---
product_id: 254000384
title: "AS145 Radiator Sealer Stop Leak - 11 oz."
brand: "prestone"
price: "HK$450"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/254000384-as145-radiator-sealer-stop-leak-11-oz
store_origin: HK
region: Hong Kong
---

# Seals leaks up to 0.020" Patented formula Corrosion protection AS145 Radiator Sealer Stop Leak - 11 oz.

**Brand:** prestone
**Price:** HK$450
**Availability:** ✅ In Stock

## Summary

> 🚗 Seal the Deal with Prestone!

## Quick Answers

- **What is this?** AS145 Radiator Sealer Stop Leak - 11 oz. by prestone
- **How much does it cost?** HK$450 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/254000384-as145-radiator-sealer-stop-leak-11-oz)

## Best For

- prestone enthusiasts

## Why This Product

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

## Key Features

- • **Quick Leak Fix:** Patented formula rapidly seals leaks in radiators, water pumps, and heater cores.
- • **Versatile Sealing:** Effectively seals even large leaks without disrupting fluid flow.
- • **Advanced Protection:** Boosts corrosion inhibitors to prevent future leaks and pitting.
- • **Compact Convenience:** Lightweight and easy to use, perfect for on-the-go repairs.
- • **No Assembly Required:** Simply pour and go—no tools needed for a quick fix.

## Overview

The Prestone AS145 Radiator Sealer Stop Leak is a powerful 11 oz. solution designed to quickly seal leaks in your vehicle's radiator, water pump, and heater core. Its patented formula not only stops leaks but also protects against corrosion, ensuring your vehicle runs smoothly and efficiently.

## Description

AS145 Radiator Sealer Stop Leak - 11 oz.

## Features

- Patented formula quickly stops leaks in radiators, water pumps, and heater cores
- Boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks
- Combination of natural and synthetic components provides the ability to seal leaks up to 0.020" x 0.5"
- Seals even large leaks without interfering with the flow through the radiator or heater core
- Stops the leak as well as the corrosive condition that causes it

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Prestone |
| Style | Compact |
| Item Weight | 363 g |
| Item dimensions L x W x H | 49 x 77 x 143 Millimeters |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| UPC | 797496876546 |
| Global Trade Identification Number | 00797496876546 |
| Manufacturer | Prestone |
| Model | AS145 |
| Product Dimensions | 4.85 x 7.72 x 14.33 cm; 362.87 g |
| Item model number | AS145 |
| Manufacturer Part Number | AS145 |
| Assembly Required | No |
| Manufacturer | Prestone |

## Product Details

- **Material:** Synthetic
- **Brand:** Prestone
- **Style:** Pumps
- **Item Weight:** 13.12 ounces
- **Item dimensions L x W x H:** 1.91 x 3.04 x 5.64 inches

## Images

![AS145 Radiator Sealer Stop Leak - 11 oz. - Image 1](https://m.media-amazon.com/images/I/61u3q1e7qTL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it change the color of the anifreeze ?**
A: Yes it will slightly alter the color but it will not alter the coolant properties in the Antifreeze.

**Q: Do you have to use 50/50 antifreeze coolant or can you use water in replace of antifreeze?**
A: You can. I wouldn’t. Antifreeze is also coolant. You should never put straight water in your radiator.

**Q: Can I use on comercial truck**
A: Yes worked on mine

**Q: What are the directions for this product**
A: Shake bottle vigorously to mix contents. With engine cold, remove radiator cap and pour contents in radiator. Replace cap, start engine, turn heater on and run until engine reaches normal operating temperature.

## Frequently Bought Together

- Prestone AS145 Stop Leak Repair for Radiators, Heater Cores, and Hoses, 11 oz., 1 Pack
- Valvoline Multi-Vehicle 50/50 Ready-to-Use Antifreeze/Coolant 1 GA
- K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

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**Shop now:** [https://www.desertcart.hk/products/254000384-as145-radiator-sealer-stop-leak-11-oz](https://www.desertcart.hk/products/254000384-as145-radiator-sealer-stop-leak-11-oz)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-07*