---
product_id: 7526183
title: "U-POL ACID#8 Acid Etch Primer, Automotive Etching Primer Paint For Bare Metals, Durable Against Rust & Corrosion, Easy-To-Use, Gray, 0.8 Gallon"
brand: "u-pol"
price: "HK$755"
currency: HKD
in_stock: true
reviews_count: 8
category: "U Pol"
url: https://www.desertcart.hk/products/7526183-u-pol-acid-8-acid-etch-primer-automotive-etching-primer
store_origin: HK
region: Hong Kong
---

# Flat fan nozzle for even, wide spray Phosphoric acid ester for strong adhesion Superior rust & corrosion defense U-POL ACID#8 Acid Etch Primer, Automotive Etching Primer Paint For Bare Metals, Durable Against Rust & Corrosion, Easy-To-Use, Gray, 0.8 Gallon

**Brand:** u-pol
**Price:** HK$755
**Availability:** ✅ In Stock

## Summary

> 🛠️ Prime like a pro, protect like a boss.

## Quick Answers

- **What is this?** U-POL ACID#8 Acid Etch Primer, Automotive Etching Primer Paint For Bare Metals, Durable Against Rust & Corrosion, Easy-To-Use, Gray, 0.8 Gallon by u-pol
- **How much does it cost?** HK$755 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/7526183-u-pol-acid-8-acid-etch-primer-automotive-etching-primer)

## Best For

- u-pol enthusiasts

## Why This Product

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

## Key Features

- • **Spray Like a Pro:** High atomization flat fan nozzle delivers smooth, even coverage for a flawless finish every time.
- • **Time-Saving Tech:** No sanding required before topcoating—cut your prep time and get back to the job faster.
- • **Rustproof Your Ride:** Creates a durable anti-corrosive barrier that extends metal life even in harsh outdoor conditions.
- • **One-Step Metal Mastery:** Etch and prime bare metal in a single, streamlined application—no extra prep needed.
- • **Trusted Industry Leader:** From U-POL, the global authority in automotive refinishing, ensuring premium quality and performance.

## Overview

U-POL ACID#8 Acid Etch Primer is a high-performance aerosol primer designed for bare metals like galvanized steel and aluminum. Its phosphoric acid ester formula etches and primes in one step, delivering superior adhesion and a durable anti-rust barrier. Featuring a flat fan high atomization nozzle, it ensures even coverage and a smooth matte finish that requires no sanding before topcoating. Ideal for automotive and metal fabrication projects, it extends surface life and simplifies prep with trusted U-POL quality.

## Description

U-POL ACID#8 Etch Primer Aerosol is a high-performance solution designed to promote superior paint adhesion on tough surfaces like galvanized steel and aluminum. Its phosphoric acid ester formula etches and primes bare metal in a single step, making it ideal for new bare metal panels and rub-throughs in primer before color application. This advanced primer creates a durable, anti-corrosive barrier that protects steel from rust and extends the life of metal surfaces. Featuring a flat fan high atomization nozzle, it delivers excellent coverage with a large, even spray pattern. With no sanding required, U-POL Etch Primer can be directly topcoated, ensuring a smooth, professional finish while saving time and effort.

Review: Great product - I used Acid 8 on several fabrication projects where bare steel is welded and sanded. I cleaned with lacquer thinner and sprayed Acid 8 followed by Raptor Bed Liner spray. Never had any issues with adhesion and the finished project looks great. Some projects are 3 years old and stored outside in the North East with no rust.
Review: Works well on bare aluminum - This etch primer worked very well as a base for raptor liner spray. I touched up some areas with rattle can primer and had much poorer results.

## Features

- STRONG ADHESION: U-POL Acid Etch Primer uses a phosphoric acid ester formula to promote superior paint adhesion on tough surfaces like galvanized steel & aluminum, making it ideal for new bare metal panels & rub-throughs in primer before color application
- ONE-STEP PRIMING: Etch and prime bare metal in a single step for a streamlined application process. This high-performance aerosol creates a strong foundation for coatings, ensuring long-lasting durability without the need for additional preparation
- ANTI-CORROSIVE PROTECTION: Formulated to create a durable barrier against rust and corrosion, U-POL Acid Etch Primer safeguards steel surfaces, preventing deterioration and extending the life of your metalwork in even the harshest conditions
- EASY, EFFICIENT APPLICATION: Featuring a flat fan high atomization nozzle, this aerosol delivers a large, even spray pattern for excellent coverage. It can be directly topcoated with no sanding required, saving time while ensuring a smooth, professional finish
- U-POL RIGHT FROM THE START: U-POL are World leaders in automotive refinishing with a wide range of comprehensive products specializing in driving surface perfection including fillers, coatings, aerosols, adhesives, & truck-bed liners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004SR5ZXS |
| Age Range Description | Adult |
| Best Sellers Rank | #126,018 in Automotive ( See Top 100 in Automotive ) #60 in Automotive Primers |
| Brand | U-POL |
| Brand Name | U-POL |
| Color | Aluminum |
| Color Code | #D3D3D3 |
| Container Type | Can |
| Coverage | 33.8 Fl Oz or 1.0 liters |
| Customer Reviews | 4.4 out of 5 stars 120 Reviews |
| Finish Type | Matte |
| Global Trade Identification Number | 05010796103309 |
| Included Components | Tin |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | False |
| Item Form | Aerosol |
| Item Type Name | National Rule ACID#8 Acid Etch Primer |
| Item Volume | 1 Liters |
| Item Weight | 2.6 Pounds |
| Manufacturer | U-Pol Products |
| Model Name | 0776 |
| Size | 33.8 Fl Oz (Pack of 1) |
| Special Feature | Rust Resistant |
| Special Features | Rust Resistant |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal, Plastic, Wood |
| Unit Count | 33.8 Fluid Ounces |
| Warranty Description | No warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** U-POL
- **Color:** Aluminum
- **Finish Type:** Matte
- **Indoor/Outdoor Usage:** Outdoor
- **Item Volume:** 1 Liters
- **Size:** 33.8 Fl Oz (Pack of 1)
- **Special Feature:** Rust Resistant
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Metal, Plastic, Wood
- **Unit Count:** 33.8 Fluid Ounces

## Images

![U-POL ACID#8 Acid Etch Primer, Automotive Etching Primer Paint For Bare Metals, Durable Against Rust & Corrosion, Easy-To-Use, Gray, 0.8 Gallon - Image 1](https://m.media-amazon.com/images/I/71a7uRVZU2L.jpg)

## Questions & Answers

**Q: should i use a brush? or HVLP gun ? if you say gun, what size tip?**
A: Hvlp. 1.2 1.3 would work.

**Q: I bought some acid #8 and am going to spray it on. Do i need to do to add the usual reducer and hardener?**
A: It is best reduced using isopro alcohol to sprayable consistancy. No hardener required.

**Q: I have 156 square feet of steel to cover.   How much of this primer do I need as a base coat to cover that area before I apply the Raptor?**
A: It took 1.5 cans to do the floor and internal side walls of my jeep yj

**Q: Is this primer a 2 part primer or is it ready to spray right from the can?**
A: It is a single part primer that can be thinned as needed for spraying as follows:
The product can be thinned up to 5% with alcohol, e.g. IMS/Butanol.
Complete instructions are available from U-POL on the web at -  http://www.u-pol.com/files/2507/up0776-SDS-EN

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by H***C on June 23, 2019*

I used Acid 8 on several fabrication projects where bare steel is welded and sanded. I cleaned with lacquer thinner and sprayed Acid 8 followed by Raptor Bed Liner spray. Never had any issues with adhesion and the finished project looks great. Some projects are 3 years old and stored outside in the North East with no rust.

### ⭐⭐⭐⭐⭐ Works well on bare aluminum
*by Z***T on June 3, 2020*

This etch primer worked very well as a base for raptor liner spray. I touched up some areas with rattle can primer and had much poorer results.

### ⭐⭐⭐⭐⭐ Easy to shoot
*by J***A on August 21, 2020*

Seems to be a Great product as with any coating time will tell. I shot this out of a 1.5 and it laid down great. Degreased then primed these awnings and finished with raptor spray in bedliner. Will use again.

## Frequently Bought Together

- U-POL ACID#8 Acid Etch Primer, Automotive Etching Primer Paint For Bare Metals, Durable Against Rust & Corrosion, Easy-To-Use, Gray, 1L
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-19*