--- product_id: 27680525 title: "Dow Corning 4 Composé isolant électrique 5,3 oz (150 g)" brand: "corning" price: "₪187" currency: ILS in_stock: true reviews_count: 11 category: "Corning" url: https://www.desertcart.co.il/products/27680525-dow-corning-4-composé-isolant-électrique-5-3-oz-150 store_origin: IL region: Israel --- # Moisture-proof dielectric sealant Multi-surface lubricant & conditioner Made in USA, trusted quality Dow Corning 4 Composé isolant électrique 5,3 oz (150 g) **Brand:** corning **Price:** ₪187 **Availability:** ✅ In Stock ## Summary > ⚡ Seal, lubricate, and protect like a pro—because your gear deserves the best. ## Quick Answers - **What is this?** Dow Corning 4 Composé isolant électrique 5,3 oz (150 g) by corning - **How much does it cost?** ₪187 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/27680525-dow-corning-4-composé-isolant-électrique-5-3-oz-150) ## Best For - corning enthusiasts ## Why This Product - Trusted corning brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smooth Operator:** Lubricates rubber seals and moving parts for effortless door and component movement. - • **Economical Usage:** Just a thin sheen needed—prevents waste while maximizing performance. - • **Pro-Grade Reliability:** Preferred by mechanics and engineers alike, backed by 4.7-star user satisfaction. - • **Versatile Application:** Ideal for automotive, marine, and aircraft use on cables, terminals, switches, and O-rings. - • **Ultimate Electrical Protection:** Seals and protects ignition systems, spark plugs, and wiring from moisture and corrosion. ## Overview Dow Corning 4 Composé isolant électrique is a premium silicone-based dielectric grease and sealant designed to protect and lubricate electrical connections, rubber seals, and moving parts in automotive, marine, and aircraft applications. Made in the USA, it offers moisture-proof protection, reduces wear, and enhances component longevity with minimal application. ## Description Greaselike material containing an inert silica filler in combination with selected polydimethyl silicone fluids. A moisture-proof seal for aircraft, automotive and marine ignition systems and spark plug connections, disconnection junctions in electrical wiring systems also in electrical assemblies and terminals. Used as a seal and lubricant for cable connectors, battery terminals, rubber door seals, switches, and rubber and plastic O-rings and as an assembly lubricant for various metal-onplastic and metal-on-rubber combinations. Review: Use on rubber seals and as a Dielectric - I used to use this normally at my previous job as an A&P Mechanic. This was mostly used on door seals and any other seals/moving parts. It lubricates and conditions the rubber (Both closed and open cell) and acts like a water repellent. I have since moved on to become an engineer so my direct involvement has gone down unfortunately. But I recent bought a CPO truck and just wanted to make sure it lasts for many years. I bought this tube and put it on all my door seals and even the wire tubes for the doors and the doors actually open and close much easier which is impressive as the truck only has 26,000 miles on it. I have since put this on the door and sun roof seals of my girlfriends 02 CRV and it again helped with the movement and cut down on some wind noise. **NOTE** If you do put this on door seals or any other parts, you DO NOT need a lot. Just enough to get a slight sheen, there is no need to cake it on. All you will do is waste it. Aside from rubber conditioning this is also a great dielectric grease when you need one. Review: Perfect toolbox resource - I use this a lot in my job so it's perfect to have my dedicated tube in the top drawer of my toolbox. I have no complaints. ## Features - Manus Products black adhesive sealant - Marble silicon Adhesive sealant - Black marble adhesive - Country Of Origin: United States ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.7 out of 5 stars 211 Reviews | ## Images ![Dow Corning 4 Composé isolant électrique 5,3 oz (150 g) - Image 1](https://m.media-amazon.com/images/I/817wHY32dsL.jpg) ## Questions & Answers **Q: Hey everyone. Does this eventually harden when applied or does it stay a liquid consistency?** A: In my experience over 20 years, I have found that Dow Corning 4 retains its original consistency (although I wouldnot describe it as having a liquid consistency). **Q: I'm looking for a conductive grease for the knife blades of disconnects. Any such thing? Something like they use in new disconnects.** A: I am a high voltage technician, This is routinely used to grease copper blade switches both in the pivot and the movable contact of 5kV and 15kV switches in indoor and outdoor applications. Although it is an insulating grease, the copper has excellent conductivity where the blades meet, not sure how that works but it's the industry standard. Another excellent switch grease is Mobil 28 **Q: Can this be used on Spark Plug wire sets thanks** A: Yes. It will help give you some extra protecting from water splashing underhood and affecting your spark plugs. Principally this would be in older cars, newer ones don't need it, #4 compound is FAMOUS. One tube can literally last you 10 years to a life time. When you have nuts and bolts that are outside if you put this on them. The bolt, all the threads, inside the nut, and then torque it down, it will come off after 20 years like the day you put it on. So if you can't afford stainless steel outside hardware, use zinc coated bolts and nuts and put this on it. **Q: Is this recommended for outdoor coax RG-6 connectors?** A: This isn't a sealing compound. It is a silicone "grease". Therefore it would wash-off in the outdoor weather. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Use on rubber seals and as a Dielectric *by J***E on October 8, 2015* I used to use this normally at my previous job as an A&P Mechanic. This was mostly used on door seals and any other seals/moving parts. It lubricates and conditions the rubber (Both closed and open cell) and acts like a water repellent. I have since moved on to become an engineer so my direct involvement has gone down unfortunately. But I recent bought a CPO truck and just wanted to make sure it lasts for many years. I bought this tube and put it on all my door seals and even the wire tubes for the doors and the doors actually open and close much easier which is impressive as the truck only has 26,000 miles on it. I have since put this on the door and sun roof seals of my girlfriends 02 CRV and it again helped with the movement and cut down on some wind noise. **NOTE** If you do put this on door seals or any other parts, you DO NOT need a lot. Just enough to get a slight sheen, there is no need to cake it on. All you will do is waste it. Aside from rubber conditioning this is also a great dielectric grease when you need one. ### ⭐⭐⭐⭐⭐ Perfect toolbox resource *by M***T on October 6, 2024* I use this a lot in my job so it's perfect to have my dedicated tube in the top drawer of my toolbox. I have no complaints. ### ⭐⭐⭐⭐ Good stuff! *by C***A on July 2, 2025* Works as it should but tube oozes product no matter how tightly capped. My previous tube was acquired when I worked for a commuter airline back in 1972 so I expect this one will severely out live me! ## Frequently Bought Together - Dow Corning 4 Electrical Insulating Compound 5.3 Oz (150 g) Tube - Dow Corning Molykote 55 Oring Grease 5.3oz --- ## 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.il/products/27680525-dow-corning-4-composé-isolant-électrique-5-3-oz-150](https://www.desertcart.co.il/products/27680525-dow-corning-4-composé-isolant-électrique-5-3-oz-150) --- *Product available on Desertcart Israel* *Store origin: IL* *Last updated: 2026-07-07*