---
product_id: 12858525
title: "Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray"
brand: "permatex"
price: "¥3889"
currency: JPY
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.jp/products/12858525-permatex-81180-automatic-transmission-rtv-sealant-3-oz-tube-gray
store_origin: JP
region: Japan
---

# Thermal cycling resistant Flexible, crack-proof sealant Superior oil & chemical resistance Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray

**Brand:** permatex
**Price:** ¥3889
**Availability:** ✅ In Stock

## Summary

> ⚙️ Seal the deal with confidence—no leaks, no limits!

## Quick Answers

- **What is this?** Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray by permatex
- **How much does it cost?** ¥3889 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/12858525-permatex-81180-automatic-transmission-rtv-sealant-3-oz-tube-gray)

## Best For

- permatex enthusiasts

## Why This Product

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

## Key Features

- • **Safe & User-Friendly:** Sensor-safe, non-corrosive, non-flammable, low odor for hassle-free application
- • **OEM-Grade Reliability:** Meets stringent manufacturer standards for automatic transmission fluids
- • **Versatile Application:** Perfect for transmission pans, case halves, and inside covers—your go-to gasket maker
- • **Flexible & Durable Seal:** Maintains adhesion and flexibility to prevent leaks under pressure
- • **Endures Extreme Conditions:** Formulated to resist aging, weathering, and thermal cycling without hardening or cracking

## Overview

Permatex 81180 Automatic Transmission RTV Sealant is a high-performance, gray silicone sealant designed specifically for automatic transmissions. It resists harsh detergents and additives, withstands thermal cycling without cracking or shrinking, and offers superior adhesion and oil resistance. Sensor-safe and non-toxic, it’s ideal for creating durable, flexible gaskets on transmission pans and covers, ensuring leak-proof performance trusted by professionals.

## Description

Permatex Automatic Transmission RTV Sealant is specially designed to withstand the harsh detergents and friction modiﬁers found in automatic transmission ﬂuid that break down normal RTV silicones. This sealant has been formulated to meet the stringent Original Equipment Manufacturer (OEM) requirements and to provide a superior gasket maker that resists aging, weathering and thermal cycling without hardening, shrinking or cracking. Benefits include improved transmission oil resistance and good adhesion while retaining flexibility. Sensor-safe, non-corrosive, non-flammable, non-toxic, and low odor, this Automatic Transmission RTV Sealant can be used as a gasket maker or dressing.

Review: Works as expected! - Used this sealant for my transmission pan and it did the job perfectly. It sealed up tight with no leaks and was easy to apply. It takes a little time to cure, but once it sets, it holds strong. Great product to keep on hand for car repairs.
Review: Great product - Works perfect for cvt flanges

## Features

- Specially designed to withstand the harsh detergents and additives found in automatic transmission ﬂuid
- Formulated to resist aging, weathering and thermal cycling without hardening, shrinking or cracking
- Improves transmission oil resistance and provides good adhesion while retaining flexibility
- Sensor-safe, non-corrosive, non-flammable, non-toxic, and low odor sealant can be used as a gasket maker or dressing
- Suggested Applications: Automatic transmission pans, case halves and inside covers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0018PSATO |
| Best Sellers Rank | #18,267 in Automotive ( See Top 100 in Automotive ) #26 in Gasket Sealers #894 in Oils & Fluids |
| Brand | Permatex |
| Color | Gray |
| Customer Reviews | 4.7 4.7 out of 5 stars (708) |
| Date First Available | July 7, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 3 ounces |
| Item dimensions L x W x H | 8.9 x 3.9 x 1.7 inches |
| Item model number | 81180 |
| Manufacturer | Permatex |
| Manufacturer Part Number | 81180 |
| Material | Silicone |
| Model | Sealant |
| Number of Items | 1 |
| OEM Part Number | 81180 |
| Product Dimensions | 8.9 x 3.9 x 1.7 inches |
| Style | Thermal |
| Surface Recommendation | Miscellaneous |
| UPC | 068622681106 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Permatex
- **Item Weight:** 85 Grams
- **Item dimensions L x W x H:** 8.9 x 3.9 x 1.7 inches
- **Material:** Silicone
- **Style:** Thermal

## Images

![Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray - Image 1](https://m.media-amazon.com/images/I/81pNkEGrF3L.jpg)
![Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray - Image 2](https://m.media-amazon.com/images/I/81fNrshIYRL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: How long is the cure time for this sealent?**
A: The back of package says to apply a 1/16-1/4 bead and finger tighten bolts until it starts to squeeze out then let dry for one hour. After that torque to spec.. Allow 24 hours to fully cure before filling with fluids and returning to service (allow more time to cure in cold or very dry conditions). I followed these directions and it worked perfectly.

**Q: Can this be used on a subaru cvt transmission oil pan?**
A: I used it on a Kia Transmission pan after I changed the transmission filter. That was about 30,000 miles ago. I also used it on a Dodge Grand Caravan Transmission pan around 10,000 miles ago and have had no leaks. I cleaned both surfaces lightly scraping the factory gasket off and then used brake cleaner to clean both surfaces, then put a bead on the transmission pan and let that just sit for 10 minutes then installed the pan, torqued the bolts close to specification. Be careful not to over tighten and snap a bolt off. You can get them out but it sets you back awhile. After I install the pan. I pull the transmission dipstick and pull the drain plug out and let it sit 24 hours to cure in 55 degree or above air. Refill your fluid to the factory level and you should be good until your next transmission service for a filter change.

**Q: Would i be correct to assume this is what i want for a transfer case that calls for atf instead of gear oil (np 241c)?**
A: No this is not fluid to add to the transfer case. This is a gasket maker.
ATF stands for automatic transmission fluid

**Q: Can this be used to seal threadson an automatic transmission pan drain plug?**
A: I used this product as the transmission pan gasket, unsure if it could be used on a drain plug

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as expected!
*by R***N on October 16, 2025*

Used this sealant for my transmission pan and it did the job perfectly. It sealed up tight with no leaks and was easy to apply. It takes a little time to cure, but once it sets, it holds strong. Great product to keep on hand for car repairs.

### ⭐⭐⭐⭐⭐ Great product
*by A***E on January 30, 2026*

Works perfect for cvt flanges

### ⭐⭐⭐⭐⭐ Great alternative to gaskets
*by J***. on December 22, 2025*

Everything i use this product i have great results. Fixed my leak on my 2013 2.4 honda accord coupe with cvt. I battled leaking pan gaskets on 3 separate occasions and was frustrated because the fluid alone to redo the job is over 50$ this stuff solved my problem wish I had of tried it sooner .Set up in the cold and in 24hrs was back up and running

## Frequently Bought Together

- Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray
- Permatex 85080 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Flex And Oil Resistant Applications 9.5 oz
- Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz (Packaging May Vary)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-25*