Custom plastic seal bags provide secure, heat-sealed closure for products that need a permanent, tamper-evident seal. Singapore manufacturers use these for applications where the bag must not be opened until the end user, or must be visibly tampered with if accessed before that point.
Key Features
- ✅ Permanent heat seal — bag must be cut open for access
- ✅ Tamper-evident — cannot be opened and resealed without detection
- ✅ Multiple material options — LDPE, HDPE, laminated films
- ✅ Custom printed — branding, warnings, handling instructions
- ✅ Clean, professional finish — consistent seal every time
- ✅ Automated sealing compatible — works with heat seal machines
- ✅ Wide size and thickness range — from sample to bulk sizes
Product Gallery
Product Specifications
| Dimension | Length x Width (fully customisable) |
| Thickness | 30 micron and above |
| Material | PE / CPE / OPP |
| Closure | Self-adhesive peel-and-seal |
| Printing | Up to full-colour |
| Film Colour | Clear / white / custom |
| Features | Secure seal, BPA-free, reusable |
| Custom Options | Peg hole, euro slot, custom print |
Why Choose This Product?
Plastic seal bags (also called heat seal bags) offer the highest level of seal security available in flexible packaging. Unlike zipper or adhesive-seal bags, heat-sealed bags must be physically cut open, they cannot be opened and resealed. Singapore’s medical device manufacturers use them for sterile packaging, while food manufacturers use them for single-use portions that must not be tampered with. The heat seal creates a clean, professional finish that signals product integrity. Available in pre-formed bags or continuous film rolls for automated packaging lines.
Common Applications in Singapore
- 🏥 Medical — sterile device and instrument packaging
- 🥩 Food — single-portion and vacuum-packed products
- 🔬 Lab — specimen and sample bags
- 📋 Legal — sealed evidence and document bags
- 🏭 Industrial — moisture-sensitive component packaging
Frequently Asked Questions
What types of heat seal are available?
Single seal, double seal, and fin seal. We match the seal type to your product and sealing equipment.
What materials can be heat sealed?
LDPE, HDPE, polypropylene, and laminated films. Each material requires specific seal temperature and time settings.
Can you add a tear notch for easy opening?
Yes, tear notches or laser scoring can be added for controlled opening.
What thickness is available?
From 25 microns for lightweight bags to 200+ microns for heavy-duty applications.
What is the minimum order?
No minimum order quantity.
Ready to Get Started?Tell us your requirements and we’ll send you a free quote within 24 hours. Custom sizes and full-colour printing available.
