Rocket Engine Heat Shield Liner from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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