Select Page

Silicone hose plays a key role in areas such as the chemical, medical and food industries, but its resistance to different chemical environments is often a key issue. This guide takes an in-depth look at chemical compatibility testing of silicone hose to help you understand how to choose the best material for your needs, ensuring safety and performance.

Uncovering the significance of chemical compatibility testing

Silicone hoses are used in a wide range of industrial environments to transport a variety of chemicals, including acids, bases, solvents, and fuels. The chemical compatibility of these hoses is critical for several reasons:
Safety: Ensuring the integrity of the hose prevents leaks and potential spills, protecting people and the environment from hazardous chemicals.
Performance: Compatible hoses maintain their structural integrity and performance over time, preventing premature degradation and ensuring reliable operation.
Cost Effectiveness: Compatible hose extends its useful life, minimizing replacement costs and downtime.

Braided silicone hose

Chemical Compatibility Test Procedure

The following steps should be followed when performing chemical compatibility testing:
Select Test Chemicals: Select representative chemicals that cover all the types you expect to encounter in real-world applications.
Sample Preparation: Cut the silicone hose sample to size and wash it to remove surface contaminants.
Contact Test: Place the hose sample in the chemical and conduct a contact test at a predetermined time and temperature.
Test Methods: Standardized test methods such as immersion test, weight change test, and mechanical property test are used to evaluate the effect of chemicals on the hose material.
Evaluating Performance: Observe the hose samples for changes in appearance, dimensional changes, and mechanical properties during the test period.

Interpretation of chemical compatibility test report

A chemical compatibility test report typically contains the following information:
Chemical List: Records the chemicals used in the test and their concentrations.
Appearance Changes: Describes changes in the appearance of the hose sample during exposure testing, such as discoloration, hardening, etc.
Dimensional Changes: Documents the dimensional changes of the hose sample after exposure testing, such as expansion, contraction, etc.
Mechanical Properties: Evaluate the mechanical properties of the hose samples after contact testing, such as tensile properties, abrasion resistance, etc.

Braided silicone hose
Braided silicone hose

Selection of the most suitable silicone hose

Hose with good chemical compatibility: Choose a silicone hose that performs well in tests and is compatible with the chemicals you use.
Consider the application environment: Choose a silicone hose that will perform better in your application, taking into account the temperature, pressure, and flow rate of the hose in real-world conditions.


Chemical compatibility testing is a critical step in ensuring that silicone hose operates safely and reliably in specific chemical environments. By gaining a deeper understanding of the chemical compatibility of silicone hose and selecting the material that best suits your application needs, you can ensure the long-term stable operation of your equipment and improve productivity and product quality.