---
product_id: 255417984
title: "Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack"
brand: "permatex"
price: "R334"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.co.za/products/255417984-permatex-27037-optimum-black-gasket-maker-3-35-oz-1
store_origin: ZA
region: South Africa
---

# Sensor-safe & non-corrosive 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:** R334
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal like a pro, perform like a boss.

## Quick Answers

- **What is this?** Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack by permatex
- **How much does it cost?** R334 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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

- • **Complete Ready-to-Use Kit:** Includes 2 precision nozzles for easy, mess-free application on all gasket surfaces.
- • **Extreme Temperature Resilience:** Operates flawlessly from -65°F to 500°F, perfect for high-heat engine environments.
- • **Sensor-Safe & Low Odor Formula:** Safe for sensitive components and comfortable to apply without harsh fumes.
- • **Unmatched Strength & Durability:** 15% stronger than Ultra Black for a seal that lasts through the toughest conditions.
- • **Maximum Flexibility & Oil Resistance:** 60% more flexible than Ultra Black, maintaining a perfect seal even with vibration and oil exposure.

## 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 a wide temperature range (-65°F to 500°F). Sensor-safe and low odor, it’s ideal for valve covers, oil pans, and other critical engine components, ensuring a durable, vibration-resistant seal every time.

## 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: Excellent Product - Excellent and supreme quality product for sealant.
Review: Great stuff - Great stuff, works exactly as advertised. Easy to use, good seal.

## 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 | #14,754 in Automotive ( See Top 100 in Automotive ) #69 in Automotive Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Optimum Black |
| Compatible Material | Rubber |
| Customer Reviews | 4.6 out of 5 stars 1,592 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 | 0.11 Kilograms |
| Item dimensions L x W x H | 32 x 97 x 203 millimeters |
| Item weight | 0.11 Kilograms |
| Manufacturer | Permatex |
| Material | Silicone |
| Material Type | Silicone |
| Model | 27037 |
| Number of Items | 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
- **Material:** Silicone
- **Style:** Pack of 1
- **Water resistance level:** Water Resistant

## 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 **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Product
*by G***S on 4 October 2025*

Excellent and supreme quality product for sealant.

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

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

### ⭐⭐⭐⭐⭐ Excellent
*by L***E on 1 May 2025*

Excellent Used to install a crankcase/crankshaft oil seal on a Lycoming engine

## 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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**Shop now:** [https://www.desertcart.co.za/products/255417984-permatex-27037-optimum-black-gasket-maker-3-35-oz-1](https://www.desertcart.co.za/products/255417984-permatex-27037-optimum-black-gasket-maker-3-35-oz-1)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-06-18*