Acid-Alkali Resistant Conveyor Belt
Acid-Alkali Resistant Rubber Conveyor Belt
An EP (polyester) canvas-core belt with a cover rubber blended and filled with acid-alkali resistant inert compound — built for continuous contact with acids, caustics, and corrosive brine in phosphate fertilizer, sea salt, and chemical processing lines, where standard belting and even neoprene (CR) covers degrade._1788744307_WNo_800d800.jpg)
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Why chemical exposure needs more than a rubber cover swap
In a phosphate fertilizer plant, a sea salt works, or a chemical processing line, it isn't just the top cover touching corrosive material — splash, dust, and condensate reach the edges and the carcass too. That's why this belt pairs an acid-alkali resistant cover compound, blended and filled with inert resistant material rather than standard rubber, with an EP (polyester) canvas skeleton. EP canvas holds up to acid and alkali attack more reliably than a cotton canvas core, and the finished belt outperforms neoprene (CR) acid-alkali belting on chemical resistance while keeping good elasticity, low elongation under load, and good slotting/grooving performance for skirting and cleat installation. Cotton, nylon, and polyester canvas core options are all available depending on your tensile and splice requirements, but EP is the standard recommendation wherever acid or alkali contact is continuous rather than occasional.- Cover compoundAcid-alkali resistant inert filled rubber
- Skeleton materialEP (polyester), cotton, or nylon
- BenchmarkOutperforms CR (neoprene) acid-alkali belts
- ElongationLow, under working tension
- Grooving / slottingGood performance for skirt & cleat fitting
- Typical dutyContinuous acid, alkali & brine contact
Rated against the acids and alkalis you're actually running
Chemical resistance is media- and concentration-specific. The table below is the reference we quote against — if your process runs a blend or a media not listed here, send the concentration and we'll confirm suitability.| Medium | Concentration | Medium | Concentration |
|---|---|---|---|
| Hydrochloric acid | 20% | Carbonic acid | Any concentration |
| Nitric acid | 10% | Sulfurous acid | Any concentration |
| Sulfuric acid | 20% | Acetic acid | Any concentration |
| Boric acid | 40% | Concentrated organic acids | Any concentration |
| Phosphoric acid | 40% | Caustic potash (KOH) | Any concentration |
| Arsenic acid | Any concentration |
Built for buyers handling acid, alkali & corrosive brine
If your current belt cover is softening, blistering, or cracking within months of installation, that's a chemical resistance mismatch, not a wear issue — this is the category to re-spec against.- Phosphate & chemical fertilizer manufacturing
- Sea salt production & evaporation works
- Sulfuric, hydrochloric & nitric acid plants
- Pulp & paper mills (acid/alkali process stages)
- Mining enterprises with acid leach circuits
- Lead-acid battery manufacturing & recycling
- Caustic soda & potash processing
- Textile & dye finishing plants
- Water & wastewater treatment dosing lines
- General chemical plant bulk material transfer
Common questions
How is this different from a standard neoprene (CR) acid-resistant belt?
The inert-filled acid-alkali cover compound used here outperforms neoprene on chemical resistance, and pairing it with EP canvas — rather than a cotton core — means the carcass itself holds up better if acid or alkali reaches the edges or a scored cover.
Can this belt handle both acid and alkali exposure on the same line?
Yes. The cover compound is rated across both acid media (hydrochloric, sulfuric, phosphoric, and others) and alkali media (caustic potash) rather than being optimized for one side only.
Do you offer cotton or nylon canvas core instead of EP?
Yes, cotton and nylon (NN) canvas cores are available. EP is the standard recommendation for continuous acid/alkali duty; cotton or nylon can be specified where contact is lighter or intermittent.
What if my process uses a chemical or concentration not listed in the resistance table?
Send us the exact medium, concentration, and operating temperature. Resistance is compound-specific, so we confirm against your process conditions rather than extrapolating from a similar chemical.
What information do you need to quote this belt?
The acid/alkali media and concentration in contact with the belt, operating temperature, belt width, canvas core preference, and conveyor length.
