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Labthink Instruments Co., Ltd.
Testing Water Vapor Permeability of Rubber Plastic Insulation Sheet

Testing Water Vapor Permeability of Rubber Plastic Insulation Sheet

Product catalog summary

Introduction
Rubber plastic insulation sheets are crucial for reducing energy consumption and enhancing building efficiency. Their performance is significantly influenced by water vapor permeability, which affects the material's service life and insulation efficiency.

Insulation Properties
The insulation capability of rubber plastic sheets is due to the air bubbles within their structure. These bubbles provide better insulation by increasing gas content. However, exposure to temperature and humidity variations can allow water vapor to penetrate, reducing insulation efficiency due to water's higher thermal conductivity compared to air.

Testing Instrumentation
The Labthink C360H Water Vapor Transmission Rate Test System is designed to measure the water vapor transmission rate of materials like rubber plastic insulation sheets. It uses the gravimetric determination method and complies with ASTM E96 standards. The system features a patented test chamber design, precision test dishes, and professional software for precise control of testing conditions.

Testing Procedure
According to ASTM E96, testing requires a controlled environment with a temperature of (23 ± 1) °C and a relative humidity of (50 ± 3)%. A sample is placed in a test chamber with a desiccant to create a 0% humidity environment. The water vapor transmission rate is determined by weighing the test cup regularly.

Conclusion
Advanced testing equipment allows manufacturers and users to assess the water vapor permeability of rubber plastic insulation sheets, ensuring compliance with energy efficiency and durability standards. Labthink promotes collaboration with the packaging industry for quality control improvements.

Catalog excerpts

Testing Water Vapor Permeability of Rubber Plastic Insulation Sheet-1

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Testing Water Vapor Permeability of Rubber Plastic Insulation Sheet Rubber plastic insulation sheet, a high-quality thermal insulation material, plays a vital role in reducing energy consumption and improving building efficiency. To ensure its optimal performance, it is essential to assess its water vapor permeability, as this property directly affects its service life. Rubber plastic insulation sheet derives its insulating properties from the tiny air bubbles within its structure. The more abundant these bubbles, the higher the gas content and, consequently, the better the insulation effect. However, when exposed to varying temperature and humidity conditions, water vapor can penetrate the material. This is problematic because water has a higher thermal conductivity than air, leading to a decrease in insulation efficiency and a shorter lifespan. Therefore, the water vapor resistance of thermal insulation materials is a critical factor for long-term durability. The Labthink C360H Water Vapor Transmission Rate Test System is a specialized instrument designed to accurately measure the water vapor transmission rate of materials like rubber plastic insulation sheet. This instrument is designed and manufactured based on the gravimetric determination method and conforms to the requirements of ASTM E96. This instrument can be used to measure the water vapor transmission rate of barrier materials with high, medium and lower moisture barrier properties with a wide testing range 1

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Testing Water Vapor Permeability of Rubber Plastic Insulation Sheet-2

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 and high testing efficiency. The instrument features Labthink’s patented test chamber design with multiple test dishes. C360H is equipped with precision made test dishes, highly accurate balance, embedded professional software which supports automatic controlling of temperature, humidity and flow rate precisely and guarantees the testing sensitivity and repeatability of the test results. C360H is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other packaging materials in...

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