---
product_id: 20090799
title: "249340 Automotive 12-Ounce High Heat Primer Spray Paint, Gray"
brand: "rust-oleum"
price: "744673₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Rust Oleum"
url: https://www.desertcart.vn/products/20090799-249340-automotive-12-ounce-high-heat-primer-spray-paint-gray
store_origin: VN
region: Vietnam
---

# Covers 12 sq ft with quick dry Heat resistant up to 2000°F Rust resistant oil-based primer 249340 Automotive 12-Ounce High Heat Primer Spray Paint, Gray

**Brand:** rust-oleum
**Price:** 744673₫
**Availability:** ✅ In Stock

## Summary

> 🔥 Shield your ride with heat-proof, rust-proof precision!

## Quick Answers

- **What is this?** 249340 Automotive 12-Ounce High Heat Primer Spray Paint, Gray by rust-oleum
- **How much does it cost?** 744673₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/20090799-249340-automotive-12-ounce-high-heat-primer-spray-paint-gray)

## 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

- • **Rust-Stopping Power:** Oil-based formula creates a tough, rust-resistant base coat that shields your investment from corrosion.
- • **Any-Angle Spray Tech:** Spray confidently from any direction—even upside down—for precision application on complex parts.
- • **Extreme Heat Defense:** Protect metal surfaces from scorching temps up to 2000°F—engineered for automotive endurance.
- • **Fast & Efficient Coverage:** Sprays smoothly to cover 12 sq ft, dries to touch in 30 minutes, and ready for topcoat in just 1 hour.
- • **Matte Finish Ready for Customization:** Flat gray primer ensures superior adhesion for any topcoat, delivering a flawless, professional look.

## Overview

Rust-Oleum 249340 High Heat Primer Spray Paint is a 12-ounce, oil-based primer designed for metal automotive parts exposed to extreme temperatures up to 2000°F. It provides a rust-resistant base coat with fast drying time and excellent adhesion, ideal for engines, mufflers, and other heat-exposed surfaces. Featuring any-angle spray technology and a matte finish, it ensures smooth application and superior topcoat bonding.

## Description

Product Description Rustoleum Automotive 249410 12 Oz Engine Primer Spray Paint, Gray Features: 12 oz spray paint Resists heat up to 500Â°F Perfect for using on automotive engines and other automotive surfaces Specifically formulated to prevent and stop rust Any angle spray comfort tip Gray. From the Manufacturer Rust-Oleum High Heat Primer bonds to bare metal and helps create a smooth top coat finish.

Review: Good quality primer used for pellet smoker cover where high temps are a concern - Had some rust spots developing on a pellet smoker. I pulled the metal cover off and sanded it down to remove the rust and then hit it with this primer. Primer lays down nice and smooth and dries almost instantly. I'm still working on a stainless steel high temperature finish coat but I believe that this primer will help to ensure good adhesion and eliminate any potential for peeling or blistering for temps up to 500F that I regularly cook at.
Review: Good product if you are willing to take the time to do it right. - Works very well when certain common sense best practices are followed. Clean the part thoroughly, that means basic and acid washes beforehand, rough up surface (I used 60 grit) where applicable. Once clean always hold part with hanger or clean non-powdered gloves, after first coat, the same precaution needs to be adhered to. Coats should be thin and consistent. Ideally I would not move forward to final color coats with anything less than two complete prime coats. Part of the reason I coated my exhaust is that I am moving to a winter salt state, soooooo yeah, coat it or watch it rust into oblivion. I tend to go overboard on everything, so the whole system has 4-6 coats of primer depending on location and base metal, with 1-3 curing cycles (where possible), prior to color coats. Coverage is actually pretty good. After the priming process I sanded again after curing but prior to final color coat. I used black, but I imagine most colors (which are in no way true to color expectations or vibrancy... this stuff isn't jet-hot) will hold up the same depending on application and part cleanliness throughout the process. If applied and cured properly I see no reason why flaking, delamination, or "chipping" should be too much of an issue within reason. I'm a year into this job and as of my last oil change, I was able to fully inspect my work and found none of the above. I am happy with the product so far and it worth noting, this is NOT a thermal coating, it is purely protective.... and i suppose aesthetic for some. Time consuming to do right, but if the purpose is to protect your investment, well, take the time and do it right. Can you just go to town on an exhaust part and throw it on the car? Sure. Will it be as durable? Probably not. Take all of this as you will.

## Features

- High heat primer spray paint is designed for use on metal surfaces such as automotive engines, mufflers and more
- Oil based paint with Stops Rust formula provides rust resistant base coat for cars, trucks and other vehicles
- Covers up to 12 sq ft, dries to the touch in 30 minutes and can be topcoated in 1 hour
- Spray paint offers outstanding heat resistance for metal surfaces up to 2000°F
- Flat finish can be covered with any topcoat with superior adhesion
- Specially formulated to prevent rust and is recommended for use on automotive engines and other metal surfaces which reach intermittent temperatures up to 2000°F (1093°C).
- Ideal for mufflers, head pipes and engine blocks
- For best appearance, top coat with Rust-Oleum High Heat Paint
- Any-angle spray technology allows the can to be sprayed in any direction, even upside down

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Rust-Oleum |
| Color | Gray |
| Finish Type | Matte |
| Item Volume | 354.88 Milliliters |
| Size | 12 Ounce (Pack of 1) |
| Special Feature | Rust Resistant |

## Product Details

- **Brand:** Rust-Oleum
- **Color:** Gray
- **Finish Type:** Matte
- **Item Volume:** 354.88 Milliliters
- **Paint Type:** Spray
- **Size:** 12 Ounce (Pack of 1)
- **Special Feature:** Rust Resistant
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Metal
- **Unit Count:** 12.0 Ounce

## Images

![249340 Automotive 12-Ounce High Heat Primer Spray Paint, Gray - Image 1](https://m.media-amazon.com/images/I/71fnHaSt7rL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can I paint my pots and pans with this? Re-doing kitchen and would like to not have to buy all new pots and pans.**
A: Seriously, please do not do that. That would be extremely harmful for you and whomever else you cook for.

**Q: Can I paint now and put the parts aside, then do the curing process later, after my engine is back in service?**
A: do a light paint now, let it dry then paint again for better results.

**Q: How high of temp can it sustain? says intermittent up to 2000°f. kinda ambiguous. can it do 1600f for 1hour?**
A: i used this product on my 4 pistion calipers and tested them at my campus garage, i tested it under constant and heavy braking, it withstood temps up too 1989F. The red paint i used has been on there for 3 years and i still havent had to touch up the paint

**Q: Does this contain zinc to work as a good primer for aluminum?**
A: Not sure this answers your question but I can tell you from experience that this stuff really works. I used it on my aluminum engine top side and it's been 2yrs and my engine paint still look new to date.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality primer used for pellet smoker cover where high temps are a concern
*by W***H on September 25, 2025*

Had some rust spots developing on a pellet smoker. I pulled the metal cover off and sanded it down to remove the rust and then hit it with this primer. Primer lays down nice and smooth and dries almost instantly. I'm still working on a stainless steel high temperature finish coat but I believe that this primer will help to ensure good adhesion and eliminate any potential for peeling or blistering for temps up to 500F that I regularly cook at.

### ⭐⭐⭐⭐⭐ Good product if you are willing to take the time to do it right.
*by B***T on December 16, 2017*

Works very well when certain common sense best practices are followed. Clean the part thoroughly, that means basic and acid washes beforehand, rough up surface (I used 60 grit) where applicable. Once clean always hold part with hanger or clean non-powdered gloves, after first coat, the same precaution needs to be adhered to. Coats should be thin and consistent. Ideally I would not move forward to final color coats with anything less than two complete prime coats. Part of the reason I coated my exhaust is that I am moving to a winter salt state, soooooo yeah, coat it or watch it rust into oblivion. I tend to go overboard on everything, so the whole system has 4-6 coats of primer depending on location and base metal, with 1-3 curing cycles (where possible), prior to color coats. Coverage is actually pretty good. After the priming process I sanded again after curing but prior to final color coat. I used black, but I imagine most colors (which are in no way true to color expectations or vibrancy... this stuff isn't jet-hot) will hold up the same depending on application and part cleanliness throughout the process. If applied and cured properly I see no reason why flaking, delamination, or "chipping" should be too much of an issue within reason. I'm a year into this job and as of my last oil change, I was able to fully inspect my work and found none of the above. I am happy with the product so far and it worth noting, this is NOT a thermal coating, it is purely protective.... and i suppose aesthetic for some. Time consuming to do right, but if the purpose is to protect your investment, well, take the time and do it right. Can you just go to town on an exhaust part and throw it on the car? Sure. Will it be as durable? Probably not. Take all of this as you will.

### ⭐⭐⭐⭐⭐ Nice high heat primer!
*by R***T on July 27, 2025*

Used this primer on my wood burning stove when I reconditioned the outside. Really bonds well and did exactly what I needed. Dries fast- perfect base coat for the other high heat paint I used. Rust prevention was Meh but honestly I probably just didn’t do a great job removing it from areas. Overall worth the purchase. I’m nitpicking

## Frequently Bought Together

- Rust-Oleum 249340 Automotive High Heat Primer Spray Paint, 12 Ounce (Pack of 1), Gray
- Rust-Oleum 248903 Automotive High Heat Spray Paint, 12 oz, Flat Black
- Rust-Oleum 251591 Caliper Spray Paint, 12 oz, Red

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-15*