ELASTOSIL^® 7000 N

Application fields

•  sealing of connecting and expansion joints in the building industry
•  glass and windows construction
•  sealing of joints between glazing and supporting structure (frames, transoms, mullions)
•  Industrial application as sealant in the automotive, aircraft and shipbuilding industries

Processing

Surfaces that will come into contact with the sealant must be dry, clean, and free of dust, dirt, rust, oil, or similar contaminants. Non-porous surfaces should be cleaned using a solvent and a clean, lint-free cotton cloth. The area must then be immediately wiped dry with a second clean cloth before the solvent evaporates.

It is the responsibility of the user to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coating materials (e.g., paints, varnishes, and glazes) or organic plasticizer containing rubbers (e.g., EPDM, butyl, and neoprene) can lead to discoloration or other impairments like loss of adhesion of the sealant. Substances that come into direct contact with the sealant after application, such as cleaning agents, or indirect contact through outgassing, can impair the function of the sealant or alter its appearance. Similarly, prolonged periods of darkness can cause slight discoloration of white sealants.

Due to the wide variety of possible materials and substrates, especially with plastics, WACKER cannot make any general statements regarding compatibility or adhesion. In case of doubt, users must carry out their own preliminary tests.

A decrease in temperature or humidity, as well as restricted air circulation, can significantly extend the time required for complete curing.

The work should only be carried out with sufficient fresh air supply. Wear appropriate protective clothing when processing.

Specification

ELASTOSIL^® 7000 N is certified and classified according to

• ISO 11600 F/G, class 25 LM
• EN 15651-1, class 25LM F-EXT-INT-CC
• EN 15651-2, class 25LM G-CC
• BS 15651-1, class 25LM F-EXT-INT-CC
• BS 15651-2, class 25LM G-CC
• DIN 18545-2, class E
• SNJF F / V, class 25E
• ASTM C920, type S, grade NS, class 50
• EMICODE EC1 PLUS

Adhesion

ELASTOSIL^® 7000 N adheres excellently to many non-porous, silicate-based substrates—such as glass, tiles, ceramics, glazed tiles, enamel, and clinker—without the need for prior treatment with primers. It also bonds well to metals such as aluminum, steel, zinc, and copper, to painted, stained, or impregnated wood, as well as to many plastics.

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

ELASTOSIL^® 7000 N must not be used as a secondary sealant in insulating glass applications.

ELASTOSIL^® 7000 N must not be used for structural glazing or bonding.

ELASTOSIL^® 7000 N is not recommended for use on natural stones, such as marble, granite, and quartzite, as it can cause staining.

ELASTOSIL^® 7000 N is not recommended for the construction of aquaria.

ELASTOSIL^® 7000 N is not suitable for food grade applications where the joints are likely to come in contact with food.

ELASTOSIL^® 7000 N It is not recommended for use in areas with heavy or permanent water exposure, such as swimming pools or public sanitary facilities.

 ELASTOSIL^® 7000 N is not suitable for mirror mounting.