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🔧 Seal it fast, seal it right — the pro’s choice for unstoppable pipes!
RectorSeal Tru-Blu 31631 is a fast-drying, PTFE-enriched pipe thread sealant designed specifically for high vibration and thermal expansion environments. Compatible with a wide range of materials including metals and plastics, it lubricates and protects threads while providing a flexible, water-resistant seal. Made in the USA and trusted by professionals, it’s ideal for plumbing, HVAC, and industrial applications.
| ASIN | B0012YO0Z4 |
| Best Sellers Rank | #1,657 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Industrial Thread Sealants |
| Brand | Rectorseal |
| Brand Name | Rectorseal |
| Color | Blue |
| Compatible Material | Polyvinyl Chloride |
| Customer Reviews | 4.7 out of 5 stars 2,130 Reviews |
| Global Trade Identification Number | 00021449316316 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions | 2 x 2 x 3.5 inches |
| Item Form | Paste |
| Item Type Name | Pipe Sealant |
| Item Weight | 6.72 ounces |
| Item dimensions L x W x H | 2 x 2 x 3.5 inches |
| Manufacturer | The Rectorseal Corporation |
| Material | Polytetrafluoroethylene |
| Material Type | Polytetrafluoroethylene |
| Model | 31631 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 31631 |
| Style | Thread Sealants |
| Style Name | Thread Sealants |
| Surface Recommendation | Pipe |
| UPC | 021449316316 |
| Unit Count | 1 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |
M**L
Sticky stuff that mostly works
Since I’m the default handyman dad for our house, I grabbed this Tru-Blu for a leaky threaded fitting on the line to our living room humidifier. It seals fast and doesn’t drip everywhere, which is nice. I do wish the brush in the lid was a bit stiffer though. It feels floppy and messy sometimes. Still, the joint has stayed dry so far 👍
K**S
Recommend!!
Took longer to cure than expected (24+ hours) but was in the lower level where it is quite cool. Did the trick on a compression fitting. 60 PSI and no leaks!!
M**R
This is great sealed for many things…
Great value, great seller and fast shipping!
D**K
Nice
Good product
K**N
Works like it should!
Only ones I use! Learned it from a contractor who builds houses, fixes pipes, etc. this is all he uses also! Great strong stuff! Will stop any leaks! Easy to use, kind of messy but easy enough to wipe.
P**D
Plumbing like a pro?
I am not a professional plumber but needed to replace my hot water heater. I used this in addition to PTFE tape and it sealed everything up beyond expectation - no leaks whatsoever. Very pleased with the results!
J**E
Great pipe sealant
Great buy, exactly as advertised. Fast shipping and would recommend.
R**N
None better!
Only brand I trust and this arrived on time and worked great!
Trustpilot
4 days ago
1 month ago