---
product_id: 14156074
title: "RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint"
brand: "rectorseal"
price: "AR$31987"
currency: ARS
in_stock: true
reviews_count: 8
category: "Rectorseal"
url: https://www.desertcart.com.ar/products/14156074-rectorseal-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe
store_origin: AR
region: Argentina
---

# Designed for high vibration & thermal expansion PTFE enriched for superior thread lubrication Fast-dry formula RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint

**Brand:** rectorseal
**Price:** AR$31987
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it fast, seal it right — the pro’s choice for unstoppable pipes!

## Quick Answers

- **What is this?** RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint by rectorseal
- **How much does it cost?** AR$31987 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/14156074-rectorseal-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe)

## Best For

- rectorseal enthusiasts

## Why This Product

- Trusted rectorseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Join thousands of tradesmen who rely on RectorSeal’s proven quality and American-made reliability.
- • **Rapid Drying Power:** Get your projects moving faster with a sealant that sets in no time.
- • **Universal Compatibility:** Works seamlessly on galvanized steel, brass, copper, PVC, and more—one sealant to rule them all.
- • **PTFE-Enhanced Durability:** Experience unmatched thread protection and lubrication for long-lasting seals.
- • **Vibration & Heat Resistant:** Engineered to withstand intense vibrations and thermal shifts without failure.

## Overview

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.

## Description

Product Description RectorSeal Tru-Blu pipe sealant is designed for plumbers and home improvement professionals to use in areas of high vibration and thermal expansion/contraction. Our pipe thread sealant with PTFE is a fast-dry, flexible set thread sealant that is ideal for home improvement, plumbing and industrial applications; excellent as a gasket adhesive on flanges. Tru-Blu pipe dope thread sealant lubricates and protects pipe threads; lead free and contains no metal. For pipe made of galvanized steel, iron, brass, copper, aluminum, stainless steel, PVC, CPVC, polyethylene, and reinforced fiberglass. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets From the Manufacturer RectorSeal Tru-Blu pipe thread sealant with PTFE is a fast-dry, flexible set thread sealant designed for high vibration environments such as refrigeration and industrial applications.

Review: 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 👍
Review: 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!

## Features

- Adhesives & Sealants
- Country of manufacture: United States
- Manufacturer: Rectorseal
- This product manufacture by United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0012YO0Z4 |
| Best Sellers Rank | #2,408 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Industrial Thread Sealants |
| Brand | Rectorseal |
| Brand Name | Rectorseal |
| Color | Blue |
| Compatible Material | Polyvinyl Chloride |
| Customer Reviews | 4.7 out of 5 stars 2,132 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 |

## Product Details

- **Brand:** Rectorseal
- **Item Weight:** 6.72 ounces
- **Item dimensions L x W x H:** 2 x 2 x 3.5 inches
- **Material:** Polytetrafluoroethylene
- **Style:** Thread Sealants

## Images

![RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint - Image 1](https://m.media-amazon.com/images/I/61wP-JNJngL.jpg)
![RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint - Image 2](https://m.media-amazon.com/images/I/81KIc7pabHL.jpg)
![RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint - Image 3](https://m.media-amazon.com/images/I/51+0p3540oL.jpg)
![RectorSeal Tru-Blu 31631 Pipe Thread Sealant, Fast-Dry, PTFE Enriched, Plumbing, Designed for high Vibration environments and Thermal Expansion/Contraction, 1/4 Pint - Image 4](https://m.media-amazon.com/images/I/51qBid7FShL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: can I use this for hot water conxt, and on brass / copper?**
A: Absolutely, I’ve used it for that and also for natural gas and gasoline with excellent results.

**Q: not used tru blue befor when tightend how long befor i can us shower**
A: It can be used immediately.

**Q: I need to connect npt threaded stainless steel male fitting to a plastic female inlet on a water filter. t plus 2 or tru-blu or another sealant?**
A: I typically don’t use anything but Teflon tape on any plastic fittings. Chemicals in liquid or paste sealants could soften the plastic.

**Q: Can this be used on gasoline fuel lines**
A: Yes. The Product Document Sheet says it is suitable for use with gasoline, both leaded and unleaded.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sticky stuff that mostly works
*by M***L on October 1, 2026*

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 👍

### ⭐⭐⭐⭐⭐ Plumbing like a pro?
*by P***D on September 23, 2026*

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!

### ⭐⭐⭐⭐⭐ Works like it should!
*by K***N on July 21, 2026*

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.

## Frequently Bought Together

- Rectorseal 31631 1/4 Pint Brush Top Tru-Blu Pipe Thread Sealant , Blue
- VOTMELL 4 Rolls 1/2 Inch(W) X 520 Inches(L) Teflon Plumbers Tape,Pipe Sealing & Plumbing Thread Tape,PTFE Water Sealant Seal for Shower Head,White
- Harvey's WM Harvey 043010 Stainless Plumbers Putty, 14 oz

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-09*