FP04 · Use & compliance
Uncoated Cupstock Base Paper
Base cupstock for downstream coating/printing/converting; uncoated base paper is distinct from finished PE-coated cupstock.Ranges describe documented grades, not every intermediate weight or stock availability. Caliper depends on grammage and grade; confirm the selected TDS, physical sample and order specification.
Product overview
What is Uncoated Cupstock Base Paper?
Uncoated Cupstock Base Paper is the paperboard substrate used before PE or another barrier layer is applied. Buyers select it for the strength, folding and forming performance required by the finished cup or container.
The technical family covers 160–330 gsm, with 160–230 gsm commonly used for regular PE-cup converting. Higher grammages can be discussed for food-board structures that need additional body.
Material direction
Define the contact condition first.
Confirm food type, contact time, temperature, barrier and the full coating or laminate construction.Material highlights
- Grade-specific values are available in the current TDS or approved sample
- Reels / sheets
Typical applications
- Paper cup and food-container converting
Practical questions
Before you specify.
What is the difference between raw cupstock and PE-coated cupstock?
Raw cupstock is the uncoated base paper before barrier coating. PE Coated Cupstock is the downstream product after polyethylene extrusion coating.
What GSM is available?
The technical data covers 160–330 gsm.
Which GSM is most common for PE cup converting?
The current commercial focus is 160–230 gsm.
Can higher GSM grades be supplied?
Yes, the TDS extends to 330 gsm, subject to project use and cost.
Can YOUNGSUN supply custom reel widths?
Yes, reel and sheet dimensions can be discussed according to the converting line and order.
Technical reference
Download the available English TDS.
Use the current grade-specific document for technical review, then confirm the approved sample and order specification.Continue comparing
