---
product_id: 12372323
title: "592 Automotive Opaque Thread Sealant - High-Pressure, High-Viscosity, Prevents Galling - 50 ml, 1 Pack"
brand: "loctite"
price: "163 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Loctite"
url: https://www.desertcart.ro/products/12372323-592-automotive-opaque-thread-sealant-high-pressure-high-viscosity-prevents
store_origin: RO
region: Romania
---

# High-viscosity, prevents galling Withstands temps up to 400°F OEM-approved, pro-grade reliability 592 Automotive Opaque Thread Sealant - High-Pressure, High-Viscosity, Prevents Galling - 50 ml, 1 Pack

**Brand:** loctite
**Price:** 163 Lei
**Availability:** ✅ In Stock

## Summary

> 🔩 Seal it like a pro—lock in performance, unlock peace of mind!

## Quick Answers

- **What is this?** 592 Automotive Opaque Thread Sealant - High-Pressure, High-Viscosity, Prevents Galling - 50 ml, 1 Pack by loctite
- **How much does it cost?** 163 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/12372323-592-automotive-opaque-thread-sealant-high-pressure-high-viscosity-prevents)

## Best For

- loctite enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Grade OEM Approval:** Trusted by top auto manufacturers and engine builders worldwide for unmatched reliability.
- • **Durable & Water Resistant:** Engineered to resist hydraulic fluids, diesel, and water for long-lasting, maintenance-free operation.
- • **Versatile Thread Protection:** Secures fuel, oil, coolant, brake, and steering fittings against leaks, vibration, and moisture.
- • **Extreme Temperature Resilience:** Maintains leak-proof seals even under intense heat up to 400°F—no compromises on performance.
- • **Smooth Assembly & Repositioning:** Lubricates threads for hassle-free installation with up to 24 hours to adjust parts post-application.

## Overview

LOCTITE 592 Automotive Opaque Thread Sealant is a high-viscosity, OEM-approved solution designed for high-pressure automotive applications. It reliably seals metal threaded fittings against leaks, vibration loosening, and extreme temperatures up to 400°F. Trusted by professionals, it ensures smooth assembly with repositioning flexibility and durable protection against moisture, hydraulic fluids, and diesel fuels.

## Description

The LOCTITE Automotive Opaque Thread Sealant 592 is a high-performance solution designed for high-pressure applications, offering reliable thread sealing and protection. This 50 ml sealant is OEM-approved, trusted by professionals in engine building and repair, and rigorously tested by leading automotive manufacturers. It delivers secure seals in various applications such as fuel, oil, coolant, brake, and steering fittings. With its high viscosity and resistance to extreme temperatures up to 400°F, it prevents leaks and protects against vibration loosening, moisture, hydraulic fluids, and diesel fuels. The sealant also offers easy assembly and disassembly, allowing parts to be repositioned for up to 24 hours after application.

Review: Works on Avgas. - Used this to seal a check valve into an aircraft fuel tank. Easy to apply. Does the job. Used on 1/2 inch pipe threads.
Review: Great stuff - This stuff is amazing. Made putting AN connections together so much easier with no leaks.

## Features

- OEM-Approved Performance: LOCTITE automotive products are not only OEM-specified but also designed and tested by leading auto manufacturers. Trusted by professionals in engine building and repair worldwide (PN: 483630)
- Reliable Thread Sealing: Automotive-grade performance for secure seals in fuel fillings, oil and coolant lines, brake, and steering fittings
- Medium-Temp Resistance: Prevents leaks in threaded metal fittings, even in extreme temperatures up to 400°F
- Comprehensive Protection: Defends against leaks, vibration loosening, moisture, hydraulic fluids, and diesel fuels for lasting reliability
- Hassle-Free Assembly: Thread lubrication ensures smooth assembly and disassembly, with the flexibility to reposition parts for up to 24 hours after application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002KKTH2 |
| Best Sellers Rank | #17,082 in Automotive ( See Top 100 in Automotive ) #41 in Thread Lock Sealers |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | off-white |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.6 out of 5 stars 352 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340373976 |
| Included Components | (1) 592 Thread Sealant for Automotive | Opaque, Off-White, 50 ml Tube |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | LOCTITE PST 592 Thread Sealant for Automotive: Low-Pressure, High-Viscosity, Anaerobic, Prevents Galling | Opaque, Off-White, 50 ml Tube (PN: 483630) |
| Manufacturer | Loctite |
| Material | Acrylic,Metal |
| Material Type | Acrylic,Metal |
| Model | 37397 |
| Other Special Features of the Product | Strong |
| Special Feature | Strong |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340373976 |
| Unit Count | 50 Milliliters |
| Viscosity | high |
| Volume | 50 Milliliters |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Loctite
- **Item Form:** Liquid
- **Material:** Acrylic,Metal
- **Special Feature:** Strong
- **Specific Uses For Product:** Fleet and plant maintenance.

## Images

![592 Automotive Opaque Thread Sealant - High-Pressure, High-Viscosity, Prevents Galling - 50 ml, 1 Pack - Image 1](https://m.media-amazon.com/images/I/71JM6nUMAmL.jpg)

## Questions & Answers

**Q: How much should I apply to the threads on a hydraulic fitting? It says 3/4 of a thread but I don’t know how much that really is...**
A: Loctite 592 has a ribbon style nozzle, wide slot for discharge.  The correct method is to hold the end of the nozzle up against the side of the fitting, so the width of the slot opening is across a few threads.  As you squeeze the tube gently and dispense the sealant into the root of the threads, slide the nozzle around the fitting in order to go ¾ of the way around the tube.  Feel free to go 360° around if you wish.  That’s a little excess material but won’t really hurt.  You end up with sealant in the root of the treads only, which is enough.  Hope that helps.

**Q: Is the "activator" necessary or will the sealant work without it?**
A: While the manufacturer recommends cleaning with their cleaner (that just happens to be a primer and activator) I have used the 592 thread sealant and even the 518 gasket maker with other cleaners such as vm&p naphtha (that is not a primer or activator) with excellent results.  A primer is recommended when both surfaces are considered "inactive". The Loctite primer defines what this is.

**Q: How strong is the thread locker? Can fittings be removed?**
A: This is not thread locker.  This is thread sealant (like pipe dope).  You will be able to remove the fittings.

**Q: I have a brass engine coolant temperature gauge leaking. Do i have to drain the coolant before using and let dry completely?**
A: The fitting must be clean and dry prior to applying the 592, and it should be allowed to cure for at least 24 hours (preferably 72) before adding the coolant back into the system.  Any other questions, please reach out to our technical team at 1-800-LOCTITE

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works on Avgas.
*by M***D on October 26, 2025*

Used this to seal a check valve into an aircraft fuel tank. Easy to apply. Does the job. Used on 1/2 inch pipe threads.

### ⭐⭐⭐⭐⭐ Great stuff
*by J***H on August 21, 2025*

This stuff is amazing. Made putting AN connections together so much easier with no leaks.

### ⭐⭐⭐⭐⭐ Works fine and great value
*by J***N on January 6, 2025*

Stuff works great and exactly as advertised. Used on differential for 2021 jeep wrangler.

## Frequently Bought Together

- LOCTITE PST 592 Thread Sealant for Automotive: Low-Pressure, High-Viscosity, Anaerobic, Prevents Galling | Opaque, Off-White, 50 ml Tube (PN: 483630)
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-18*