Welcome to Hebei diao Rubber Products Co., Ltd.
Content number
Contact email
NEWS CENTER
01
2025
-
04
How to Determine the Quality of Automotive Silicone Hoses
Author:
How to Determine the Quality of DIAO Silicone Hoses for Automotive Use
When evaluating the quality of silicone hoses, consider the following factors:
1. Material Quality
High-quality DIAO silicone hoses use premium-grade silicone, ensuring excellent durability and elasticity. Inferior hoses may contain excessive fillers, making them prone to hardening and cracking over time.
2. Wall Thickness Uniformity
Gently pinch around the hose to check for consistent wall thickness. Our silicone hoses are designed with even wall distribution, which enhances pressure resistance. In contrast, uneven walls can lead to weak points and potential failure.
3. Texture and Resilience
Press the hose lightly and release it. A genuine silicone hose should quickly return to its original shape. If it deforms easily or takes too long to recover, the material may lack elasticity, affecting long-term performance.
4. Temperature Resistance
DIAO silicone hoses are built to withstand extreme temperatures, typically ranging from -60°C to +250°C. You can test this by exposing the hose to hot water—if it softens or warps, its heat resistance is questionable.
5. Pressure Resistance
High-quality silicone rubber hoses are manufactured using a hand-wound process, ensuring uniform reinforcement layers for superior pressure resistance. Try bending the hose—if it collapses too easily, it may lack the strength needed for automotive applications.
6. Odor
Low-quality silicone hoses often have a strong, unpleasant odor due to inferior additives. DIAO silicone hoses, on the other hand, are formulated with high-purity silicone, resulting in minimal to no smell.
7. Surface Smoothness
A premium silicone tube should have a smooth, clean surface without visible imperfections. Lower-quality alternatives may show rough textures or embedded particles, which can affect performance and longevity.
8. Burn Test (for non-flame-retardant hoses)
Cut a small piece of the hose and burn it. A high-quality silicone hose will not emit black smoke or a strong odor and will leave behind white, powdery ash. In contrast, substandard hoses may release black smoke and an unpleasant chemical smell.
For use in automotive cooling systems, turbocharger applications, or intake systems, choosing DIAO silicone hoses ensures reliable performance, durability, and resistance to extreme conditions. Always opt for hand-wound silicone hoses from reputable sources to guarantee long-term efficiency.
Our factory specializes in the production and supply of high quality silicone hoses, food grade silicone hoses, medical silicone hoses, fuel hoses, radiator hoses, air rubber hoses, EPDM sealing strips, spiral protective covers and silicone plates and other trucks, automotive rubber accessories (support OEM and ODM).
Our address
Wangguanzhuang Town, Qinghe County, Xingtai City, Hebei Province,China