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Lining material
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Safe-Gard Type ATM
SG-490
Product Description
Safe-Gard 490 is designed to provide a strong seal by Induction Heat Sealing to glass containers with
conventional hot and cold end treatments. It separates to form a foil membrane over the container neck and
a wax impregnated reseal liner in the closure (Type A material)
Typical Applications
Safe-Gard 490 can be used for sealing dry products, is available in pre-cut disc or tape form and the foil
membrane can be random printed with a security message or logo.
Seal Composition Nominal Thickness
Metric Standard
Board 0.90 mm
Wax/Adhesive Hatch Pattern
Aluminium foil 0.030 mm
Surlyn for sealing to glass 50 gsm
Composition Special Notation: The overall caliper is 1.00 mm.
Typical Physical Properties: MVTR < 0.01 g/m2 24 hrs @ 38°C 90% RH (BS3177 1959)
O2 Permeability < 0.01 cc/m2 24 hrs bar @ 23°C 50% RH (ASTM D-3985)
Regulatory Status: All components meet the relevant FDA and BGA requirements. Further details can be
supplied on request.
Storage & Handling: Safe-Gard lining materials are heat sensitive, and therefore transit or storage at
elevated temperatures can result in the facing separating from the backing material. It is recommended that
Safe-Gard products and lined closures are stored betweeen 15 - 30°C and 40 - 60% relative humidity.
Storage at temperatures outside these limits increases the possibility of bowing, shrinking, curling or
separation of the facing from the backing material. If materials are overheated or chilled during transit or
storage, it is advisable to store them in the recommended temperature and humidity range for at least 48
hours before processing further. Strict stock rotation is important and it is recommended that Safe-Gard
materials are wadded, capped and sealed within 12 months of our dispatch/invoice date.
Technical Data: All physical properties, statements and recommendations are either based on tests we
believe to be reliable or on our experience, but they are not guaranteed.
Product Use: User is responsible for determining whether the Unipac product is fit for a particular
purpose and suitable for the user's application. UNIPAC DISCLAIMS ALL EXPRESSED AND
IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE.
Limited Remedy: If this product is proved to be defective, the exclusive remedy available and Unipac's
SG-490
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