Clasp Envelope

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Our team reviews requests in real-time during business hours (Mon-Sat 8:30AM-6PM GMT+8).

Details

Clasp Envelopes: Secure & Reusable Document Guardians

1. Circular Material Innovation

  • Made from FSC-certified kraft paper (350gsm) + nickel-free steel clasps, curbside recyclable with clasp removal in 10 seconds (EN 13432 compliant).
  • Inner silicone coating reseals up to 50 times (ASTM D5264 tested), ideal for legal firms and archival use.

2. Military-Grade Security

  • ​Triple-riveted steel clasps require 25kg force to pry open (tested per ASTM F1886), with optional serialized tracking numbers.
  • Wax-infused paper surface repels spills and humidity, surviving 72hrs in 90% RH environments.

Application Suggestions

Drug
Bookcase
Electronic commerce
Stationery and gifts
Clothing & Textiles
Medical/ Lab use

Standard Sizes

Product
Code
W x H
(in.)(mm)
CE16 x 9152 x 229
CE29 x 12229 x 305
CE310 x 13254 x 330
CE412 x 15.5305 x 394

Specification

Brand Name
SEMLIN
Material
kraft paper, cardboard paper
Design & Printing
Customized designs and printings are available
Feature
Smooth paper surface, Self-adhesive tape, Light weight, 100% recycle
Application
Can be used to post tape , CD, camera , lens , film , certificate , gifts, books etc.
Samples
Free Samples in stock for checking quality before bulk production
Package
By opp bags and corrugated boxes
Delivery Time
Within 15 days of order confirmation
Our advantages
Factory directly sale, very good quality and competitive price. 
Professional in the manufacture of air cushion packaging, best service.

Disclaimer
This product has acquired the relevant product qualification(s)/license(s) of certain applicable country/countries.

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