---
product_id: 641833401
title: "CT Rapid Hard - Hardener for Paver Block, Chequered Tiles, Cover Block, Cement Concrete Precast Boundary Wall, Electric Pole, AAC Block, RCC Hume Pipe I 1Kg"
brand: "caltek corporation"
price: "€ 31.59"
currency: EUR
in_stock: true
reviews_count: 7
category: "Cal Tek Corporation"
url: https://www.desertcart.hr/products/641833401-ct-rapid-hard-hardener-for-paver-block-chequered-tiles-cover
store_origin: HR
region: Croatia
---

# 200ml per cement bag dosage 12h fast demoulding Ultra high strength boost CT Rapid Hard - Hardener for Paver Block, Chequered Tiles, Cover Block, Cement Concrete Precast Boundary Wall, Electric Pole, AAC Block, RCC Hume Pipe I 1Kg

**Brand:** caltek corporation
**Price:** € 31.59
**Availability:** ✅ In Stock

## Summary

> ⚡ Harden faster, shine brighter, build smarter.

## Quick Answers

- **What is this?** CT Rapid Hard - Hardener for Paver Block, Chequered Tiles, Cover Block, Cement Concrete Precast Boundary Wall, Electric Pole, AAC Block, RCC Hume Pipe I 1Kg by caltek corporation
- **How much does it cost?** € 31.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/641833401-ct-rapid-hard-hardener-for-paver-block-chequered-tiles-cover)

## Best For

- caltek corporation enthusiasts

## Why This Product

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

## Key Features

- • **Precision Dosage:** Optimized 200ml per bag ensures consistent, reliable performance every time.
- • **Shine Like No Other:** Delivers a high-gloss finish that elevates the aesthetic of your concrete surfaces.
- • **Strength that Lasts:** Transforms ordinary concrete into rock-solid structures with ultra high strength.
- • **Versatile Application:** Perfect for paver blocks, chequered tiles, boundary walls, electric poles, and more—one solution for all.
- • **Speed Meets Efficiency:** Demould your paver blocks and tiles in just 12 hours—fast-track your projects effortlessly.

## Overview

CT Rapid Hard is a cutting-edge polycarboxylate ether-based concrete hardener and accelerator designed to boost strength and reduce water content. Ideal for a wide range of precast concrete products, it enables rapid demoulding within 12 hours and imparts a high-gloss finish, optimizing both durability and aesthetics for professional-grade construction.

## Description

CT Rapid Hard is a PCE based ultra high water reducing accelerator. It is a must use for Paver Block, Chequered Tiles, Cover Block, Ventilator Jali, Precast Boundary Wall, Concrete Electric Ploe, RCC Hume Pipe etc.

Review: Poor quality - Very bad product
Review: Best quality - Best quality hardener

## Features

- Gives very high strength
- Ultra high water reducer
- 12 hours demoulding
- Dosage - 200ml per bag of cement
- Gives very high shining

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D8M2W6FC |
| Best Sellers Rank | #8,634 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Catalysts |
| Brand | CalTek Corporation |
| Brand Name | CalTek Corporation |
| Colour | Clear |
| Compatible Material | Concrete |
| Country of Publication | India |
| Customer Reviews | 3.0 out of 5 stars 27 Reviews |
| Item Form | Liquid |
| Manufacturer | 10/2A Umakanta Sen Lane, Kolkata - 700030, WB. Customer Care - 9007940029, CalTek Corporation |
| Manufacturer Contact Information | 10/2A Umakanta Sen Lane, Kolkata - 700030, WB. Customer Care - 9007940029 |
| Manufacturer Part Number | CTRH |
| Material | Polycarboxylate Ether |
| Material Type | Polycarboxylate Ether |
| Number of Items | 100 |
| Number of Packs | 1 |
| Packer Contact Information | 10/2A Umakanta Sen Lane, Kolkata - 700030, WB. Customer Care - 9007940029 |
| Style | Concrete Hardener |
| Style Name | Concrete Hardener |
| Unit Count | 1.00 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** CalTek Corporation
- **Item Form:** Liquid
- **Material:** Polycarboxylate Ether
- **Style:** Concrete Hardener
- **Water Resistance Level:** Not Water Resistant

## Images

![CT Rapid Hard - Hardener for Paver Block, Chequered Tiles, Cover Block, Cement Concrete Precast Boundary Wall, Electric Pole, AAC Block, RCC Hume Pipe I 1Kg - Image 1](https://m.media-amazon.com/images/I/51v5pwVP3YL.jpg)

## Customer Reviews

### ⭐ Poor quality
*by A***R on 18 September 2026*

Very bad product

### ⭐⭐⭐⭐⭐ Best quality
*by S***Y on 24 September 2025*

Best quality hardener

### ⭐ Customer care is useless. Don't call him
*by A***N on 12 November 2025*

It is not hardener. It is for shine. Customer care is useless.

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**Shop now:** [https://www.desertcart.hr/products/641833401-ct-rapid-hard-hardener-for-paver-block-chequered-tiles-cover](https://www.desertcart.hr/products/641833401-ct-rapid-hard-hardener-for-paver-block-chequered-tiles-cover)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-11-14*