Blister tray packaging is a pre-formed plastic cavity (or pocket) produced through thermoforming or vacuum-forming, designed to hold one or more items securely in place for protection, organization, or retail display. Used across pharmaceuticals, electronics, medical devices, consumer goods, and food — blister trays combine product visibility with tamper evidence and precision positioning.
What Is a Blister Tray?
A blister tray is a thermoformed plastic insert with product-shaped cavities that holds items in a fixed position within a package. Unlike generic void-fill materials that loosely surround products, blister trays provide precision positioning — each cavity is engineered to match the exact contour of the product, eliminating movement during transit. Blister trays can be sealed to a backing card (blister pack), placed inside a carton (insert tray), or used as standalone clamshell containers.
Types of Blister Packaging
| Type | Construction | Best For |
|---|---|---|
| Face Seal Blister | Formed blister sealed to printed card | Retail hardware, electronics, toys |
| Clamshell | Hinged two-piece container | High-value retail, food, tools |
| Insert/Cavity Tray | Multi-pocket tray inside a carton | Medical kits, cosmetics, chocolates |
| Trapped Blister | Blister sandwiched between cards | Premium retail, tamper-resistant |
| Slide Blister | Blister slides into card slot | Small hardware, batteries |
| Cold-Form Blister | Aluminum foil formed cavities | Pharma — moisture/light barrier |
Material Selection
| Material | Clarity | Properties | Best For |
|---|---|---|---|
| PET | Crystal clear | Food-safe, recyclable, high clarity | Food, cosmetics, retail |
| PVC | Clear | Chemical resistant, economical | Hardware, industrial |
| PP | Translucent | Heat resistant, flexible | Microwavable, automotive |
| HIPS | Opaque | Impact resistant, low cost | Electronics, dairy, industrial |
| PETG | Clear | No stress whitening, tough | Medical, premium retail |
| Alu-Alu | Opaque | Ultimate moisture/light barrier | Pharma cold-form blisters |
Industry Applications
| Industry | Application | Key Requirement |
|---|---|---|
| Pharmaceuticals | Tablet/capsule unit-dose packs | Child-resistant, moisture barrier |
| Medical Devices | Sterile instrument trays | ISO 11607 validated seal |
| Electronics | Component trays, ESD protection | Anti-static surface resistance |
| Consumer Goods | Retail display blisters | Visual merchandising + theft deterrent |
| Food | Chocolate trays, fruit punnets | FSSAI/FDA food-contact compliance |
| Cosmetics | Flocked luxury insert trays | Premium unboxing feel |
| Automotive | Returnable component dunnage | Multi-trip stackable design |
Special Features Available
Flocking: Velvet-like fiber coating for luxury presentation — jewelry, watches, cosmetics.
Anti-Static (ESD): Surface resistivity 10^6-10^9 ohms — electronics components, PCBs.
Tamper-Evident: VOID pattern or snap-lock that shows if package was opened.
Child-Resistant: Push-through or peel-push mechanisms — pharma compliance.
Hang Holes: Euro-slot or delta holes for retail peg display.
Stackable Ribs: Interlocking features for stable multi-tray stacking in transit or on shelves.
Design Specification Checklist
1. Product dimensions + tolerances (provide sample or CAD file).
2. Number of cavities per tray and tray outer dimensions.
3. Material and gauge (200-1500 microns depending on application).
4. Special treatments: flocking, anti-static, UV resistance, food-contact.
5. Sealing method: heat seal to card, snap-close, friction fit into carton.
6. Quantity and frequency — determines tooling approach (aluminum vs steel molds).
Custom Blister Trays from BENZ Packaging
PET, PVC, PP, HIPS, PETG. Flocked, anti-static, food-grade. ISO 9001 certified.
In-house mold design. Fast prototyping. Pan-India delivery.
Request a Free Quote at benzpackaging.com
BENZ Packaging Solutions Pvt Ltd | IMT Manesar, Gurugram | 080-4275-7261 | care@benz-packaging.com
