NPT SIGILL Silcoflex 590

General

Application fields

• sealing of connecting and expansion joints in the building industry
• sealing of joints in sanitary applications
• sealing of perimeter joints

 

Processing

The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material, dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and a clean, lint-free, cotton cloth. Remove residual solvent before it evaporates with a fresh clean, dry cloth.

It is the responsibility of the user to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coating materials (paints, varnishes and glazes) or organic plasticizer containing rubbers (EPDM, butyl and neoprene) can lead to discoloration or other impairments like loss of adhesion of the sealant. Materials in direct contact with the applied sealant like cleaning agents and materials in indirect contact like gaseous emissions can damage the sealant in its function or change its appearance. Even a longer period of time in the darkness white joints may show a slight yellowing.

Because of the multitude of these materials, Wacker cannot make a general statement to the compatibility or adhesion of materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests.

The time until complete curing may be extended at lower temperature, lower humidity, increasing film thickness or by low volume of air exchange.

 

Certification

NPT SIGILL Silcoflex 590 is certified and classified according to

• ISO 11600 F+G, class 25 LM
• EN 15651-1, class 25 LM F-EXT-INT-CC
• EN 15651-2, class 25 LM G-CC
• EN 15651-3, class XS1
• BS 15651-1, class 25 LM F-EXT-INT-CC
• BS 15651-2, class 25 LM G-CC
• BS 15651-3, class XS1
• DIN 18545-2 class E
• SNJF V+F, class 25 E
• EMICODE EC1-PLUS

 

Adhesion

NPT SIGILL Silcoflex 590 exhibits excellent primerless adhesion to most material used for sanitary application, e.g. glass, tiles, ceramics, enamel, glazed tiles and clinker on varnished or painted wood

Users must carry out their own tests due to the great variety of substances. The adhesion can be improved in many cases by pretreatment of the substrates with a primer. If adhesion difficulties arise please contact our technical service.

 

Restrictions on use

NPT SIGILL Silcoflex 590 must not be used as a secondary sealant in insulating glass units.

NPT SIGILL Silcoflex 590 must not be used for structural glazing bonding.

NPT SIGILL Silcoflex 590 is not suitable for use on natural stones, such as marble, granite, quartzite, as it can cause staining.

NPT SIGILL Silcoflex 590 is not suitable for construction of aquaria.

NPT SIGILL Silcoflex 590 is not suitable for food contact applications.

NPT SIGILL Silcoflex 590 is not recommended for applications in permanently wet areas where the joint is strongly or permanently exposed to water, e.g. in swimming pools, please contact our technical service.

NPT SIGILL Silcoflex 590 is not suitable for use as a mirror adhesive.

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.