---
product_id: 18499802
title: "Modern Masters Metal Effects Rust Activator"
brand: "modern masters"
price: "$302.25"
currency: USD
in_stock: true
category: "Modern Masters"
url: https://www.desertcart.us/products/18499802-modern-masters-metal-effects-rust-activator
store_origin: US
region: United States of America
---

# Covers 100 sq ft per gallon Water-based acidic formula Fast 30-min dry time Modern Masters Metal Effects Rust Activator

**Brand:** modern masters
**Price:** $302.25
**Availability:** ✅ In Stock

## Summary

> 🛠️ Rust redefined: Turn metal into art with speed and style!

## Quick Answers

- **What is this?** Modern Masters Metal Effects Rust Activator by modern masters
- **How much does it cost?** $302.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/18499802-modern-masters-metal-effects-rust-activator)

## Best For

- modern masters enthusiasts

## Why This Product

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

## Key Features

- • **Fast-Dry Formula:** Half-hour dry time means quicker project turnaround without waiting days.
- • **Generous Coverage:** One gallon covers up to 100 sq ft, perfect for bold, statement-making surfaces.
- • **Matte Finish Perfection:** Achieve a sophisticated, non-glossy rust effect that elevates any interior wall.
- • **Activate Rust Like a Pro:** Transforms Reactive Iron Metallic Paint into authentic rust finishes with ease.
- • **Trusted Quality & Ratings:** Highly rated with 4.6 stars from 400+ pros who swear by Modern Masters.

## Overview

Modern Masters PA904 Metal Effects Rust Activator is a water-based acidic solution designed to react with Reactive Iron Metallic Paint, creating authentic rust finishes indoors. It dries in just 30 minutes, covers 100 square feet per gallon, and delivers a matte, rust-resistant surface that’s perfect for professional-grade decorative projects.

## Description

Product Description Rust Activator is a water-based acidic solution that can be applied over Reactive Iron Metallic Paint. From the Manufacturer Rust Activator is a water-based acidic solution that can be applied over Reactive Iron Metallic Paint.

## Features

- include
- Model Number: PA904
- Manufacturer: Modern Masters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000I1VBTA |
| Age Range Description | Adult |
| Best Sellers Rank | #72,450 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #253 in Interior & Exterior House Paint |
| Brand Name | Modern Masters |
| Color | Activator |
| Color Code | 000000 |
| Container Type | Can |
| Coverage | 100 sq ft |
| Customer Reviews | 4.6 4.6 out of 5 stars (417) |
| Dry Time In Hours | 0.5 |
| Finish Type | Matte |
| Full Cure Time | 40 minutes |
| Global Trade Identification Number | 00740774998942 |
| Included Components | Metal Effects Activator |
| Indoor Outdoor Usage | Indoor |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Type Name | Metal Effects Patinas/Activators |
| Item Volume | 1 gallons |
| Manufacturer | Modern Masters |
| Model Name | Metal Effects |
| Model Number | PA904GAL |
| Paint Type | Watercolor |
| Part Number | PA904GAL |
| Size | 128 Fl Oz (Pack of 1) |
| Special Features | Rust Resistant |
| Specific Uses For Product | Interior |
| Surface Recommendation | Walls |
| UPC | 740774998942 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Modern Masters
- **Color:** Activator
- **Finish Type:** Matte
- **Item Volume:** 1 gallons
- **Paint Type:** Watercolor
- **Size:** 128 Fl Oz (Pack of 1)
- **Special Feature:** Rust Resistant
- **Specific Uses For Product:** Interior
- **Surface Recommendation:** Walls
- **Unit Count:** 128 Fluid Ounces

## Images

![Modern Masters Metal Effects Rust Activator - Image 1](https://m.media-amazon.com/images/I/51z6Kl5hjsL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the 'Rust Activator' the same as the green (copper) and blue (bronze) activators?**
A: No. One is for Rust and the other is for green or blue, depending on which paint you use as a base coat. There are three base paints and two activators.

**Q: Will this work on my powder coated galvanized mail box?**
A: Use a self etching primer first. Then it will bond the the powder coating.

**Q: This wont work on new metal roofing thats not painte would it ?**
A: I believe it well work. Purchase a smaller quantity and test it first. I use it to get a rust effect on modern masters metal effects paint that has actual ground metal in it.

**Q: Can I use this on corrugated metal panels from Home Depot to get a rusty look?**
A: As long as you use the iron paint first, you can virtually rust any material.  I’ve used it on wood, glass, ceramics and metal.

## Frequently Bought Together

- 1 gal Modern Masters PA904 Metal Effects Rust Activator
- 1 gal Modern Masters AM204 Clear Metal Effects Permacoat Xtreme Sealer
- 1 gal Modern Masters ME149 Copper Metal Effects Reactive Metallic Paint

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**Shop now:** [https://www.desertcart.us/products/18499802-modern-masters-metal-effects-rust-activator](https://www.desertcart.us/products/18499802-modern-masters-metal-effects-rust-activator)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-10*