As the pharmaceutical, food, and high-purity fine chemical industries continue to demand higher standards of equipment cleanliness and media compatibility, conventional cobalt-blue glass-lined enamel is no longer sufficient for many high-end processing applications.

We are pleased to introduce GP-5B White Glass-Lined Enamel, our latest innovation designed for high-performance glass-lined equipment. GP-5B fully complies with the performance requirements specified in GB/T 25025-2025, the Chinese National Standard for Glass-Lined Equipment, delivering reliable corrosion protection and exceptional cleanliness for critical processing environments.

Outstanding Alkali Resistance
GP-5B offers significantly improved resistance to alkaline corrosion compared with conventional glass-lined enamel. Its enhanced durability makes it suitable for processing alkaline media while broadening the operating range of glass-lined equipment.
Low Heavy Metal Leaching for Enhanced Product Purity
GP-5B is formulated without cobalt, nickel, copper, or other heavy-metal colouring components. Heavy metal leaching is maintained at a very low level, helping minimise the risk of metallic contamination.
This makes GP-5B particularly suitable for pharmaceutical manufacturing, food processing, and the production of light-coloured, high-purity fine chemicals where product cleanliness is essential.
No Colored Ion Dissolution, Preventing Material Discoloration
By eliminating cobalt-based coloring systems, GP-5B prevents the release of colored ions, effectively reducing discoloration issues during the production of light-colored intermediates, fragrances, and high-purity chemicals.
Optimized for Photochemical Reaction Processes
The white enamel surface minimizes visible light absorption, allowing more efficient light utilization inside the reactor. GP-5B is therefore well suited for glass-lined equipment used in photocatalytic and photochemical synthesis processes
Excellent Visibility for Process Monitoring
The clean white enamel surface allows operators to clearly observe material stratification, crystallization, suspended solids, and color changes through the sight glass, enabling real-time monitoring of reaction conditions.
Facilitates Cleaning Validation
Residues, scale, and surface contamination are much easier to identify on a white enamel surface. GP-5B supports GMP-compliant CIP cleaning validation and is well suited for pharmaceutical and food manufacturing environments where hygienic standards are critical
Pharmaceutical Industry:
Crystallizers, preparation tanks, purified water storage tanks, and API reaction equipment.
Food Industry:
Glass-lined equipment for beverage extraction and food ingredient processing.
Fine Chemical Industry:
Production equipment for light-colored intermediates, high-purity raw materials, fragrances, and photochemical reaction processes.
For product samples, technical data sheets, application recommendations, or firing process guidance, please contact our technical and sales team.
We look forward to supporting your next glass-lined equipment project with GP-5B White Glass-Lined Enamel.