---
product_id: 167698849
title: "LA-CO 42019 Slic-Tite Premium Thread Sealant Paste with PTFE, -50 to 500 Degree F Temperature, 1/2 pt Jar with Brush in Cap , White"
brand: "la-co"
price: "HK$330"
currency: HKD
in_stock: true
reviews_count: 7
url: https://www.desertcart.hk/products/167698849-la-co-42019-slic-tite-premium-thread-sealant-paste-ptfe
store_origin: HK
region: Hong Kong
---

# Brush-in-cap for precise application Wide -50 to 500°F range PTFE-infused heavy-duty sealant LA-CO 42019 Slic-Tite Premium Thread Sealant Paste with PTFE, -50 to 500 Degree F Temperature, 1/2 pt Jar with Brush in Cap , White

**Brand:** la-co
**Price:** HK$330
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal like a pro, stress-free and mess-free!

## Quick Answers

- **What is this?** LA-CO 42019 Slic-Tite Premium Thread Sealant Paste with PTFE, -50 to 500 Degree F Temperature, 1/2 pt Jar with Brush in Cap , White by la-co
- **How much does it cost?** HK$330 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/167698849-la-co-42019-slic-tite-premium-thread-sealant-paste-ptfe)

## Best For

- la-co enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Clean Usage:** Non-toxic, non-drying formula that washes off hands and clothes with ease—no sticky residue
- • **Versatile Compatibility:** Works seamlessly on metal, PVC, CPVC, and ABS pipe threads for all your projects
- • **Trusted Industry Standard:** USDA authorized for federally inspected meat and poultry plants—professional-grade reliability
- • **Effortless Precision Application:** Innovative brush-in-cap design ensures mess-free, exact coverage every time
- • **Unmatched Temperature Resilience:** Seals flawlessly from freezing cold to scorching heat (-50 to 500°F)

## Overview

LA-CO 42019 Slic-Tite Premium Thread Sealant Paste is a PTFE-enhanced, heavy-duty sealing compound designed for extreme temperature ranges (-50 to 500°F). Its brush-in-cap jar offers precise, clean application on metal and plastic pipe threads, making it ideal for water, gas, steam, and chemical lines. Non-toxic and USDA authorized, it delivers professional-grade performance trusted in critical environments.

## Description

MKL42019 Features: -MARKAL. -Heavy-duty thread sealing compound.Authorized by USDA for use in federally inspected meat and poultry plants.Washes off hands and clothing easily.. -No Shipment By Air. -UNSPC CODE: 23171500. Product Type: -Thread Sealants.

Review: The best on the market!! - I wouldn't dream of using anything else but this! Its the best on the market by far. Excellent!!
Review: Store in a sealed zip bag !!! - Leaking tin !!!! Applicator brush set solid ..

## Features

- Safety data sheet available on request.
- Use on metal, PVC, CPVC and ABS plastic pipe threads
- For sealing water, air, steam, natural gas, LP gas, refrigerants, ammonia, gasoline, ethanol and oil
- Washes off hands and clothing easily
- Non-toxic, non-drying

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002KGIGDA |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 363,845 in DIY & Tools ( See Top 100 in DIY & Tools ) 3,443 in Sealers |
| Colour | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (220) |
| Date First Available | 9 Nov. 2004 |
| Item Package Quantity | 1 |
| Item Weight | 380 g |
| Item model number | 42019 |
| Manufacturer | LA-CO Markal |
| Material | Polytetrafluoroethylene |
| Part number | 42019 |
| Size | 1/2 pt B-N-C |
| Style | Brush in Cap Jar |
| Temperature Range | -50/500 Degrees Fahrenheit |

## Product Details

- **Brand:** LA-CO
- **Item form:** Paste
- **Material:** Polytetrafluoroethylene
- **Style:** Brush in Cap Jar
- **Water resistance level:** Water Resistant

## Images

![LA-CO 42019 Slic-Tite Premium Thread Sealant Paste with PTFE, -50 to 500 Degree F Temperature, 1/2 pt Jar with Brush in Cap , White - Image 1](https://m.media-amazon.com/images/I/41YenV-D2yL.jpg)
![LA-CO 42019 Slic-Tite Premium Thread Sealant Paste with PTFE, -50 to 500 Degree F Temperature, 1/2 pt Jar with Brush in Cap , White - Image 2](https://m.media-amazon.com/images/I/81-B09JAZWL.jpg)

## Questions & Answers

**Q: My pvc sewer pipe threaded access point is leaking. will using this seal off the access point indefinitely or still allow access?**
A: It won't glue it tight but seal the threads from leaking! You can unscrew it off and on anytime but might need to add some off n on! Good stuff!

**Q: Would this be good to utilize on an oil drain plug before reinstalling during automotive oil changes?**
A: I wouldn't recommend that. This has bits of Teflon and they could get into the oil filter and clog it. Drain plugs are designed to have a gasket and not seal at the threads.  I would search for a new drain plug on Amazon for your car.

**Q: How to revive old dried out slic-tite, is it water soluble?**
A: Hello, This is not water soluble product.  This is actually an oil/grease-based material.  You can try a little ethanol.  However, you should only try a little bit.  Adding too much will likely have a negative impact on the performance of the product.
Best Regards,
LA-CO team

**Q: Can someone check the back label, does it have ingredients list? Specifically, would like to know if there is silicone in it.**
A: No ingredients list. Does not specify anything besides containing PTFE. SDS mentions only titanium dioxide. OK for potable water.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best on the market!!
*by A***. on 17 July 2025*

I wouldn't dream of using anything else but this! Its the best on the market by far. Excellent!!

### ⭐⭐⭐ Store in a sealed zip bag !!!
*by V***N on 22 November 2025*

Leaking tin !!!! Applicator brush set solid ..

### ⭐⭐⭐⭐⭐ Review
*by J***F on 16 February 2025*

This stuff works great for ceiling pipe threads. I like to put this on my threads and then a little bit of Teflon tape over top of it or vice versa. Definitely worth the money. Great seal, easy to use, and easily removed with a towel.

## Frequently Bought Together

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- Dixon Valve TTB75 PTFE Industrial Sealant Tape, -212 to 500 Degree F Temperature Range, 3.5mil Thick, 520" Length, 3/4" Width, White

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-10*