---
product_id: 255417984
title: "Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack"
brand: "permatex"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.com.cy/products/255417984-permatex-27037-optimum-black-gasket-maker-3-35-oz-1
store_origin: CY
region: Cyprus
---

# 60% more flexible with max oil resistance Temp range -65°F to 500°F 15% stronger than Ultra Black Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack

**Brand:** permatex
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Seal like a pro, stay leak-free, and never miss a beat!

## Quick Answers

- **What is this?** Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack by permatex
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/255417984-permatex-27037-optimum-black-gasket-maker-3-35-oz-1)

## 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

- • **Sensor-Safe & Low Odor:** Safe for modern engines with sensitive sensors and no overpowering smell
- • **Complete Ready-to-Use Kit:** Includes 2 precision nozzles for effortless, mess-free application
- • **Oil-Resistant Flexibility:** 60% more flexible to maintain perfect seals under oil exposure
- • **Extreme Temperature Resilience:** Operates flawlessly from -65°F to 500°F, handling the heat and cold
- • **Unmatched Strength & Durability:** 15% stronger than Ultra Black for long-lasting seals

## Overview

Permatex 27037 Optimum Black Gasket Maker is a premium silicone sealant engineered for modern automotive assemblies requiring superior oil resistance and flexibility. It outperforms standard Ultra Black with 15% greater strength and 60% more flexibility, while safely operating across extreme temperatures (-65°F to 500°F). Sensor-safe and low odor, it’s perfect for valve covers, oil pans, and more, ensuring durable, leak-proof seals in critical engine components.

## Description

Permatex optimum black is designed for gasket making in newer lightweight and premium components where maximum oil resistance is required, specifically within assemblies where two unlike materials meet. Optimum black is ideal for use with valve covers, oil pans, oil pumps, intake manifold end seals, timing gear covers and differential covers.

Review: Really good product - Really good product and easy to work with. It applies nicely, forms a good seal and does exactly what you'd expect from a gasket maker. The black finish is neat and it seems to be good quality compared to some of the cheaper alternatives I've used.
Review: Good sealant. Used it before and it holds up very well. - I used this to plump up the sunroof gasket on my Jaguar XF's glass roof seal. It doesn't leak water, but wind noise has been annoying since day one... I finally ran a thin bead of this around the outside of the seal, where it meets with the roof and gently thinned it with my finger. No more wind noise, and the goo stays attached to the existing base gasket. Problem solved. I've used this on other things in the past as well, gas tank neck seal for hedge trimmer, anybody who's had to work on those tanks know how sloppy they are these days... little dab of this stuff, no more leaks! It doesn't stink, and it cleans up well as long as you're quick about cleaning up. I have no complaints, it does exactly what it needs to do!

## Features

- Sensor-safe, low odor, and non-corrosive
- Meets performance Specs of OE silicone gaskets. Resistant to Auto & shop fluids and vibration. 15% stronger than Ultra Black.
- Retains highest flexibility with maximum oil resistance through use of a patented adhesion system. 60% more flexible than Ultra Black
- Temperature range: -65 DegreeF to 500 DegreeF (-54 DegreeC to 260 DegreeC) intermittent
- Includes 2 nozzles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072MRCG8W |
| Best Sellers Rank | #27,981 in Automotive ( See Top 100 in Automotive ) #135 in Automotive Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Optimum Black |
| Compatible Material | Rubber |
| Customer Reviews | 4.6 out of 5 stars 1,769 Reviews |
| Global Trade Identification Number | 00686226270375 |
| Included Components | Gasket Maker |
| Item Dimensions | 32 x 97 x 203 millimeters |
| Item Form | Paste |
| Item Type Name | Optimum Black Gasket Maker 3.35 oz |
| Item Weight | 3 Ounces |
| Item dimensions L x W x H | 32 x 97 x 203 millimeters |
| Item weight | 3 Ounces |
| Manufacturer | Permatex |
| Material | Silicone |
| Material Type | Silicone |
| Model | 27037 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 27037 |
| Style | Pack of 1 |
| Style Name | Pack of 1 |
| Surface Recommendation | Miscellaneous |
| UPC | 686226270375 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |

## Product Details

- **Brand:** Permatex
- **Item dimensions L x W x H:** 32 x 97 x 203 millimeters
- **Item weight:** 3 Ounces
- **Material:** Silicone
- **Style:** Pack of 1

## Images

![Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack - Image 1](https://m.media-amazon.com/images/I/712ZFo2pnCL.jpg)
![Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack - Image 2](https://m.media-amazon.com/images/I/817eShEYzKL.jpg)
![Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack - Image 3](https://m.media-amazon.com/images/I/61OgWKKbqpL.jpg)
![Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack - Image 4](https://m.media-amazon.com/images/I/61lzsl+RTYL.jpg)
![Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack - Image 5](https://m.media-amazon.com/images/I/61OAoZZeaFL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really good product
*by S***N on 29 September 2026*

Really good product and easy to work with. It applies nicely, forms a good seal and does exactly what you'd expect from a gasket maker. The black finish is neat and it seems to be good quality compared to some of the cheaper alternatives I've used.

### ⭐⭐⭐⭐⭐ Good sealant. Used it before and it holds up very well.
*by K***S on 30 September 2026*

I used this to plump up the sunroof gasket on my Jaguar XF's glass roof seal. It doesn't leak water, but wind noise has been annoying since day one... I finally ran a thin bead of this around the outside of the seal, where it meets with the roof and gently thinned it with my finger. No more wind noise, and the goo stays attached to the existing base gasket. Problem solved. I've used this on other things in the past as well, gas tank neck seal for hedge trimmer, anybody who's had to work on those tanks know how sloppy they are these days... little dab of this stuff, no more leaks! It doesn't stink, and it cleans up well as long as you're quick about cleaning up. I have no complaints, it does exactly what it needs to do!

### ⭐⭐⭐⭐⭐ Great stuff
*by A***R on 25 July 2024*

Great stuff, works exactly as advertised. Easy to use, good seal.

## Frequently Bought Together

- Permatex 27037 Optimum Black Gasket Maker, 3 oz
- Permatex 27036 Optimum Grey Gasket Maker 3 oz
- Permatex 27038 Optimum Red High Temperature Gasket Maker, 3 oz

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-11-09*