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WACKER® WS - WEATHERSEAL SUPERIOR

$WACKER<sup>®</sup> WS - WEATHERSEAL SUPERIOR

WACKER® WS - WEATHERSEAL SUPERIOR is a one-part neutral silicone sealant that will not stain exterior substrates. It exhibits good adhesion without primer on most building materials and displays outstanding weather resistance and durability.


Properties

WACKER® WS - WEATHERSEAL SUPERIOR cures at room temperature in the presence of atmospheric moisture to give a permanent flexible silicone rubber.

  • long shelf life
  • non-sag
  • readily gunnable both at low (+5 °C) and high (+40 °C) temperatures
  • good tooling properties
  • good weatherability
  • good adhesion
  • excellent durability

The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material such as dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and clean, lint-free, cotton cloth. Remove residual solvent before it evaporates with a fresh clean, dry cloth. For application from cartridges cut thread open, fix nozzle on top and cut to required bead size. The sealant can be applied in beads or layers. It requires moisture in order to cure. The curing time can take longer at lower temperatures, lower humidity or by low volume of air exchange.


Restrictions on use WACKER® WS - WEATHERSEAL SUPERIOR is not recommended for sealing of aquarium or for long term use under water. WACKER® 121 - AQUARIUM has been specifically developed for aquarium applications. WACKER® WS - WEATHERSEAL SUPERIOR is not suitable for food grade applications where the joints are likely to come in contact with food. For this application please use WACKER® 120 – FOOD CONTACT. WACKER® WS - WEATHERSEAL SUPERIOR is not suitable for the following plastic substrates such as Polyethylene, Polypropylene, ABS, PMMA (Plexiglas®), Polycarbonate (PC).


It is the responsibility of the user to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coatings or organic plasticizers can lead to discoloration of the sealant. Cleaning agents and gaseous emissions can damage the sealant in its function or change its appearance. WACKER cannot make a general statement to the compatibility of all these varying materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests.


- Developed for sealing external and internal connection and expansion joints where a non-staining material is desirable

- Equally suitable for stone and ceramic joints as well as aluminum curtain wall and panel joints


Adhesion WACKER® WS - WEATHERSEAL SUPERIOR exhibits excellent primerless adhesion to most non-porous siliceous materials (e.g. glass, tiles, ceramics, enamel, glazed tiles) metals (e.g. aluminum, steel, zinc or copper) or painted wood


Users must carry out own tests due to the great variety of substrates.


The adhesion can be improved in many cases by pretreatment of the substrate with a primer.

Packaging

WACKER® WS - WEATHERSEAL SUPERIOR is usually supplied in standard size cartridges that fit all standard caulking guns. Additionally it is available in convenient sausages.

Storage

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. Store dry and cool. 

Sales and support

Wacker Chemie AG
Heilbronner Strasse 74
70191 Stuttgart
Germany
+49  711  61942-0 (Phone)
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Products Technical data
Movement capability Density
WACKER® GA (2) 20 %[1] 20 %[1] 1,01 g/cm³[2] 8,429 lb/gal[2]
Legend
[1] Movement capability | ISO 11600,  [2] Density | ISO 1183-1 A 

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Wacker Chemie India Pvt. Ltd.
Goregaon E,
Mumbai 400063
+91  22  42365-500 (Phone)

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