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WACKER® FINISH WS 60 E
WACKER® FINISH WS 60 E is a special macro emulsion of a hydrogen siloxane, which produces optimum water-repellent effects on textiles of all kinds of fibrous material in combination with a tin or zirconium containing catalyst.
特性
WACKER® FINISH WS 60 E imparts water repellency and provides a soft supple feel to textiles while retaining their full breathability (permeability to water vapour).
Furthermore, the wet staining properties are reduced. The finishing effects are largely unaffected by washing and dry cleaning.
数据表
Processing:
An essential prerequisite for optimum water-repellent effect is thorough precleaning of the material and the removal of all interfering wetting agents. WACKER® FINISH WS 60 E is applied by padding or spraying.
The baths are prepared by stirring first the silicone emulsion and then the catalyst into water acidified with acetic acid (pH 4-5) if required.
The stability of the bath is improved by using demineralized water.
The baths can be used for about 4 to 12 hours, depending on the hardness of the water, the degree of contamination by entrained fibre residues, the use of additional agents and bath concentration.
Compatibility with other additives is generally good, but bath stability and the water-repellent effect should be checked in preliminary tests.
In case anticrease agents are used, it is recommended to use zinc chloride or zinc nitrate as catalyst instead of magnesium chloride in order to avoid a reduction of the water-repellent effect.
In order to obtain the optimum water-repellent effect, drying at the usual temperatures for the individual types of fibre should be followed by short post-heating at 120 °C to 160 °C (for 10 - 20 minutes). The water-repellent effects, however, are also obtained after storage for several days at room temperature.
Guide formulation
20 - 40 g/l WACKER® FINISH WS 60 E
2 - 4 g/l commercially available zirconium catalyst (e.g. WACKER® REPELLENT 50 CATALYST Z)
储存
The 'Best use before end' date of each batch is shown on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
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