---
product_id: 13737280
title: "38655 515 Gasket Maker Flange Sealant Tube - 50 ml"
brand: "loctite"
price: "268 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Loctite"
url: https://www.desertcart.dk/products/13737280-38655-515-gasket-maker-flange-sealant-tube-50-ml
store_origin: DK
region: Denmark
---

# Water resistant & gap filling up to 0.25 mm 30 min fixture time 6 N/mm² tensile shear strength 38655 515 Gasket Maker Flange Sealant Tube - 50 ml

**Brand:** loctite
**Price:** 268 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal like a pro, leak like never before!

## Quick Answers

- **What is this?** 38655 515 Gasket Maker Flange Sealant Tube - 50 ml by loctite
- **How much does it cost?** 268 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/13737280-38655-515-gasket-maker-flange-sealant-tube-50-ml)

## Best For

- loctite enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Setup:** Sets in just 30 minutes to keep your project moving
- • **Gap-Filling Power:** Seals gaps up to 0.25 mm, no pre-cut gaskets needed
- • **Precision Flexibility:** Flexes with moving flanges for lasting seals
- • **OEM-Approved Reliability:** Trusted by manufacturers and race teams alike
- • **Universal Metal Compatibility:** Perfect for aluminum, stainless steel, and more

## Overview

Loctite 515 is a purple, methacrylate-based flange sealant designed for rigid machined metal flanges with gaps up to 0.25 mm. It offers medium strength (6 N/mm² tensile shear), cures anaerobically in 30 minutes, and is OEM-approved for automotive use. Ideal for replacing traditional gaskets on water pumps, transmission pans, and more, it provides a flexible, water-resistant seal trusted by professionals and race teams worldwide.

## Description

LOCTITE 515 Gasket Maker & Flange Sealant is a flexible gasketing material for use on rigid machined flanges with less than 0.015" (0.381 mm) gap. OEM approved - use where OES specify 515 or "anaerobic" gasket (cures in absence of air). Eliminates preformed, pre-cut, paper, rubber, and cork gaskets. Flexes with flanges that move in service.Gasketing product for machined metal flanges. Medium strength. 30 min fixture time. Can also fill gaps up to 0.25 mm.LOCTITE 515 is a medium strength (6 N/mm² tensile shear strength), medium cure speed, methacrylate-based industrial gasketing product designed for machined, rigid metal flanges. The product, which cures anaerobically, is suitable for gaps up to 0.25 mm. It is used typically as a form-in-place product for pumps, thermostats, compressors, transmission housings and axle covers. Ideal for machined metal components.LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Engines of nearly every professional race car are assembled and maintained with LOCTITE brand adhesives, sealants, gasket makers, and coatings. Whether gasoline or diesel, from bolts and gaskets to cooling lines and core plugs, Henkel products are used to seal, secure, and repair vehicle components.

Review: stopped the leak - After doing quite a lot of research I decided to give this a try. I have an old Speedaire air compressor that had a leak from the valve plate gasket for which a replacement is no longer available. The gasket is subject to high compression and excessive heat. After attempting to make a replacement from gasket material (which nearly worked but still leaked minutely) I assembled the compressor using this product and it has performed flawlessly: no leaks. It is critical that the mating surfaces are extremely clean before applying. It does set up to a thick gel consistency but it does not harden which many other products do. A bit more costly than many other sealants but worth it.
Review: Excellent product at an excellent price!!! - Been using the stuff for decades on snowmobile engines, and other applications. The best of the best. Great price here by far!!!

## Features

- Flexible gasketing material for use on rigid machined flanges
- OEM approved
- Eliminates preformed, pre-cut, paper, rubber and cork gaskets
- Flexes with flanges that move in service
- Typical applications include water pumps, thermostat housings, transmission pans, transmission case covers, transaxle casings, O-ring replacement
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002KKTTA |
| Best Sellers Rank | #23,938 in Automotive ( See Top 100 in Automotive ) #30 in Gasket Sealers |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | Purple |
| Compatible Material | Aluminum, Metal, Stainless Steel |
| Customer Reviews | 4.6 out of 5 stars 466 Reviews |
| Global Trade Identification Number | 00079340386556 |
| Included Components | (1) LOCTITE 515 Gasket Maker & Flange Sealant for Automotive | Purple, 50 ml |
| Item Dimensions | 8 x 3.81 x 1.2 inches |
| Item Form | Gel |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 0.06 Kilograms |
| Item dimensions L x W x H | 8 x 3.81 x 1.2 inches |
| Manufacturer | Loctite |
| Material | Flange Sealant Gasket Maker |
| Material Type | Flange Sealant Gasket Maker |
| Style | Music |
| Style Name | Music |
| Surface Recommendation | Miscellaneous |
| UPC | 826732886886 079340386556 777714719855 |
| Unit Count | 1.6907 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Loctite
- **Item Weight:** 0.06 Kilograms
- **Item dimensions L x W x H:** 8 x 3.81 x 1.2 inches
- **Material:** Flange Sealant Gasket Maker
- **Style:** Music

## Images

![38655 515 Gasket Maker Flange Sealant Tube - 50 ml - Image 1](https://m.media-amazon.com/images/I/7123yEULTNL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it work on plastic engine parts? The cylinder on my chainsaw mounts to plastic.**
A: It does not work on plastic. The product is activated by metal ions, so it fully  cures only in presence of metal.

**Q: will this work for diesel exhaust manifold block off plate with high temps?**
A: This product can only resist up to 300-350 degrees F, not recommended for exhaust manifolds. The metallic gasket is the only thing that will create a proper seal for those temps of a diesel engine.

**Q: Can I use 515 to seal around the leak for automatic transmission fluid around the dipstick tube as it connects to the chevy automatic transmission?**
A: 515 is primarily an anaerobic, used to prevent air leakage between torqued surfaces. I have used it on gear cases and power equipment transmissions with success.  It may work on your dipstick, if you can secure it so it doesn't move around. Of all things JB weld may be a better repair.

**Q: What is the shelf life**
A: There is no shelf listed on tube I have used it well past  year on Engines case halves

## Customer Reviews

### ⭐⭐⭐⭐⭐ stopped the leak
*by D***Y on June 17, 2019*

After doing quite a lot of research I decided to give this a try. I have an old Speedaire air compressor that had a leak from the valve plate gasket for which a replacement is no longer available. The gasket is subject to high compression and excessive heat. After attempting to make a replacement from gasket material (which nearly worked but still leaked minutely) I assembled the compressor using this product and it has performed flawlessly: no leaks. It is critical that the mating surfaces are extremely clean before applying. It does set up to a thick gel consistency but it does not harden which many other products do. A bit more costly than many other sealants but worth it.

### ⭐⭐⭐⭐⭐ Excellent product at an excellent price!!!
*by A***R on April 13, 2025*

Been using the stuff for decades on snowmobile engines, and other applications. The best of the best. Great price here by far!!!

### ⭐⭐⭐⭐⭐ Very tacky
*by D***T on January 20, 2026*

Works good

## Frequently Bought Together

- Loctite 38655 515 Gasket Maker Flange Sealant Tube - 50 ml
- Loctite 37509 Klean 'N Prime Anaerobic Activator Aerosol Can - 4.5 oz.
- LOCTITE 518 Automotive Anaerobic Gasket Maker & Flange Sealant - Sensor-Safe, Low Oder, Non-Corrosive - 50 ml, 1 Pack

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-26*