---
product_id: 14111531
title: "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: "€ 52.47"
currency: EUR
in_stock: true
reviews_count: 13
category: "La Co"
url: https://www.desertcart.sk/products/14111531-42019-slic-tite-premium-thread-sealant-paste-with-ptfe-50
store_origin: SK
region: Slovakia
---

# Handles 10,000 PSI liquid pressure Withstands up to 500°F Brush-in-cap for precise application 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:** € 52.47
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal like a pro, tighten with confidence!

## Quick Answers

- **What is this?** 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?** € 52.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/14111531-42019-slic-tite-premium-thread-sealant-paste-with-ptfe-50)

## 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

- • **Pressure-Proof Seal:** Endures up to 10,000 PSI on liquids and 3,000 PSI on gases for industrial-strength reliability.
- • **Trusted by Pros for Decades:** A go-to sealant for 50+ years, favored by plumbing and gas fitting experts for lasting, leak-proof joints.
- • **Versatile Thread Compatibility:** Seals metal, PVC, CPVC, and ABS threads including ANSI/ASME NPT and BSPT standards.
- • **Unrivaled High-Temp Performance:** Operates flawlessly from -50°F to 500°F, perfect for extreme environments.
- • **Effortless Cleanup & Application:** Brush-in-cap design ensures mess-free, precise application and easy removal from skin and clothes.

## Overview

LA-CO 42019 Slic-Tite is a premium PTFE thread sealant paste designed for high-pressure and high-temperature applications. Compatible with multiple pipe materials and thread standards, it offers superior sealing for water, gas, steam, and more. Its brush-in-cap jar allows precise application, while its easy cleanup saves time. Trusted by professionals for over five decades, it ensures durable, leak-proof connections in demanding environments.

## Description

Specially formulated with PTFE for added sealing power, Slic-tite is the premium thread sealant paste. It has been successfully used for decades to seal water, air, steam, natural gas, and more. It removes easily from skin and clothing, reducing post-job cleanup time. Slic-tite thread sealant works in extremely high-pressure systems, and it comes with several approvals to ensure industry standards are met.

Review: Good stuff - 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.
Review: If it has threads this it!! - I've been using laco for 50 years of my life in the plumbing and gas fitting trade. High end restaurants,it seals the threads and has lubricant abilities which allows the fitting to tighten even better. Best part is years later when undoing fittings they come right apart. If I could give it 10 stars I would. Retired 4 years ago and yep got a bottle in my tool bag. Very easy to use and any excess wipes right off...

## Features

- LA-CO Slic-Tite is the premium thread sealant paste that can be used on metal, PVC, CPVC and ABS plastic pipe threads
- For sealing water, air, steam, natural gas, LP gas, refrigerants, ammonia, gasoline, ethanol and oil
- Paste washes off hands and clothing easily
- Paste should be applied to a thickness of at least twice the depth of the thread root to ensure an adequate amount gets into the joint.
- Pressures: 3,000 PSI (204 BAR) for gas; 10,000 PSI (680 BAR) for liquid
- Pipe Thread Types: For use with taper-taper threads, such as ANSI/ASME NPT, British BS 21 type BSPT, Australian AS 1722.1 type RC/R

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002KGIGDA |
| Best Sellers Rank | #19,574 in Automotive ( See Top 100 in Automotive ) #51 in Thread Lock Sealers |
| Brand | La-Co |
| Color | White |
| Date First Available | November 9, 2004 |
| Global Trade Identification Number | 00048615420196 |
| Item Form | Paste |
| Item Weight | 13.4 ounces |
| Item model number | 42019 |
| Manufacturer | LA-CO Markal |
| Material | Plastic, Polytetrafluoroethylene |
| Number of Items | 1 |
| Style | Brush in Cap Jar |
| Surface Recommendation | Plastic |
| UPC | 048615420196 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** La-Co
- **Item Form:** Paste
- **Material:** Plastic, Polytetrafluoroethylene
- **Style:** Brush in Cap Jar
- **Water Resistance Level:** Water Resistant

## Images

![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/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

### ⭐⭐⭐⭐⭐ Good stuff
*by J***F on February 16, 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.

### ⭐⭐⭐⭐⭐ If it has threads this it!!
*by G***E on April 29, 2024*

I've been using laco for 50 years of my life in the plumbing and gas fitting trade. High end restaurants,it seals the threads and has lubricant abilities which allows the fitting to tighten even better. Best part is years later when undoing fittings they come right apart. If I could give it 10 stars I would. Retired 4 years ago and yep got a bottle in my tool bag. Very easy to use and any excess wipes right off...

### ⭐⭐⭐⭐⭐ Great stuff. I dislike tape.
*by T***R on September 23, 2025*

Great stuff. Help end the use of Teflon tape!

## Frequently Bought Together

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-26*