Rocket Engine Heat Shield Liner from Canada
Ablative or ceramic thermal protection liner that shields rocket engine structures from combustion chamber temperatures exceeding 3000°C. Covered by HTS 8412.90.9050 as protective parts of reaction engines.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide ablation rate and temperature profile test data to verify rocket combustion protection function
• Specify material composition (phenolics, carbon-carbon) matching rocket engine requirements
• Document as 'engine-specific' to avoid generic refractory material classification