--- product_id: 7377403 title: "RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz" brand: "rectorseal" price: "฿1392" currency: THB in_stock: true category: "Rectorseal" url: https://www.desertcart.co.th/products/7377403-rectorseal-no-5-25631-pipe-thread-sealant-lubricates-and-protects store_origin: TH region: Thailand --- # Slow-drying for perfect seal Lead-free, safe for potable water Soft-setting, easy thread breakout RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz **Brand:** rectorseal **Price:** ฿1392 **Availability:** ✅ In Stock ## Summary > 🔧 Seal Smart, Break Easy — The Pro’s Choice for Threaded Perfection ## Quick Answers - **What is this?** RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz by rectorseal - **How much does it cost?** ฿1392 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/7377403-rectorseal-no-5-25631-pipe-thread-sealant-lubricates-and-protects) ## 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:** RectorSeal’s industry-leading reputation powers HVAC, plumbing, electrical & construction trades with reliable performance. - • **Ready When You Are:** Immediate service for natural gas & water lines up to 2" and 100 psi—no waiting, no downtime. - • **Health-Conscious Choice:** Lead-free and metal-free composition keeps your plumbing safe and compliant with potable water standards. - • **Universal Compatibility:** Works flawlessly on galvanized steel, brass, copper, aluminum, stainless steel, PVC & more (just skip ABS/CPVC). - • **Precision Seal, Zero Stress:** Soft-setting formula lubricates & protects threads without hardening, ensuring easy disassembly and no damage. ## Overview RectorSeal No. 5 is a 4 oz, non-hardening, slow-drying pipe thread sealant that lubricates and protects threaded connections. Its soft-setting, lead-free formula ensures easy disassembly without thread damage and is compatible with a wide range of pipe materials. Ideal for natural gas and water lines up to 2" and 100 psi, it allows immediate system use and is trusted by professionals across HVAC, plumbing, and construction industries. ## Description Product Description RectorSeal No. 5 is a non-hardening, slow-drying thread sealant made from special inert fillers dispersed in an oleoresinous base to facilitate its application to threaded pipe connections. Our pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings. RectorSeal No. 5 pipe dope thread sealant lubricates and protects pipe threads. Lead free and contains no metal. Permits easy break out with no damage to threads. For pipe made of galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, reinforced fiberglass, and PVC. DO NOT USE ON ABS OR CPVC. For natural gas and water lines up to 2" and pressure up to 100 psi, the piping system may be placed into immediate service; other services are recommended 24 hours after application. 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 Rector seal 4-Ounce No. 5 Pipe Thread Sealant 25631.This is a Hazmat non-returnable item ## Features - APPLICATION: RectorSeal No. 5 is a non-hardening, slow-drying thread sealant made from special inert fillers dispersed in an oleoresinous base to facilitate its application to threaded pipe connections - SOFT SETTING: Our pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings and will not dry out in the container - POTABLE WATER SEALANT: RectorSeal No. 5 pipe dope thread sealant lubricates and protects pipe threads; lead free and contains no metal; permits easy break out with no damage to threads - PIPE COMPATIBILITY: for pipe made of galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, reinforced fiberglass, and pvc. do not use on abs or cpvc; for natural gas and water lines up to 2" and pressure up to 100 psi, the piping system may be placed into immediate service; other services are recommended 24 hours after application - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001P5F9X2 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #14,074 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #27 in Industrial Thread Sealants | | Color | Yellow | | Customer Reviews | 4.7 4.7 out of 5 stars (759) | | Date First Available | September 10, 2006 | | Included Components | Unit^Instruction Guide | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 7.3 ounces | | Item model number | 25631 | | Manufacturer | Rectorseal | | Material | Plastic | | Measurement System | Metric | | Number Of Pieces | 1 | | Number of Handles | 1 | | Part Number | 25631 | | Product Dimensions | 3 x 3 x 3.3 inches | | Size | 4 fl. oz. | | Special Features | special_feature | | Style | Compact | | Thickness | 1 Inches | | Usage | specific_uses_for_product | | Warranty Description | No | ## Product Details - **Material:** Plastic - **Brand:** Rectorseal - **Style:** Compact - **Item Weight:** 0.46 Pounds - **Item dimensions L x W x H:** 3 x 3 x 3.3 inches ## Images ![RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz - Image 1](https://m.media-amazon.com/images/I/611p5A7KsPL.jpg) ![RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz - Image 2](https://m.media-amazon.com/images/I/51wLkNQG4ZL.jpg) ![RectorSeal No. 5 25631 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout, Lead Free & Contains No Other Metals, 4 oz - Image 3](https://m.media-amazon.com/images/I/81OhRuo-nfL.jpg) ## Questions & Answers **Q: Can it be used for LP gas?** A: I bought it for my new Natural Gas oven/range, You may want to read the below link :copy and paste below linkhttp://ows.rectorseal.com/product-data/RectorSeal-T-Plus-2/dstplus2.htm *** I see this product may not be what you want for LP GAS according to Rectorseal, you my be better off using their product called: Copy and paste below into Amazon's search box: Rectorseal 23631 1/4 Pint Brush Top T Plus 2 Pipe Thread Sealant **Q: Can you use this on pvc cleanout adapter threads?** A: Yes, you can. Actually, Rectorseal would probably be one of the BEST products to use in this situation. The product description states that it can be used on PVC and CPVC. Rectorseal is a tan-colored, thick paste that acts as a lubricant and sealant on threaded connections. It is NON-hardening, so it STAYS as a paste. Since the PVC clean-out is a threaded connection, it should work just fine, without hardening or deforming your PVC pipe. **Q: The picture and the description both say 4 oz (1/4 pint). the technical details say 8 ounces. which is it?** A: It is 4 oz as described on the bottle.I do apologize for any confusion.Thank you! **Q: Can we use for natural gas black pipe fitting or its only for brass fitting like valve etc. thanks** A: Use it on black iron or galgalvanized. ## Frequently Bought Together - Rectorseal 25631 4-Ounce No. 5 Pipe Thread Sealant , Yellow , 4 fl. oz. - 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 017065 Gas Line PTFE Thread Seal Tape --- ## 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.co.th/products/7377403-rectorseal-no-5-25631-pipe-thread-sealant-lubricates-and-protects](https://www.desertcart.co.th/products/7377403-rectorseal-no-5-25631-pipe-thread-sealant-lubricates-and-protects) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-07-06*