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🔧 Seal smarter, not harder — the pro’s choice for leak-free peace of mind!
LA-CO 42019 Slic-Tite Premium Thread Sealant Paste is a heavy-duty, PTFE-based compound designed for reliable sealing across metal and plastic pipe threads. It withstands extreme temperatures from -50°F to 500°F and is compatible with a wide range of fluids including gases and oils. Non-toxic and easy to clean, it’s USDA authorized for use in food processing environments, making it a trusted solution for professionals demanding durability and safety.
| Asin | B002KGIGDA |
| Best Sellers Rank | #781 in Hardware Sealers |
| Date First Available | 21 July 2014 |
| Item Model Number | 42019 |
| Manufacturer | LA-CO Markal |
User
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...
User
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.
User
Store in a sealed zip bag !!!
Leaking tin !!!! Applicator brush set solid ..
User
SUCCESSFULLY STOPPED an oil leak where the "name brands" failed!
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!!
User
Great stuff. I dislike tape.
Great stuff. Help end the use of Teflon tape!
Trustpilot
2 weeks ago
2 days ago