Energy Efficient Absorbent Float Glass 4mm
4mm thick float glass with absorbent coating that blocks UV and IR for energy-saving skylights. HTS 7005.29.18.10 applies to float glass sheets with absorbent layer, polished, <5mm, >0.65m², not worked beyond annealing. Absorbent layer defined in notes as thin coating absorbing infrared.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If 5-10mm thick
Same type but thickness 5-10mm shifts to adjacent subheading 7005.29.25.
If in strips or profiles
Glass drawn/produced in strips or rigid tubes classifies under 7006 even if coated.
If made into drinking glasses
Fabricated into table/kitchen glassware moves to 7013.
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Import Tips & Compliance
• Test and certify absorbent properties (e.g
• solar heat gain coefficient <0.4) for customs validation
• Ensure no post-anneal cutting—chapter note (a) excludes pre-anneal processes but cutting affects classification
Related Products under HTS 7005.29.18.10
Low-E Coated Float Glass Sheet 4.8mm
A 4.8mm thick float glass sheet with a low-emissivity (low-E) coating that reflects infrared light to improve energy efficiency in windows. Classified under HTS 7005.29.18.10 as float glass with a reflecting layer, surface ground or polished, measuring less than 5mm thick and over 0.65m² in area, not otherwise worked. The microscopically thin metallic oxide layer qualifies as a reflecting layer per chapter notes.
Solar Reflective Polished Float Glass 3.5mm
3.5mm thick polished float glass with a solar control reflective coating to reduce heat gain in architectural applications. Fits HTS 7005.29.18.10 for nonwired float glass having a reflecting layer, under 5mm thick, over 0.65m², not otherwise worked. The coating absorbs/reflects infrared per chapter note (b).
Anti-Reflective Coated Window Glass 2.2mm
Ultra-thin 2.2mm float glass sheet with non-reflecting coating to minimize glare in display windows and greenhouses. Covered by HTS 7005.29.18.10 as surface-polished float glass with non-reflecting layer, <5mm thick, >0.65m² area. Chapter note (b) explicitly includes non-reflecting chemical coatings that prevent surface reflections.
Architectural Tinted Reflective Glass Sheet 4.5mm
4.5mm polished float glass with combined tint and reflective coating for modern building facades. Falls under HTS 7005.29.18.10: nonwired float glass with reflecting/absorbent layer, <5mm thick, large sheets >0.65m², not otherwise worked. Tint enhances the thin-film reflecting properties.
Greenhouse Low-E Float Glass 3mm
3mm thick low-E float glass designed for greenhouses to retain heat while allowing light transmission. HTS 7005.29.18.10 for coated float sheets with reflecting layer, under 5mm, over 0.65m². Coating microscopically thin per chapter definition.
UV Absorbing Polished Glass Sheet 4.2mm
4.2mm float glass with UV-absorbent thin film coating for museum displays protecting artifacts. Classifies in HTS 7005.29.18.10 as absorbent layer float glass, polished, <5mm, large area. Absorbs UV per chapter note definition.