---
product_id: 294031248
title: "SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax"
brand: "loctite"
price: "₩239990"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/294031248-si-5900-silicone-based-flange-sealant-high-resistance-to-oil
store_origin: KR
region: South Korea
---

# Temp range -65°F to 500°F Multi-substrate adhesion High oil resistance SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax

**Brand:** loctite
**Price:** ₩239990
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal like a pro, last like a legend.

## Quick Answers

- **What is this?** SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax by loctite
- **How much does it cost?** ₩239990 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/294031248-si-5900-silicone-based-flange-sealant-high-resistance-to-oil)

## 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

- • **Instant, Flexible Adhesion:** Provides superior flexibility and instant sealing with low odor and non-corrosive formula.
- • **Oil-Resistant Sealant Power:** Engineered to resist oil, ensuring long-lasting flange protection without breakdown.
- • **Unmatched Thermal Endurance:** Withstands extreme temps from -65°F to 500°F, perfect for demanding environments.
- • **Zero Shrinkage, Zero Worries:** Formulated to never shrink, compress, crack, or relax, maintaining a flawless seal over time.
- • **Versatile Multi-Material Bonding:** Bonds seamlessly to metal, plastic, glass, and ceramic—one sealant for all your needs.

## Overview

LOCTITE® SI 5900 is a premium silicone-based flange sealant offering exceptional resistance to oil and extreme temperatures (-65°F to 500°F). Its flexible, non-shrinking formula bonds reliably to metal, plastic, glass, and ceramic substrates, making it the go-to choice for stamped sheet metal covers and multi-purpose sealing applications.

## Description

SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax

## Features

- Capacity Vol. - 300 mL
- Temp. Range - -65.0 °F [Min], 500.0 °F [Max]
- Hardness - 35.0 Shore A
- Applications - Multi-Purpose
- Applicable Materials - Most Metals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Colour | As shown in the image |
| Brand | Loctite |
| Liquid Volume | 10.14 Fluid Ounces |
| Item Form | Paste |
| Surface Recommendation | Metal |
| Number of Items | 1 |
| Manufacturer | Loctite |
| UPC | 079340201668 |
| Global Trade Identification Number | 00079340201668 |
| Net Quantity | 1 Count |
| Material | As shown in the image |
| Country of Origin | India |
| Model number | 20166 |
| Item Weight | 410 g |
| Item model number | 20166 |
| Included Components | 1 |
| Are batteries included? | No |

## Product Details

- **Colour:** As shown in the image
- **Brand:** Loctite
- **Liquid Volume:** 10.14 Fluid Ounces
- **Item Form:** Paste
- **Surface Recommendation:** Metal

## Images

![SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax - Image 1](https://m.media-amazon.com/images/I/71TbD3KjohL.jpg)
![SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax - Image 2](https://m.media-amazon.com/images/I/611m9PUgjpL.jpg)
![SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax - Image 3](https://m.media-amazon.com/images/I/61y+NLdkHWL.jpg)
![SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax - Image 4](https://m.media-amazon.com/images/I/71RTc94CP0L.jpg)
![SI 5900 | silicone-based| flange sealant |high resistance to oil| used in stamped sheet metal covers| metal, plastic, glass,ceramic substrates| does not shrink, compress, crack or relax - Image 5](https://m.media-amazon.com/images/I/81rwmDuNvQL.jpg)

## Frequently Bought Together

- Loctite 212184 5900 Flange Sealant, Heavy Body RTV Silicone, 300 mL Cartridge, Black
- 2-PK Ride Plate Plastic Fitting Replacement for SeaDoo GTX RXP RXT GTI GTS OEM# 293710114

---

## 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.kr/products/294031248-si-5900-silicone-based-flange-sealant-high-resistance-to-oil](https://www.desertcart.kr/products/294031248-si-5900-silicone-based-flange-sealant-high-resistance-to-oil)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-27*