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Phosphate-Bonded Refractory Mortar

Chemical-setting mortar with monoaluminum phosphate binder for fast repairs in steel plant ladles. HTS 3816.00.20 as other refractory mortars, offering abrasion resistance at 1600°C. Preferred for emergency maintenance.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3%+37.5%40.5%
🇲🇽Mexico3%+10.0%13%
🇨🇦Canada3%+10.0%13%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2835.29Lower: 16.6% vs 40.5%

If pure phosphate chemicals without refractory aggregates

Unmixed phosphates are Chapter 28; aggregates make composition.

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Import Tips & Compliance

Declare phosphate content for chemical classification; include pH stability data

Short shelf life—ship refrigerated if required, note on invoice