


🛠️ Seal Smart, Seal Strong — The Pro’s Choice for Leak-Free Confidence!
LA-CO 42019 Slic-Tite Premium Thread Sealant Paste is a PTFE-based, USDA-approved heavy-duty sealant designed for metal and plastic pipe threads. It withstands extreme temperatures from -50 to 500°F and is safe for use with water, gases, oils, and refrigerants. Featuring a convenient brush-in-cap jar, it offers precise application and easy cleanup, making it the trusted solution for professionals demanding reliable, non-toxic sealing performance.








| ASIN | B002KGIGDA |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 354,877 in DIY & Tools ( See Top 100 in DIY & Tools ) 3,338 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 |
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...
T**R
Great stuff. Help end the use of Teflon tape!
E**S
Really worked very well. You have to put this on both the pipe and the fitting to make sure it gets into the threads. The only problem is the smell, it lasts for days to weeks. I used this on a steam pipe and the smell(which can burn the eyes) is now almost gone after 2 weeks. Use in very well ventilated place or during the warm weather so you can keep the window open. I would recommend this product.
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!!
TrustPilot
1天前
2 周前