---
product_id: 53716214
title: "SI 5331, Liquid Thread Sealant for Pipes, Silicone Sealer for Cold and Hot Water Carrying Plastic and Metal Pipes, Vibration Resistant Silicone Sealant, 12x100ml"
brand: "loctite"
price: "S/.393"
currency: PEN
in_stock: true
category: "Loctite"
url: https://www.desertcart.pe/products/53716214-si-5331-liquid-thread-sealant-for-pipes-silicone-sealer-cold
store_origin: PE
region: Peru
---

# Seals hot & cold water pipes Vibration resistant secure hold Temp resistant -50 to +150°C SI 5331, Liquid Thread Sealant for Pipes, Silicone Sealer for Cold and Hot Water Carrying Plastic and Metal Pipes, Vibration Resistant Silicone Sealant, 12x100ml

**Brand:** loctite
**Price:** S/.393
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in leak-free confidence with Loctite SI 5331!

## Quick Answers

- **What is this?** SI 5331, Liquid Thread Sealant for Pipes, Silicone Sealer for Cold and Hot Water Carrying Plastic and Metal Pipes, Vibration Resistant Silicone Sealant, 12x100ml by loctite
- **How much does it cost?** S/.393 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/53716214-si-5331-liquid-thread-sealant-for-pipes-silicone-sealer-cold)

## 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

- • **Universal Compatibility:** Seals plastic & metal threads flawlessly for versatile industrial use
- • **Permanently Elastic Seal:** Cures via humidity to maintain a flexible, low-strength hold that adapts to pipe movement
- • **High-Temperature Endurance:** Reliable performance from freezing cold to 150°C hot water systems
- • **Vibration-Proof Connections:** Secures fittings against loosening in high-vibration environments
- • **Certified Safe for Drinking Water:** WRAS, DVGW & NSF P1 approvals ensure trusted use in potable water systems

## Overview

LOCTITE SI 5331 is a premium one-component silicone thread sealant designed for sealing plastic and metal water pipes in industrial, agricultural, and wastewater systems. It forms a permanently elastic, vibration-resistant seal effective from -50°C to 150°C, suitable for both hot and cold water applications. Certified safe for drinking water, it cures in 96 hours via ambient humidity and comes in convenient 12x100ml tubes, ensuring secure, durable pipe connections that professionals trust.

## Description

LOCTITE SI 5331 - Thread sealant for plastic pipingLoctite SI 5331 is ideal as a thread sealant for various forms of water pipe insulation. The universal thread sealant is gel and can be used to seal hot and cold water-bearing plastic and metal threads and fittings, e.g. to secure plastic pipelines in industrial, agricultural or sewage systems. The sealant is single-component, so no mixing is necessary. It cures through humidity exposure at ambient temperatures to form a low-strength, permanently elastic seal which is effective against both cold and hot water. The low strength of the gasket is maintained at temperatures up to 150°C. In addition, the joints are protected against vibration loads. Based on acetoxy silicone, the silicone is white and has a paste-like consistency. LOCTITE SI 5331 is approved for use in drinking water systems*, DGVW approved** and NSF category P1 approved*** for use as a food processing sealant in areas where contact with food is not possible.Apply the sealant to the desired threaded parts (the parts may be as supplied or cleaned with a damp cloth or paper towel before application). The product should be applied to both male and female threads. To ensure an even distribution, brush down to the base of the thread. For use in drinking water installations, allow thread sealant to cure for 96 hours at 20 to 23°C before use.The Product Benefits at a Glance:Sealant for sealing threadsIdeal for plastic pipingFor metal, plastic or bothTemperature resistant from -50 to +150°COne-component & low strengthVibration resistantColour: WhiteFormat: 12x100ml tube*WRAS approval (BS 6920) for drinking water: 0706521**DVGW approval, tested according to EN 751-1***P1 NSF Reg. No.: 123620

## Features

- Causes serious eye damage.
- Causes skin irritation.
- May cause damage to organs through prolonged or repeated exposure.
- Universally applicable - The water pipe sealant is ideal for hot and cold water-bearing plastic threads or plastic/metal combinations, e.g. in industrial installations
- Low-strength thread sealant - The piping sealant hardens via air humidity to form a permanently elastic seal. This seals effectively against both cold and hot water
- Secure connections - The connections made with the thread seal are secured and resistant to vibration loads for a secure hold of the threads in plumbing fittings
- Securing and sealing - The piping thread leak sealer is ideal for securing and sealing plastic piping and pipelines in industry, agriculture or wastewater systems
- Package contents - LOCTITE SI 5331, plumbing thread sealant based on acetoxy silicone, one-component sealant, paste-like consistency, white, 12x100ml tube

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0052EGAXK |
| Best Sellers Rank | 82,381 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,121 in Sealers 7,515 in Nails, Screws & Fasteners |
| Brand | Loctite |
| Colour | White |
| Compatible Material | Metal |
| Container Type | Tube |
| Country Of Origin | Italy |
| Customer Reviews | 4.4 4.4 out of 5 stars (263) |
| Full Cure Time | 96 Hours |
| Included Components | 1x LOCTITE SI 5331 |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | LOCTITE SI 5331 |
| Item Volume | 100 Millilitres |
| Item Weight | 100 g |
| Manufacturer | Loctite |
| Manufacturer Part Number | 2061031 |
| Material | Metal,Plastic,Silicone |
| Model Number | 5331 |
| Number of Pieces | 12 |
| Other Special Features of the Product | Strong |
| Specific Uses For Product | Craft |
| Tensile Strength | 175 Pounds Per Square Inch |
| Viscosity Level | Medium |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Loctite
- **Item form:** Paste
- **Material:** Metal,Plastic,Silicone
- **Special feature:** Strong
- **Specific uses for product:** Craft

## Images

![SI 5331, Liquid Thread Sealant for Pipes, Silicone Sealer for Cold and Hot Water Carrying Plastic and Metal Pipes, Vibration Resistant Silicone Sealant, 12x100ml - Image 1](https://m.media-amazon.com/images/I/61CB6+5A5pL.jpg)

## Frequently Bought Together

- LOCTITE SI 5331, Liquid Thread Sealant for Pipes, Silicone Sealer for Cold and Hot Water Carrying Plastic and Metal Pipes, Vibration Resistant Silicone Sealant, 12x100ml
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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-09-12*