1. Inner Tube Materials: Protect Against Chemical Corrosion
The inner tube of a chemical hose is critical—it directly contacts corrosive fluids.
PTFE
Ideal for harsh chemicals. PTFE resists almost all chemicals and handles high temps. It’s smooth, so fluids don’t stick. Thus it is great for ultra-pure or reactive chemical transfer.
EPDM Rubber
Works for moderate chemicals. EPDM is flexible and cost-effective. Thus it is common in industrial chemical hoses for less aggressive fluids.
Nitrile Rubber
Best for oil-based chemicals. NBR resists oil swelling and stands up to temps from -40℃ to 120℃. Thus it is perfect for chemical hoses in automotive or petrochemical use.
2. Reinforcement Materials: Add Strength to Chemical Hoses
Reinforcement layers prevent chemical hoses from collapsing or bursting under pressure.
Polyester Braids
Lightweight and flexible. They add moderate strength, suited for low-to-medium pressure chemical hoses. Polyester resists mildew and doesn’t rust, so it lasts in damp environments.
Steel Wire Braids
For high-pressure chemical hoses. Steel wire handles heavy stress, so it is ideal for industrial chemical transfer. Some use galvanized steel to resist rust from chemical spills.
Kevlar Braids
Ultra-strong yet lightweight. Kevlar-reinforced chemical hoses work in high-pressure, high-temp scenarios and resist cuts better than other materials.
3. Outer Cover Materials: Shield Chemical Hoses from Damage
PVC
Affordable and wear-resistant. PVC covers shield against scratches, UV rays, and minor impacts. Thus it is good for chemical hoses used outdoors or in busy workshops.
Chloroprene Rubber
Resists oil, ozone, and weather. It’s tough enough for heavy industrial use, where chemical hoses might rub against machinery or concrete.
Polyurethane
Flexible and durable. PU covers handle cold temps well and don’t crack easily. Thus it is suitable for chemical hoses in cold storage or outdoor winter use.