
PB05 · Structure & performance
GC2 OBA-Free Folding Box Board
GC2 cream-back / OBA-free grade positioned separately from GC1.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 GC2 OBA-Free Folding Box Board?
GC2 OBA-free folding box board combines a printable top surface with a high-caliper board structure. The technical data covers 200–350 gsm and nominal calipers of 0.325–0.610 mm.
Select this grade by carton stiffness, creasing performance and the required OBA-free specification. Confirm food-contact documentation for the exact grade, application and destination market.
Material direction
Built around the finished structure.
Select the board by thickness, construction, stiffness and the operations it must pass through.Material highlights
- OBA-free grade designation for buyers with specific optical-brightener requirements.
- High-bulk caliper from 325 to 610 μm across the documented 200–350 gsm grades.
- High stiffness profile for folding cartons, beverage packaging and food-related carton structures.
- Controlled top-side brightness, gloss and print-surface strength for carton graphics.
- Internal Bond ≥130 J/m² in the TDS supports converting integrity.
Typical applications
- Folding cartons
- natural/back-side appearance packaging
Practical questions
Before you specify.
What does OBA-free mean?
This GC2 grade is designated free of optical brightening agents in its TDS. Confirm the exact grade and supporting documentation when an OBA-free specification is required.
What grammage is available in the current TDS?
200–350 gsm across ten documented grades.
Is GC2 the same as GC1 High Bulk?
No. YOUNGSUN treats GC2 and GC1 High Bulk as separate products with separate specifications.
Can GC2 be used for food packaging?
The grade is positioned as a high-bulk food card, but exact food-contact documentation must be confirmed for the intended application and market.
Technical reference


