Business

At Daejin Refinement, we are committed to continuous research into clay minerals and refining technologies to produce the world’s finest materials for sanitaryware applications.

Casting rate

Evaluates the speed at which clay slip fills a plaster mold and forms a desired wall thickness.

Firing and Viscosity Test

Firing Test : Assesses shrinkage, weight loss, and deformation of clay bodies after high-temperature firing.
Viscosity Test : Measures the flow behavior and injection stability of clay slip.

Casting Property Test

Conducted after slip casting and demolding to examine shrinkage, mechanical strength, and drainability (drain property) of the formed body.

High-Performance
Features of Daejin Clay

Daejin Clay’s high-grade properties contribute directly to improving production yield.

01

Formulated with 8 to 12 rigorously verified raw materials to ensure product consistency and stable quality.

02

Low drying shrinkage, excellent adhesion to molds, and high surface hardness reduce casting defects.

03

Excellent sintering properties and minimal deformation lower the risk of firing defects.

04

Maintains favorable dewatering performance even under high-pressure casting conditions.

05

Excellent dispersibility and drainability help reduce casting-related defects.

06

Backed by 30 years of quality management know-how, we offer stable production and low defect rates.

From Mine to Materials

R&D

Head Office412-16, Mahanmunhwa-ro, Shinbuk-myeon, Yeongam-gun, Jeonnam, South Korea

Tel+82 61)473-1081~2

Emaildjclay@daejinclay.com

Copyrightⓒ2025 Daejin Refinement Co., Ltd. All Rights Reserved.

Privacy Policy

The company informs customers through the Privacy Policy about how the personal information provided is used and what measures are taken to protect personal information.

▶ Purpose of Collecting and Using Personal Information

- Identifying individuals, verifying real names, confirming intent to sign up, and ensuring age-restricted service usage based on service use.
- Fulfilling contracts related to service provision, such as billing for services provided, delivering content, purchasing and processing payments, and dispatching items or billing statements.
- Delivering notices, ensuring communication for handling complaints, and ensuring accurate delivery information for item shipments.
- Providing information on new services and offering personalized services.
- Facilitating smooth provision of high-quality services.

▶ Personal Information Collected

- Name, company name, email, address, contact number, mobile phone number, inquiry details, and other optional items.

▶ Retention and Use Period of Personal Information

- As a general rule, personal information is destroyed immediately once the purpose for its collection or provision has been fulfilled.
- However, for the purpose of ensuring smooth service consultations, the content of the consultation may be retained for 3 months after completion. In cases where other laws, such as the Act on the Consumer Protection in Electronic Commerce, require preservation, the information may be retained for a specified period.

▶ Procedure and Method for Destroying Personal Information

The company, as a general rule, destroys personal information without delay after the purpose of collection and use has been fulfilled. Information entered for membership or other purposes is transferred to a separate database (or, in the case of paper records, to a separate file) and stored for a certain period according to internal policies and relevant laws before being destroyed. Personal information transferred to a separate database is not used for any other purpose unless required by law. Personal information stored in electronic file formats is deleted using technical methods that prevent the recovery of the records.

Prohibition of Unauthorized Email Collection

Daejin Refinement Co., Ltd. prohibits unauthorized email collection.

The collection of email addresses posted on this website using email collection programs or other technical devices is prohibited, and violators may be punished under the Act on Promotion of Information and Communications Network Utilization and Information Protection.