Phosphate-Bonded Refractory Mortar
A ready-to-use refractory mortar with monoaluminum phosphate binder and alumina aggregates for jointing firebricks. Classified in HTS 3816.00.20.50 as other refractory mortars, suitable for boiler and incinerator repairs up to 1650°C. Offers strong adhesion and acid resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not meeting refractory temperature thresholds
Non-refractory construction mastics or grouts fall under Chapter 32.
If imported as chemical binder preparations without aggregates
Pure chemical binders are chemical preparations, lacking refractory matrix.
If pre-mixed and shaped into tundish boards
Semi-finished shapes are refractory articles under Chapter 69.
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Import Tips & Compliance
• SDS mandatory for phosphate content; check TSCA registration for binders
• Label as 'heat-set mortar (>1400°C)' to differentiate from construction mortars
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