Plaster Fire Barrier Putty

Non-hardening plaster-based putty designed to seal penetrations in fire-rated walls. Made from gypsum compositions for firestop applications in construction. HTS 6809.90.00.00 covers such specialized plaster articles.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

3214.90.50.00Higher: 38.25% vs 35%

If non-refractory mastics or putties

If not plaster-based, falls under Chapter 32 for construction mastics.

3824.99Lower: 15% vs 35%

If chemical preparations for fireproofing

Chemical firestop compounds without plaster base go to Chapter 38.

6809.11.00Same rate: 35%

If pre-formed fire-rated plasterboard

Sheet forms classify under paper-faced plasterboard subheading.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

• Provide fire-rating test certifications from UL or equivalent standards

• Declare exact chemical composition to confirm plaster base vs. chemical compounds

• Avoid classifying as 'tools' (Chapter 82); emphasize as sealing material