GrainPro Bag Zipper

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Official product name: SuperGrainbag® Premium RZ

The GrainPro Bag Zipper is your primary Ultra-Hermetic™ solution for the safe storage of dry agricultural commodities. Made from high-strength PE with excellent water and air barrier properties, designed to safely preserve agricultural commodities without the need for chemical fumigants.

The GrainPro Bag Zipper acts as an inner liner for jute bags and polypropylene bags. It comes equipped with a two-track hermetic zipper. Commodities can be stored for more than a year without the risk of moisture ingress. It stops insect infestation and inhibits the growth of fungal contaminants without affecting the quality of the goods. It also preserves the germination rate of stored seeds.

This product comes in three sizes:

  • Small – average capacity of 15 kg, specially designed for coffee storage
  • Medium – average capacity of 25-30 kg
  • Large – average capacity of 69 kg

Product Specification

PARAMETER SPECIFICATION
Material High Strength PE with Barrier Layer
Thickness, microns 78 ± 10%
Color Green (Pantone 3385)
Material Weight, g/m2 73 ± 10%
Oxygen Transmission Rate (OTR), cc/m2/day at 0.1 MPa ≤ 4
Water Vapor Transmission Rate (WVTR), g/m2/day ≤ 5
Product Life, years 2
Warranty 3 uses or 1 - year, whichever comes sooner


Product Closing Mechanism Dimensions, cm (inch) Weight per piece, kg (lbs) Capacity*, kg (lbs)
Small 2 Track PE Zipper 40 x 70 (15.8 x 27.6) 0.05 (0.11) ± 10% 15 (33)
Medium 2 Track PE Zipper 65 x 80 (25.6 x 31.5) 0.10 (0.22) ± 10% 30 (66)
Large 2 Track PE Zipper 72 x 110 (28.4 x 43.3) 0.14 (0.31) ± 10% 69 (152)