---
product_id: 133746405
title: "25KG - Calcium Chloride Flake Dihydrate 77% Food Grade Marine Concrete Desiccant Pool Balancer"
brand: "bluebay aquatics"
price: "€ 651.31"
currency: EUR
in_stock: true
reviews_count: 8
category: "Blue Bay Aquatics"
url: https://www.desertcart.com.cy/products/133746405-25kg-calcium-chloride-flake-dihydrate-77-food-grade-marine-concrete
store_origin: CY
region: Cyprus
---

# Exothermic reaction releases heat Deliquescent flakes absorb moisture 77% pure food-grade CaCl2 25KG - Calcium Chloride Flake Dihydrate 77% Food Grade Marine Concrete Desiccant Pool Balancer

**Brand:** bluebay aquatics
**Price:** € 651.31
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your water balanced and your space mold-free with premium calcium chloride flakes!

## Quick Answers

- **What is this?** 25KG - Calcium Chloride Flake Dihydrate 77% Food Grade Marine Concrete Desiccant Pool Balancer by bluebay aquatics
- **How much does it cost?** € 651.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/133746405-25kg-calcium-chloride-flake-dihydrate-77-food-grade-marine-concrete)

## Best For

- bluebay aquatics enthusiasts

## Why This Product

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

## Key Features

- • **Food-Grade Purity:** Safe for use in food-related applications and marine environments.
- • **Powerful Heat Release:** Exothermic properties accelerate dissolution and improve efficiency.
- • **Long-Lasting 25KG Bulk:** Cost-effective supply that lasts up to 18 months for home or commercial use.
- • **Moisture-Absorbing Flakes:** Deliquescent flakes actively trap humidity to keep spaces dry and mold-free.
- • **Precision Calcium Balance:** Maintain perfect water chemistry to prevent corrosion and scaling.

## Overview

This 25KG bag of 77% food-grade Calcium Chloride Dihydrate flakes from TETRA Chemicals is a versatile, moisture-absorbing, and exothermic compound designed to maintain optimal calcium levels in pools and spas, prevent corrosion and scale build-up, and effectively control dampness and mold in indoor environments. Trusted by professionals and homeowners alike, it offers long-lasting performance and excellent value.

## Description

Product description Main Information:Calcium Chloride DihydrateMolecular Formula: CaCl2.2H2OCAS Number: 10043-52-4Manufacturer: TETRA ChemicalsGrade: Food GradeAppearance: FlakesAlso Known As:DowflakeIce MeltKey Properties:Calcium chloride can be found in solid state at room temperature, and is available as flakes, granules and powdered form.Calcium chloride is salty to taste. Hence, it is added to many food products like canned vegetables, pickles etc.In solid form, calcium chloride is white in colour, while in liquidated form, it is colourless.Usually in a molten state, it is a good conductor of electricity.Calcium chloride is a bad conductor of heat.Its boiling point is as high as 1600 C.It is soluble both in inorganic solvents like water, as well as organic solvents like ethanol.It absorbs moisture from air. If exposed to open air, it tends to become liquid. That is why, it is often called a deliquescent substance.It has a low melting point, which means it can be dissolved at a very low temperature.Calcium chloride is exothermic in nature, that is, it releases heat during any chemical reactions.When calcium chloride is exposed to water, a large amount of heat is liberated, which can cause sputtering and boiling. The end product of this reaction is calcium hydroxide and chlorine gas. Directions Measure out the appropriate amount of calcium chloride flakes based on your pool or spa size and add it to the water to maintain calcium levels and prevent corrosion and scale build-up.

Review: Good value for money - Used these chips for a while keeps condensation in the house to a minimum.
Review: Great for damp traps - I have been using Calcium Chloride in my damp trap boxes for the past 8 years. To this day I don't have 1 mould mark in my bathroom, I have never had to clean any mould nor have I have to re-silicone the bathroom. These damp crystals are so effective. Mould and damp in the bathroom can cause chronic breathing issues hence this is a cheap way to keep the bathroom mould free. A 25kg bag lasts me around 18 months, so this is a cost effective way. £30 a year and half to keep my bathroom free from mould is a very good investment, it's the insurance policy for mould.

## Features

- Calcium Chloride Dihydrate
- TETRA Chemicals
- Flakes - Food Grade
- CaCl2.2H2O
- 25KG

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SH7VQ63 |
| Benefits | Maintains calcium levels for balanced water, preventing corrosion and scale build-up |
| Best Sellers Rank | 36,516 in Garden ( See Top 100 in Garden ) 41 in Pool Balancers |
| Brand | BlueBay Aquatics |
| Brand Name | BlueBay Aquatics |
| Customer Reviews | 4.8 out of 5 stars 34 Reviews |
| Item Form | Liquid |
| Item Weight | 25 Kilograms |
| Item form | Liquid |
| Item weight | 25 Kilograms |
| Manufacturer | TETRA Chemicals |
| Number of items | 1 |
| Product benefits | Maintains calcium levels for balanced water, preventing corrosion and scale build-up |
| UPC | 632016306366 |
| Unit Count | 25000 gram |

## Product Details

- **Brand:** BlueBay Aquatics
- **Item weight:** 25 Kilograms
- **Item form:** Liquid
- **Product benefits:** Maintains calcium levels for balanced water, preventing corrosion and scale build-up
- **UPC:** 632016306366

## Images

![25KG - Calcium Chloride Flake Dihydrate 77% Food Grade Marine Concrete Desiccant Pool Balancer - Image 1](https://m.media-amazon.com/images/I/717cHAOBF0L.jpg)

## Questions & Answers

**Q: What does the 77% mean? if it’s only 77% cacl then what is the other 23% made of? thanks.**
A: Hi,

As Calcium Chloride is highly soluble, the 77% is pure Calcium Chloride content and the other is mainly water molecules ;) 
77% is a very pure form of Calcium Chloride and is rated as Food Grade.
Hope this helps.

Regards
Adam @ BlueBay Aquatics

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value for money
*by D***E on 27 September 2024*

Used these chips for a while keeps condensation in the house to a minimum.

### ⭐⭐⭐⭐⭐ Great for damp traps
*by A***R on 14 May 2020*

I have been using Calcium Chloride in my damp trap boxes for the past 8 years. To this day I don't have 1 mould mark in my bathroom, I have never had to clean any mould nor have I have to re-silicone the bathroom. These damp crystals are so effective. Mould and damp in the bathroom can cause chronic breathing issues hence this is a cheap way to keep the bathroom mould free. A 25kg bag lasts me around 18 months, so this is a cost effective way. £30 a year and half to keep my bathroom free from mould is a very good investment, it's the insurance policy for mould.

### ⭐⭐⭐⭐⭐ No experience with this product…
*by X***X on 6 January 2024*

…I plan to refill passive dehumidifying tubs of calcium chloride with it. Already comes open presumably to prevent gas build up if it gets wet and eventual popping but that opening is well folded over so I didn’t have any spillage. It now lives in a kitchen cupboard and hopefully the damp in that wall is not actually that bad that I will need to deal with a lot of weak hydrochloric acid in that bag soon otherwise it may make a mess and I’ll have to splash out for a dehumidifier.

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- BlueBay Aquatics 25KG - Calcium Chloride Flake Dihydrate 77% Food Grade Marine Concrete Desiccant Pool Balancer
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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-20*