---
product_id: 671350933
title: "Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Strongest toilet unblocker, kitchen sink unblocker, drain cleaner, sink cleaner, 1KG"
brand: "spartax"
price: "₱3723"
currency: PHP
in_stock: true
reviews_count: 8
category: "Spartax"
url: https://www.desertcart.ph/products/671350933-sodium-hydroxide-caustic-soda-powder-lye-for-soap-making-sink
store_origin: PH
region: Philippines
---

# multi-surface unblocker power 99%+ pure sodium hydroxide child-resistant safety cap Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Strongest toilet unblocker, kitchen sink unblocker, drain cleaner, sink cleaner, 1KG

**Brand:** spartax
**Price:** ₱3723
**Availability:** ✅ In Stock

## Summary

> ⚡ Clear pipes, craft soaps, conquer clogs — all in one powerful pack!

## Quick Answers

- **What is this?** Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Strongest toilet unblocker, kitchen sink unblocker, drain cleaner, sink cleaner, 1KG by spartax
- **How much does it cost?** ₱3723 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/671350933-sodium-hydroxide-caustic-soda-powder-lye-for-soap-making-sink)

## Best For

- spartax enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Unblocker:** From kitchen sinks to outdoor drains, tackles hair, grease, and food waste with lasting effect.
- • **Long-Lasting Results:** Powerful formula delivers quick, durable pipe clearing that outperforms typical store-bought cleaners.
- • **Safety First Packaging:** Child-resistant cap and sturdy bottle for secure handling in busy homes and workshops.
- • **Trusted by Pros & Makers:** Highly rated by soap crafters and cleaning pros alike for purity, strength, and reliability.
- • **Pure Power for Soap & Drain:** 99%+ pure caustic soda ensures flawless saponification and industrial-strength clog clearing.

## Overview

Spartax Sodium Hydroxide (Caustic Soda) 1KG is a premium, 99%+ pure lye powder essential for professional soap making and heavy-duty drain cleaning. Its versatile formula effectively dissolves tough blockages in sinks, toilets, showers, and outdoor drains while ensuring safety with a child-resistant cap. Trusted by both craft enthusiasts and commercial users, it delivers fast, long-lasting unclogging power and superior saponification results.

## Description

Caustic Soda - Sodium Hydroxide, essential for craft enthusiasts and commercial cleaners alike. It serves as a crucial component in lye for soap making, commonly included in soap making kit and soap making supplies. As a base in soap base, it catalyses saponification, making it indispensable in crafting high-quality soaps. In cleaning applications, this potent caustic soda crystals acts as a clog cleaner and more specifically, sink and drain cleaner, efficiently clearing severe blockages. It is known for its effectiveness as a sink unblocker, toilet unblocker, shower unblocker, and shower drain unblocker, ensuring free-flowing pipes and drains in both residential and commercial settings.It excels in rigorous environments as a toilet unblocker heavy duty, industrial drain unblocker, and heavy duty drain unblocker, showcasing its versatility across various scenarios. It also addresses kitchen needs as a kitchen sink unblocker and complements this with its role as a kitchen drain unblocker. Outdoor cleaning challenges are no match for its strength as both an outdoor drain unblocker and outside drain unblocker. Its specialized formulations include caustic soda drain unblocker and wild sink and drain cleaner, tailored for diverse cleaning tasks. It’s further used as a bathroom drain unblocker and bathroom sink unblocker, providing comprehensive solutions for bathroom maintenance. This chemical is effective as a bath unblocker, drain unblocker bathroom, bathtub cleaner, sink drain cleaner, and drain hair remover. It rounds out its capabilities as a plughole unblocker, shower drain cleaner, drain cleaners and unblockers, and drainpipe cleaner, ensuring that all plumbing systems remain in optimal condition. It serves as a drain smell eliminator, pipe unblocker, and toilet drain unblocker, actively eliminating odors and maintaining hygiene. Handling this robust solution requires careful attention, ensuring effectiveness while prioritizing safety in its diverse applications.

Review: Soda - I’ve been looking for a really strong and effective drain cleaner for a while, since most store-bought products didn’t work well or only gave temporary results. This product – pure sodium hydroxide (caustic soda) – turned out to be by far the best solution. I used it in the bathtub, where a lot of hair usually builds up, and also in the kitchen sink, where food waste often causes blockages. In both cases, the effect was quick and long-lasting – the pipes are now completely clear and the problem is gone. This is definitely the best caustic soda on the market I’ve tried so far. Another big plus is the packaging – a sturdy plastic bottle with a child-resistant cap, so there’s no risk of accidental opening. Of course, I still recommend keeping it far away from children and pets, as it’s a very powerful product. I also really appreciate the purity and quality – no fillers, just pure sodium hydroxide, which makes it perfect for other uses as well. Personally, I use it mainly for drain cleaning, but I could easily recommend it to a friend who’s looking for pure sodium hydroxide for soap making. To sum up: powerful, strong, long-lasting, and reliable. If you’re searching for something that truly works where others fail – this is the one. Highly recommended!
Review: Pure Caustic Soda - This product arrived on time, and the delivery was fast. Hydroxide, very pure, strong, powerful and effective. I was quite impressed and used it once for soap making. I highly recommend it.

## Features

- Causes severe skin burns and eye damage.
- May be corrosive to metals.
- a. Soap making supplies. Sodium hydroxide powder is crucial in soap and detergent production. Great for soap making kit. Lye for soap making, soap base.
- b. Drain unblocker and sink unblocker combine with toilet unblocker for complete clog resolution. Shower drain unblocker and kitchen sink unblocker ensure smooth water flow.
- c. Use caustic soda drain unblocker and heavy duty drain unblocker for tough blockages. Outdoor drain unblocker and bathroom sink unblocker target specific areas effectively.
- d. Toilet unblocker heavy duty pairs with sink and drain cleaner for powerful cleaning. Drain hair remover and plughole unblocker offer targeted solutions to keep pipes clear.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DLP6QM9G |
| Best Sellers Rank | 6,491 in Grocery ( See Top 100 in Grocery ) 44 in Drain Openers |
| Brand | Spartax |
| Customer Reviews | 4.6 out of 5 stars 140 Reviews |
| Manufacturer | AB Powder Products Limited |
| Manufacturer Part Number | 313450 |

## Product Details

- **Brand:** Spartax
- **Item weight:** 1 Kilograms
- **Molecular formula:** NaOH
- **Purity percentage:** 99
- **Item volume:** 1 Kilograms

## Images

![Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Strongest toilet unblocker, kitchen sink unblocker, drain cleaner, sink cleaner, 1KG - Image 1](https://m.media-amazon.com/images/I/418u3iPZ0kL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Soda
*by B***A on 13 September 2025*

I’ve been looking for a really strong and effective drain cleaner for a while, since most store-bought products didn’t work well or only gave temporary results. This product – pure sodium hydroxide (caustic soda) – turned out to be by far the best solution. I used it in the bathtub, where a lot of hair usually builds up, and also in the kitchen sink, where food waste often causes blockages. In both cases, the effect was quick and long-lasting – the pipes are now completely clear and the problem is gone. This is definitely the best caustic soda on the market I’ve tried so far. Another big plus is the packaging – a sturdy plastic bottle with a child-resistant cap, so there’s no risk of accidental opening. Of course, I still recommend keeping it far away from children and pets, as it’s a very powerful product. I also really appreciate the purity and quality – no fillers, just pure sodium hydroxide, which makes it perfect for other uses as well. Personally, I use it mainly for drain cleaning, but I could easily recommend it to a friend who’s looking for pure sodium hydroxide for soap making. To sum up: powerful, strong, long-lasting, and reliable. If you’re searching for something that truly works where others fail – this is the one. Highly recommended!

### ⭐⭐⭐⭐⭐ Pure Caustic Soda
*by J***H on 13 May 2026*

This product arrived on time, and the delivery was fast. Hydroxide, very pure, strong, powerful and effective. I was quite impressed and used it once for soap making. I highly recommend it.

### ⭐⭐⭐⭐⭐ Very happy 🥰🥰🥰🥰🥰
*by M***A on 19 March 2025*

The Best and Strongest Caustic Soda I've Ever Used! 😍🥰🤩 I can't express how happy I am to have finally found pure caustic soda that actually delivers incredible results! This product is extremely powerful, so you need to be careful while using it, but trust me—it’s absolutely worth it. It works like magic in dissolving food residue in the sink, leaving the drain completely clear. I also use it weekly to clean my bathtub, and it effortlessly removes all the hair buildup that used to slow down the water flow. This is, without a doubt, the best and strongest caustic soda I’ve ever used. The results are simply amazing, and I couldn’t be more satisfied! If you’re looking for a high-quality, super-effective solution for drain and pipe cleaning, this is the one. I highly, highly recommend it! 🔥💪 🥰🥰🥰🥰🥰🥰

## Frequently Bought Together

- Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Strongest toilet unblocker, kitchen sink unblocker, drain cleaner, sink cleaner, 1KG
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**Shop now:** [https://www.desertcart.ph/products/671350933-sodium-hydroxide-caustic-soda-powder-lye-for-soap-making-sink](https://www.desertcart.ph/products/671350933-sodium-hydroxide-caustic-soda-powder-lye-for-soap-making-sink)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-08-21*