

🔵 Seal Smart, Work Fast, Stay Leak-Free!
RectorSeal Tru-Blu 31780 is a fast-drying, PTFE-enriched pipe thread sealant designed for professional plumbers and tradespeople. It delivers a flexible, durable seal that withstands high vibration and thermal expansion, compatible with a wide range of pipe materials including metals and plastics. Lead-free and low odor, it’s ideal for potable water systems and industrial applications, making it a trusted choice for reliable, leak-proof plumbing solutions.









| ASIN | B004QXT134 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #9,888 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #21 in Industrial Thread Sealants |
| Color | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (306) |
| Date First Available | October 25, 2011 |
| Included Components | 1 Container of Tru-Blu |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.8 ounces |
| Item model number | 31780 |
| Manufacturer | The Rectorseal Corporation |
| Material | Sealant Material (e.g., Polytetrafluoroethylene, Synthetic Rubber) |
| Part Number | 31780 |
| Product Dimensions | 1.5 x 1.5 x 5.5 inches |
| Size | Blue |
| Style | Pipe Thread Sealant |
| Warranty Description | Warranty |
A**R
Big blue
Great product and value
B**.
Reliable sealant for plumbing — no leaks, no fuss!
I used the RectorSeal 31780 Tru-Blu Pipe Thread Sealant when replacing a shower faucet and bathroom sink, and it worked perfectly. The sealant applied smoothly, sealed tight, and I haven’t had any leaks since. It’s great that it works on different materials and stays flexible with temperature changes, which is important in plumbing setups. Easy to use and clean up, too. If you want a dependable thread sealant for your bathroom or plumbing projects, this is a solid choice!
J**D
Pipe Sealant
This product works great. Water tight seal, especially good for dissimilar materials.
M**N
Small an not wasteful
Nice works great I got this to do a water pump worked great
F**E
Better Than Teflon Tape
Excellent sealant. Far better than teflon tape. Used this to install new PRV and add a pressure gauge.
J**T
Tru blue
My favorite pipe dope. Like all things pipe dope and antiseize it will somehow end up on your hands or pants no matter how much you try to avoid it.
L**T
Defective tube
I received it however, it had a hole in the back of it and was leaking all over the place so I ended up having to go by some at the store because I bought it to have my heater installed and they came to install my heater and I didn't have the sealant for it because of the defective tube and it ended up costing me twice as much from having to go to the hardware store.
J**S
Works
Worked good no leaks
S**.
Excelente producto a buen precio.
B**.
Brilliant product with so many useses
A**R
Great stuff stopped the leak
G**G
Perfect quality quick drying
A**R
Used on different size pipes and it works.Good seal.
Trustpilot
2 dagen geleden
3 weken geleden