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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.








| ASIN | B002KGIGDA |
| Best Sellers Rank | 383,949 in DIY & Tools ( See Top 100 in DIY & Tools ) 3,717 in Sealers |
| Brand | LA-CO |
| Colour | White |
| Compatible Material | Metal |
| Customer Reviews | 4.6 4.6 out of 5 stars (223) |
| Global Trade Identification Number | 00048615420196 |
| Item Form | Liquid |
| Manufacturer | LA-CO Markal |
| Manufacturer Part Number | 42019 |
| Material | Polytetrafluoroethylene |
| Model Number | 42019 |
| Number of Items | 1 |
| Style Name | Brush in Cap Jar |
| Surface Recommendation | Metal,Plastic |
| UPC | 048615420196 |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
A**.
The best on the market!!
I wouldn't dream of using anything else but this! Its the best on the market by far. Excellent!!
V**N
Store in a sealed zip bag !!!
Leaking tin !!!! Applicator brush set solid ..
J**F
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.
G**E
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...
P**I
THIS STUFF IS THE BOMB! Stopped an engine oil pressure sensor leak that the "name brands" failed to seal!!!! No need for long cure times either; just apply to threads, torque it down, and your good to go!! THIS IS NOW MY GO-TO THREAD SEALER!!
T**R
Great stuff. Help end the use of Teflon tape!
C**Y
This is a great product. However the bottle I received came up a quarter light. Maybe because the lid does not close. Maybe for other reasons we do not mention here.
Trustpilot
1 day ago
1 month ago