DUPLEX
Coated brilliance. Grey or white — your choice.
DUPLEX is a premium duplex board available in uncoated and coated variants with grey back and white back options — engineered for high-quality printing, retail packaging, and consumer goods.
Engineered for print-ready packaging
DUPLEX is our flagship duplex board range — available in four variants: Uncoated Grey Back, Uncoated White Back, Coated Grey Back, and Coated White Back. Each variant is precision-manufactured to deliver consistent caliper, smooth printability, and excellent converting performance.
The coated variants feature a bright clay-coated top surface that delivers outstanding ink holdout, sharp print reproduction, and a premium visual finish — ideal for high-end retail packaging, cosmetics, pharmaceuticals, and FMCG brands.
The uncoated variants offer a natural, tactile surface suited for functional packaging, inner cartons, and applications where a matte or natural aesthetic is preferred. All variants are available in grammages from 180 gsm to 450 gsm.
Key Features
- Four variants: Uncoated Grey Back, Uncoated White Back, Coated Grey Back, Coated White Back
- Bright clay-coated top surface on coated variants for superior print quality
- Excellent ink holdout and colour reproduction
- Consistent caliper and grammage across the sheet
- Suitable for offset, flexo, and digital printing
- Good die-cutting, creasing, and folding performance
- Available in 180–450 gsm range
- ISO 9001 aligned quality management
Applications
Where SOWJI DUPLEX delivers its best performance.
Retail Packaging
Folding cartons for FMCG, food, and consumer goods brands.
Pharmaceutical Cartons
Medicine and healthcare packaging requiring clean print and precise converting.
Cosmetics & Personal Care
Premium folding cartons for cosmetics, skincare, and personal care products.
Food Packaging
Dry food, bakery, and snack packaging with food-safe coated surface.
Technical Specifications
All values as per IS / ISO standards.
| Property | Value |
|---|---|
| Grammage (ISO 536) | 180 – 450 gsm |
| Caliper Tolerance (ISO 534) | ± 4% |
| Top Surface | Clay-coated (coated) / Natural (uncoated) |
| Back Surface | Grey back or White back |
| Brightness — Top (ISO 2470) | ≥ 80% (coated); ≥ 70% (uncoated) |
| Burst Strength (ISO 2758) | ≥ 1.8 kPa·m²/g |
| Taber Stiffness — MD (ISO 2493) | ≥ 8 mN·m (180 gsm); ≥ 25 mN·m (400 gsm) |
| Moisture Content | 6% – 9% |
| Ash Content | ≤ 25% |
| Standard Sheet Size | 56×71 cm / 70×100 cm / Custom |
| Packing | Shrink-wrapped reams or pallets |
| MOQ | 500 kg |
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Need a sample or custom grade?
Our technical team will help you select the right duplex variant for your application.
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