Heat Seal Coating
|Heat Activated Seal||Envelopes|
- Spectra-Guard® HSL is an aqueous based heat seal coating. The formulation allows superior bonding when the coating comes in contact with itself and heat is applied.
- Spectra-Guard® HSL can be glued with cold-set adhesives or hot-melt adhesives. Spectra-Kote® can provide you with a detailed list of qualified adhesives best suited for use with this product.
Spectra-Guard® HSL is overprintable using Flexographic presses. It is recommended that all inks be reviewed for suitability of ink coverage.
- Spectra-Guard® HSL is suitable for application with rod, roll, blade and gravure equipment. Minimal heat addition is recommended and the use of liner chiller systems when available.
Coating Type Proprietary Polymer Color Liquid / Dry :: White / Clear pH 6.5 — 7.5 Viscosity #2 Zahn (sec) 20.0 — 40.0 Repulpability Yes FDA Compliant* Yes Freeze / Thaw Stable *For complete compliance information please contact Spectra-Kote®. The above
properties are typical values and should not be interpreted as product specifications.
- Spectra-Guard® HSL water-based formulation is specially designed for simple handling. This non-hazardous odorless coating can be washed clean from machinery with soap and water. The coating is compatible with standard industry water-based cleansers. If the coating comes in contact with the skin, simply rinse with water.