---
product_id: 240602532
title: "Permatex 81725-12PK Sensor-Safe Ultra Blue RTV Silicone Gasket Maker, 13 oz. (Pack of 12)"
brand: "permatex"
price: "374 Lei"
currency: RON
in_stock: false
reviews_count: 5
url: https://www.desertcart.ro/products/240602532-permatex-81725-12pk-sensor-safe-ultra-blue-rtv-silicone-gasket
store_origin: RO
region: Romania
---

# -65°F to 500°F temperature range 8x more flexible than cork gaskets 3x more oil resistant than standard silicones Permatex 81725-12PK Sensor-Safe Ultra Blue RTV Silicone Gasket Maker, 13 oz. (Pack of 12)

**Brand:** permatex
**Price:** 374 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Seal smarter, not harder — the pro’s choice for flawless gaskets!

## Quick Answers

- **What is this?** Permatex 81725-12PK Sensor-Safe Ultra Blue RTV Silicone Gasket Maker, 13 oz. (Pack of 12) by permatex
- **How much does it cost?** 374 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/240602532-permatex-81725-12pk-sensor-safe-ultra-blue-rtv-silicone-gasket)

## 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

- • **Bulk Pack Convenience:** Pack of 12 tubes keeps your workshop stocked and ready for any job.
- • **Unmatched Flexibility:** Eight times more flexible than traditional cork/composite gaskets for superior sealing.
- • **Extreme Oil Resistance:** Three times more resistant to oils, ensuring long-lasting durability under harsh conditions.
- • **Sensor-Safe & Low Odor:** Protect sensitive engine sensors with non-corrosive, low-odor formula.
- • **Wide Temperature Tolerance:** Performs flawlessly from freezing cold to extreme heat (-65°F to 500°F intermittent).

## Overview

Permatex 81725-12PK Ultra Blue RTV Silicone Gasket Maker is a sensor-safe, low-odor, and non-corrosive sealant designed for automotive applications. It offers eight times the flexibility of cork gaskets and three times the oil resistance of conventional silicones, withstanding temperatures from -65°F to 500°F. Sold in a convenient 12-pack, it’s ideal for valve covers, oil pans, and other critical engine components, delivering superior durability and torque retention trusted by professionals.

## Description

Permatex Ultra Blue Multipurpose RTV Silicone Gasket Makers are sensor-safe, low odor and non-corrosive, with outstanding oil resistance and joint movement values. Developed to meet today's technology changes, Permatex ultra silicones are eight times more flexible than cork/composite gaskets and three times more oil resistant than conventional silicones. With a temperature range of -65 degrees fahrenheit to 500 degrees fahrenheit intermittent, these OEM specified gaskets resist auto and shop fluids, as well as vibration. These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties. Permatex always has the right gasket maker for your application.

Review: 何時も愛用しています。
Review: 50 yr mastertech here . ultra blue is my go to. . great stuff

## Features

- Causes serious eye irritation.
- May cause an allergic skin reaction.
- Suspected of causing cancer.
- Sold in case packs of 12
- Eight times more flexible than cork/composite gaskets
- Three times more oil resistant than conventional silicones
- Sensor-safe, low odor and non-corrosive
- Suggested Applications: Valve covers, oil pans, timing covers, transmission pans, differential covers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001RETU6I |
| Best Sellers Rank | 355,073 in Automotive ( See Top 100 in Automotive ) |
| Brand | Permatex |
| Customer Reviews | 4.8 4.8 out of 5 stars (242) |
| Date First Available | 3 Feb. 2009 |
| Item Weight | 368 g |
| Item model number | 81725-12PK |
| Manufacturer | Permatex |
| Manufacturer part number | 81725-12PK |
| Package Dimensions | 24.9 x 21.4 x 16 cm; 368.54 g |

## Product Details

- **Brand:** Permatex
- **Colour:** Blue
- **Item form:** Liquid
- **Item weight:** 13 Ounces
- **Liquid volume:** 265 Millilitres

## Images

![Permatex 81725-12PK Sensor-Safe Ultra Blue RTV Silicone Gasket Maker, 13 oz. (Pack of 12) - Image 1](https://m.media-amazon.com/images/I/81EynzpdOiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by W***A on 30 March 2025*

何時も愛用しています。

### ⭐⭐⭐⭐⭐ Review
*by D***S on 7 October 2025*

50 yr mastertech here . ultra blue is my go to. . great stuff

### ⭐⭐⭐⭐⭐ Review
*by J***E on 19 January 2026*

ok

## Frequently Bought Together

- Permatex 81725-12PK Sensor-Safe Ultra Blue RTV Silicone Gasket Maker, 13 oz. (Pack of 12)
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**Shop now:** [https://www.desertcart.ro/products/240602532-permatex-81725-12pk-sensor-safe-ultra-blue-rtv-silicone-gasket](https://www.desertcart.ro/products/240602532-permatex-81725-12pk-sensor-safe-ultra-blue-rtv-silicone-gasket)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-23*