---
product_id: 89487863
title: "577 Thread Sealant 50 mL Tube"
brand: "loctite"
price: "R$920"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/89487863-577-thread-sealant-50-ml-tube
store_origin: BR
region: Brazil
---

# Fast curing, long-lasting lock Seals straight & taper threads Medium-strength sealant 577 Thread Sealant 50 mL Tube

**Brand:** loctite
**Price:** R$920
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it tight, lock it right – don’t let your threads slip!

## Quick Answers

- **What is this?** 577 Thread Sealant 50 mL Tube by loctite
- **How much does it cost?** R$920 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/89487863-577-thread-sealant-50-ml-tube)

## 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

- • **Compact & Convenient:** 50 mL tube fits easily in your toolkit for on-the-go fixes
- • **Space-Filling Formula:** Fills gaps to prevent leaks and corrosion
- • **Trusted Brand Quality:** Loctite’s proven performance for professional-grade results
- • **Reliable Thread Locking:** Ensures secure, leak-proof connections every time
- • **Versatile Compatibility:** Perfect for both straight and taper threaded fittings

## Overview

Loctite 577 is a medium-strength thread sealant designed for straight and taper threaded fittings. It fills gaps between threads, providing a secure, leak-proof seal and locking mechanism in a compact 50 mL tube, ideal for professional and DIY use.

## Description

577 Thread Sealant 50 mL Tube

## Features

- LOCTITE 577 Medium-strength, general purpose thread sealant for straight/straight and straight/taper threads and fittings. Fills the space between threaded parts and seals and locks at the same time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Loctite |
| Part number | 2068749 |
| Item Weight | 18 g |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 18 g |
| Item model number | 2068749 |
| Size | 1-(Pack) |
| Colour | Yellow |
| Style | Compact |
| Item Package Quantity | 1 |
| Measurement System | US |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Loctite
- **Style:** Compact
- **Item dimensions L x W x H:** 25 x 25 x 25 millimetres
- **Compatible material:** Metal
- **Item form:** Liquid, Gel

## Images

![577 Thread Sealant 50 mL Tube - Image 1](https://m.media-amazon.com/images/I/51xZil+WyrL.jpg)

## Questions & Answers

**Q: Can this be used on natural gas grill orifices?**
A: No. Heat is used to loosen this sealant. Use pipe dope.

**Q: Is this compatible with propane lines?**
A: It should be I never used it 
I did used it on auto gas systems which are a propane mix

**Q: Would I need to use the 7649 primer if I was screwing a brass fitting (active metal) into a stainless steel (inactive metal)?**
A: Actually I would recommend anti-seize compound.  This will lock the thread where anti-seize will prevent reaction between dissimilar metals

## Frequently Bought Together

- 577 Thread Sealant 50 mL Tube
- Loctite 2087067 567 Thread Sealant 50 mL Tube, White (Pack of 1)
- Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 Ounces, 50 mL, 3/4" Thread

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**Shop now:** [https://www.desertcart.com.br/products/89487863-577-thread-sealant-50-ml-tube](https://www.desertcart.com.br/products/89487863-577-thread-sealant-50-ml-tube)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-11*