---
product_id: 12883357
title: "BlueDevil Radiator & Block Sealer – 16 oz | Permanent Repair for Radiator & Engine Block Leaks | Safe, Non-Clogging Formula for All Cooling Systems"
brand: "bluedevil products"
price: "₱3806"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/12883357-bluedevil-radiator-and-block-sealer-16-oz-permanent-repair-radiator
store_origin: PH
region: Philippines
---

# Safe for all cooling systems Non-clogging, fiber-free formula Permanent leak repair BlueDevil Radiator & Block Sealer – 16 oz | Permanent Repair for Radiator & Engine Block Leaks | Safe, Non-Clogging Formula for All Cooling Systems

**Brand:** bluedevil products
**Price:** ₱3806
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it once, drive forever: The ultimate leak-proof secret

## Quick Answers

- **What is this?** BlueDevil Radiator & Block Sealer – 16 oz | Permanent Repair for Radiator & Engine Block Leaks | Safe, Non-Clogging Formula for All Cooling Systems by bluedevil products
- **How much does it cost?** ₱3806 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/12883357-bluedevil-radiator-and-block-sealer-16-oz-permanent-repair-radiator)

## Best For

- bluedevil products enthusiasts

## Why This Product

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

## Key Features

- • **Engine-safe formula:** Compatible with all engine types and antifreeze blends
- • **Seal leaks for good:** Permanently repairs radiator & engine block leaks without fail
- • **Zero clog guarantee:** Fiber-free formula ensures your cooling system stays pristine
- • **Effortless application:** Simple pour-in solution—no mechanic needed
- • **Universal compatibility:** Works seamlessly on plastic, aluminum, and metal radiators

## Overview

BlueDevil Radiator & Block Sealer is a professional-grade, 16 oz solution that permanently seals leaks in radiators and engine blocks. Its advanced, fiber-free formula works safely on plastic, aluminum, and metal components without clogging, compatible with all engine types and antifreeze. Easy to use and guaranteed to protect your cooling system from costly repairs.

## Description

BlueDevil Radiator & Block Sealer – 16 oz | Permanent Repair for Radiator & Engine Block Leaks | Safe, Non-Clogging Formula for All Cooling Systems

## Features

- Permanent repair for radiator and block leaks.
- Works effectively on plastic, aluminum and/or metal radiators
- Contains no solids or fibrous materials.
- Safe and Easy to use.
- Guaranteed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BlueDevil Products |
| Brand | BlueDevil Products |
| Model | BlueDevil 00205 Radiator & Block Sealer - 16 Ounce |
| Item Weight | 1 pounds |
| Product Dimensions | 2.75 x 2.75 x 7.25 inches |
| Item model number | 00205 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 00205 |

## Images

![BlueDevil Radiator & Block Sealer – 16 oz | Permanent Repair for Radiator & Engine Block Leaks | Safe, Non-Clogging Formula for All Cooling Systems - Image 1](https://m.media-amazon.com/images/I/71PQ9MLq3FL.jpg)

## Available Options

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

## Questions & Answers

**Q: useing blue devil radiator sealer do you need to flush radiator first**
A: I think it says to drain and flush all coolant and to use their flush chemicals before using the sealer.  My friend used the sealer on his engine and all he did was drain and flush thoroughly with clear water before using the sealer.  He had good results.  I am always a little critical about a product that infers that if you don't use their brand of prep the product may not perform as expected.   Is there a real potential or for some chemical reaction without that particular prep chemical or is it a gimmick to sell more of their product or is it an out if the product fails so they won't have to make good on a guarantee?  My friend was happy.  If I have something that needs sealing I would probably use the Blue Devil sealant.  I would be a little more thorough in flushing first.

**Q: What is the difference between this and the blue devil head gasket sealer?**
A: I imagine it's thicker

**Q: Do u need to flush engine first?**
A: The directions on the bottle specifically say: "NOTE: DIRTY (OR CLOGGED) SYSTEMS SHOULD BE CHEMICALLY FLUSHED BEFORE INSTALLING BLUEDEVIL RADIATOR & BLOCK SEALER".

**Q: Can this help if you have a cracked block due to not having enough protection from a deep freeze?**
A: My opinion is that it depends on the crack. I don’t think it will help you

## Frequently Bought Together

- BlueDevil Products 00205 Radiator & Block Sealer - 16 Ounce
- BlueDevil Products 49499 Oil Stop Leak - 8 Ounce
- BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

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**Shop now:** [https://www.desertcart.ph/products/12883357-bluedevil-radiator-and-block-sealer-16-oz-permanent-repair-radiator](https://www.desertcart.ph/products/12883357-bluedevil-radiator-and-block-sealer-16-oz-permanent-repair-radiator)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-26*