC - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Questions & Answers

**Q: Would this be good to use on bare metal on a cast iron radiator?**
A: It's good on the metal, it would depend on the heat. Would ask Rust Oleum directly

**Q: Will this work well with rustoleum enamel as a top coat?**
A: Yes

**Q: Can I spray clear over this do I need to wet sand with like 1500**
A: I also would like to have some input.  call Rust-Oleum tech support, number is on the paint can

**Q: Does it work on aluminum?**
A: Yes

## Frequently Bought Together

- RUST-OLEUM K7781402 Voc Gray Metal Primer, 1 Gallon (Pack of 1)
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- Rust-Oleum 7724502-2PK Stops Rust Brush On Paint, Quart (2 Pack), Gloss Sail Blue, 2 Can

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**Shop now:** [https://www.desertcart.pe/products/21005456-1-gal-rust-oleum-k7781402-professional-gray-rusty-metal-primer](https://www.desertcart.pe/products/21005456-1-gal-rust-oleum-k7781402-professional-gray-rusty-metal-primer)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-28*