South Korean Customer Conducts HSCA Field Test at EXPANDAG Factory | Soundless Cracking Agent Verification

In the global quarrying and mining sector, technical reliability is proven in the field, not just on paper. In July 2026, a South Korean construction and quarrying partner visited the EXPANDAG manufacturing facility in Hezhou, China. This two-day engagement was designed to move beyond laboratory datasheets and evaluate the real-world performance of our Soundless Cracking Agent (HSCA) on hard rock formations common in South Korean infrastructure projects.

How Was EXPANDAG HSCA Evaluated by the South Korean Partner?

Customer Location: South Korea
           Manufacturer: EXPANDAG (Hezhou, Guangxi, China)
           Verification Date: July 2026
           Verification Goal: Evaluate crack propagation and formula stability for 120MPa-class specifications.
           Result: Successful linear fracture development in natural granite and concrete blocks within 8–14 hours at 28°C. The field test confirmed stable expansion performance consistent with EXPANDAG’s high-strength industrial standards.

HSCA Field Test Technical Parameters

Why Did the South Korean Partner Visit the EXPANDAG Factory?

The partner sought a reliable alternative to high-cost European cracking agents. Their primary concern was ensuring the Soundless Cracking Agent could consistently handle the tensile strength of hard granite without the risk of premature expansion reactions.

How Was EXPANDAG HSCA Manufacturing Quality Evaluated?

Day one focused on a comprehensive manufacturing audit. The customer inspected our calcium oxide raw material control and production quality procedures. This process confirmed EXPANDAG’s ability as a direct manufacturer to maintain product stability and chemical potency during sea freight transit to South Korean ports like Busan and Incheon.

Which HSCA Grade Was Selected for South Korea’s Climate?

We discussed seasonal grade calibration. For international markets, EXPANDAG provides:

• HSCA-1: For higher temperature environments (25°C–40°C).

• HSCA-2: Standard grade for moderate spring and autumn conditions (10°C–25°C).

• HSCA-3: Winter grade optimized for temperatures between -5°C and 10°C.

For this field evaluation, HSCA-2 was utilized to provide optimal reaction kinetics for the 28°C on-site temperature.

How Did the HSCA Field Test Perform on Natural Rock?

The field test utilized 5kg of Soundless Cracking Agent in 38mm boreholes. By the following morning, the rock mass exhibited significant structural failure with clear, continuous fractures, demonstrating the material's suitability for granite cracking applications.

Concrete Block Verification for Urban Demolition

To evaluate performance for urban foundation removal, a secondary test was conducted on a factory concrete block. Visible fractures developed within 8 hours, proving the HSCA's suitability for vibration-sensitive demolition sites.

Conclusion: Sustaining Performance Consistency

Unlike theoretical comparisons, this customer evaluation provided direct field evidence of HSCA application under real temperature and drilling conditions. The test confirmed that EXPANDAG delivers stable expansion performance consistent with our 120MPa-class HSCA specifications.

Customer Visit and Soundless Cracking Agent FAQ

Q: What is HSCA used for?

A: HSCA (High Strength Cracking Agent, also known as Soundless Cracking Agent) is a non-explosive demolition material used for granite quarrying, concrete breaking, and stone splitting without noise, flyrock, or vibration.

Q: Why do customers test HSCA before a bulk purchase?

A: Because performance depends on variables like rock type and temperature. Field tests ensure the correct HSCA grade is selected for specific project conditions.

Q: Where is EXPANDAG HSCA manufactured?

A: EXPANDAG HSCA is manufactured in Hezhou, Guangxi, China, with specialized packaging designed for long-term stability during international sea freight.

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