--- 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: "HK$129" currency: HKD in_stock: true reviews_count: 8 url: https://www.desertcart.hk/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched store_origin: HK region: Hong Kong --- # Fast-dry formula PTFE enriched for smooth threading Designed for thermal expansion & vibration 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:** HK$129 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it fast, seal it right — the pro’s choice for unstoppable pipes! ## 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?** HK$129 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 - • **Rapid Drying Power:** Get your projects moving faster with a sealant that sets in no time. - • **Universal Compatibility:** Works flawlessly on galvanized steel, brass, copper, PVC, and more—one sealant to rule them all. - • **PTFE-Enriched Lubrication:** Smooth application and superior thread protection for lasting durability. - • **Trusted Professional Grade:** Join thousands of pros who rely on RectorSeal’s proven quality and lead-free safety. - • **Vibration & Thermal Resilience:** Engineered to withstand high vibration and temperature 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 offers superior lubrication and protection for plumbing and industrial applications. Made in the USA, this lead-free, water-resistant sealant is trusted by professionals for reliable, long-lasting pipe connections. ## 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. ## 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 | #1,740 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #6 in Industrial Thread Sealants | | Brand Name | Rectorseal | | Color | Blue | | Compatible Material | Polyvinyl Chloride | | Customer Reviews | 4.7 4.7 out of 5 stars (2,093) 4.7 out of 5 stars | | 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 | | Manufacturer | The Rectorseal Corporation | | Material Type | Polytetrafluoroethylene | | Model | 31631 | | Number Of Items | 1 | | Number Of Packs | 1 | | Part Number | 31631 | | Style Name | Thread Sealants | | Surface Recommendation | Pipe | | Unit Count | 1 Count | | Upc | 021449316316 | | 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 ![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) ## 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 ### ⭐⭐⭐⭐⭐ Works like it should! *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ Better than Teflon tape. *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ It works on high heat hex threads *by on Reviewed in the United States July 11, 2026* A lot more thorough than just pipe tape this tru-blu product is solid especially for anode rods threading after removal for checking so that next time it is checked I won’t need an impact wrench lol. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched](https://www.desertcart.hk/products/14156074-tru-blu-31631-pipe-thread-sealant-fast-dry-ptfe-enriched) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-20*