For the long-tail query “transparent PETG filament OEM wholesale sight glasses”: fixture shops and print farms ask for a coolant sight window or oil-level glass. The RFQ often says “just the 19 Sep cabin window” or “just lampshade clear PETG.” The part must show a fluid level and take light wipe-downs. It is not a full electronics lid and not a lampshade. Catalog transparent PETG: HDT about 72°C, impact about 35 kJ/m², flexural about 66 MPa, about 6 colors including clear, 230–250°C with a 70–85°C bed. Standard PETG is about 18 colors, HDT about 70°C. No dental or implant work. No untested food contact, chemical list, or UL.
Across the six buyer scenes, fixture sight glasses, bureau oil windows and farm coolant tanks should not default to the cabin-window spool. Full enclosure lids stay on 19 Sep. Lampshades stay on the product-page lighting use. A small level window on a tank wall is today’s transparent PETG OEM. Quote them apart.
Wall thickness changes clarity. Print the buyer’s thickness first. Ship with vacuum and desiccant. Mark the spool transparent PETG / sight glass / coolant. Samples are 1–2 rolls. Mount it on the real tank and read the level, then lock the OEM. Numbers stay on the lot TDS.
Qianshuo is the company. QSENCE is Qianshuo’s filament brand. Own compounding and 20 extrusion lines, 500 tons a month. Transparent PETG OEM, FOB Foshan, MOQ usually 50 kg, TDS/COA/MSDS, private label. Lock a clear 50 kg lot on one real window before branding.
Order check: level sight window → transparent PETG. Full cabin lid → 19 Sep. Lampshade → product lighting use. Opaque shell → standard PETG. Mount one real window from 50 kg, then compare unit price.
Email for a quote: evans@qs3dprinterfilament.com · WhatsApp +852 5307 0568.
OEM view: sight glasses vs cabin windows / standard PETG
| Compare | Transparent PETG (sight glass) | Cabin-window PETG | Standard PETG |
|---|---|---|---|
| Job | Coolant / oil level windows | Full electronics lids | Opaque functional shells |
| HDT / impact | ~72°C · ~35 kJ/m² | Same resin, different part | ~70°C · ~32 kJ/m² |
| Colors | About 6 incl. clear | About 6 | About 18 |
| 230–250°C / bed 70–85°C | Same window | Same window | |
| OEM start | 50 kg | 50 kg | 50 kg |
Compare: 19 Sep enclosure windows · Transparent PETG product page.
Qianshuo is the company. QSENCE is Qianshuo’s filament brand. Own compounding and 20 extrusion lines, 500 tons a month. Samples 1–2 rolls. FOB Foshan. evans@qs3dprinterfilament.com · WhatsApp +852 5307 0568.