---
product_id: 50455060
title: "Hylomar F/SL303HY/040M Clear Instant Gasket 40 ml"
brand: "hylomar"
price: "€ 16.19"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/50455060-hylomar-f-sl303hy-040m-clear-instant-gasket-40-ml
store_origin: IE
region: Ireland
---

# Resistant to automotive fluids Operates up to 250°C Fills gaps up to 4mm Hylomar F/SL303HY/040M Clear Instant Gasket 40 ml

**Brand:** hylomar
**Price:** € 16.19
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal with Hylomar – where flexibility meets industrial strength!

## Quick Answers

- **What is this?** Hylomar F/SL303HY/040M Clear Instant Gasket 40 ml by hylomar
- **How much does it cost?** € 16.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/50455060-hylomar-f-sl303hy-040m-clear-instant-gasket-40-ml)

## Best For

- hylomar enthusiasts

## Why This Product

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

## Key Features

- • **Gap-Filling Precision:** Seamlessly fills gaps up to 4mm, ensuring a perfect fit every time.
- • **Multi-Surface Adhesion:** Bonds effortlessly to glass, metal, wood, and plastics for versatile engineering use.
- • **Permanently Flexible Seal:** Stay leak-proof with a gasket that never hardens or cracks, even under stress.
- • **Universal Fluid Resistance:** Defies oils, fuels, water, and brine—your all-weather, all-fluid sealing solution.
- • **High-Temperature Performance:** Handles extreme heat up to 250°C, perfect for demanding automotive and aerospace applications.

## Overview

Hylomar F/SL303HY/040M is a 40ml clear instant gasket compound engineered for professional-grade sealing. Its polyester urethane base ensures a permanently flexible, non-setting seal that withstands temperatures up to 250°C and resists a broad spectrum of automotive and industrial fluids. Ideal for automotive, aerospace, defense, and general engineering, it fills gaps up to 4mm and adheres to multiple surfaces, delivering reliable, high-performance sealing where it counts.

## Description

A new clear instant gasket compound from the manufacturers of Hylomar Universal Blue. Key Features:Permanently flexibleResistant to most automotive fluids Operating temperature up to 250oC Fills gaps up to 4mm Engineering grade Good adhesion to glass, metal, wood and plastics

## Features

- Clear instant gasket - 40ml
- Universal Blue is the world's leading non-setting gasket and jointing compound
- Polyester urethane based sealant that is non-setting and non-hardening even at high temperatures
- Used in the automotive, aerospace, defence and general engineering industries when a non-setting flexible seal is required
- Resistant to a wide range of fluids including all industrial fuels, oils, water and brine etc.
- Clear instant gasket - 40ml
- Universal Blue is the world's leading non-setting gasket and jointing compound
- Used in the automotive, aerospace, defence and general engineering industries when a non-setting flexible seal is required
- Polyester urethane based sealant that is non-setting and non-hardening even at high temperatures
- Resistant to a wide range of fluids including all industrial fuels, oils, water and brine etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | hylomar |
| Brand | Hylomar |
| Package Dimensions | 13 x 3.8 x 2.8 cm; 40 g |
| Item model number | F/SL303HY/040M |
| Manufacturer part number | F/SL303HY/040M |
| Item Weight | 40 g |

## Images

![Hylomar F/SL303HY/040M Clear Instant Gasket 40 ml - Image 1](https://m.media-amazon.com/images/I/71MoaNiUdfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great product used it for years in my profession as a motor mechanic
  

*by D***Y on Reviewed in the United Kingdom on 12 June 2022*

Great product,clear so once job complete ,wipe down and everything looks like new.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Seals great
  

*by J***  on Reviewed in the United Kingdom on 18 September 2023*

Works on me Moggi minor from 1965 so can’t see why it won’t work on modern clunker

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    instant gasket
  

*by J***K on Reviewed in the United Kingdom on 18 October 2018*

good product

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/50455060-hylomar-f-sl303hy-040m-clear-instant-gasket-40-ml](https://www.desertcart.ie/products/50455060-hylomar-f-sl303hy-040m-clear-instant-gasket-40-ml)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-04*