---
product_id: 14156074
title: "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: "S$16"
currency: SGD
in_stock: true
reviews_count: 8
category: "Rectorseal"
url: https://www.desertcart.sg/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched
store_origin: SG
region: Singapore
---

# PTFE enriched for superior thread lubrication Fast-dry formula Designed for high vibration & thermal expansion 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:** S$16
**Availability:** ✅ In Stock

## Summary

> 🔵 Seal smart, seal fast — don’t let leaks slow your flow!

## Quick Answers

- **What is this?** 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?** S$16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched)

## 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

- • **PTFE Power:** Enhanced lubrication and protection for leak-proof pipe threads
- • **Rapid-Dry Precision:** Dries quickly to keep your projects moving without delay
- • **Trade-Trusted Quality:** Preferred by pros for plumbing, HVAC, and industrial use
- • **Universal Compatibility:** Works flawlessly on PVC, steel, brass, copper, and more
- • **Vibration-Resistant Seal:** Engineered to withstand intense vibration and thermal shifts

## Overview

RectorSeal Tru-Blu 31631 is a fast-drying, PTFE-enriched pipe thread sealant designed for high vibration and thermal expansion environments. Compatible with a wide range of materials including PVC, steel, and copper, it offers a flexible, waterproof seal trusted by professionals in plumbing and HVAC. Made in the USA, this lead-free, metal-free paste ensures durable, leak-proof connections with minimal mess.

## 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: Better than Teflon tape. - Works way better than PTFE tape, works on water pipes, air pipes and resistant to a lot of chemicals. I've stopped using teflon tape all together. Quick setting time too.
Review: Worth the money. - If you have pvc pipe then you know that it moves and that you have to seal it and that the blue glue is the best to seal it as it is water proof but not so solid that you can't cut it with a blade if you need to. It is easy to use, low order, works great, light mess, mix it up and it will thin out you do not want big clumps. thin coat around the pvc pipe. dries with in a few minutes.

## 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 | #1,391 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 1,985 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 | 0.42 Pounds |
| 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 |
| Part Number | 31631 |
| Style | Thread Sealants |
| Style Name | Thread Sealants |
| Surface Recommendation | Pipe |
| UPC | 021449316316 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Rectorseal
- **Item Weight:** 0.42 Pounds
- **Item dimensions L x W x H:** 2 x 2 x 3.5 inches
- **Material:** Polytetrafluoroethylene
- **Style:** Thread Sealants

## Images

![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)
![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)
![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)
![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

### ⭐⭐⭐⭐⭐ Better than Teflon tape.
*by R***T on April 24, 2026*

Works way better than PTFE tape, works on water pipes, air pipes and resistant to a lot of chemicals. I've stopped using teflon tape all together. Quick setting time too.

### ⭐⭐⭐⭐⭐ Worth the money.
*by J***S on December 16, 2025*

If you have pvc pipe then you know that it moves and that you have to seal it and that the blue glue is the best to seal it as it is water proof but not so solid that you can't cut it with a blade if you need to. It is easy to use, low order, works great, light mess, mix it up and it will thin out you do not want big clumps. thin coat around the pvc pipe. dries with in a few minutes.

### ⭐⭐⭐⭐⭐ Seals joints air tight.
*by N***R on April 8, 2026*

Tried this in place of yellow stuff, white stuff and teflon tape. Seems to work well. No air leaks on a compressor upgrade.

## 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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**Shop now:** [https://www.desertcart.sg/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched](https://www.desertcart.sg/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-05-19*