Wurth Neutral Perfect Silicone Black 310ml

Meets the requirements of window glazing in accordance with DIN 18545, Part 2 Sealant Group E
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Highly adhesive.

Excellent adhesion on wood, metals and many plastics.

Excellent compatibility with paint.

Optimum adhesion on the majority of standard paint and glazing coatings

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Does not leave a tacky surface.

High degree of wear resistance and good smoothing properties.

Permanently elastic.

Building material class B2, as per DIN 4102.

Short thread tension
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Neutral silicone Perfect is not suitable for adhesive bonding or filling hollow spaces.
Due to the large number of existing paint and glazing formulas, especially on alkyd resin paints, oil-based coatings and powder-coated aluminium, it is necessary to perform your own tests. Remove excess smoothing agent on the glass and on the frame. Otherwise there is the risk of streaking. Risk of yellowing on contact with white alkyd resin paints cannot be excluded. The transparent colour is adjusted to be milky/cloudy. When hardening, neutral silicone Perfect gives off an odour typical of silicone. This odour can no longer be smelled once the hardening process is complete. Colour adjustment: matt. Silicone surfaces should not be cleaned with abrasive cleaning agents or dissolving cleaners.

Silicone has a tendency to discolour in dark areas where there is no UV exposure. Avoid contact with VKP tape.

For materials and substances that come into contact with the sealant after processing, the user must ensure that their content or fumes cannot cause any impairment or alteration (e.g. discolouration) of the sealant joint. To determine the precise colour, use sample card art. no. 5995000400

Proof of Performance
Tested in accordance with EN 15651 Parts 1, 2 and 3

Fire behaviour: Class E
Stability under load:< 3 mm
Volume loss:< 10%
Adhesion/expansion under pre-stress after immersion in water: Passed
Adhesion/expansion after exposure to heat, water and artificial light: Passed
Elastic recovery: = 70%
Tensile behaviour tensile stress value: < 0.4 MPa

For window glazing and sealing connection joints in wooden, plastic and aluminium windows.
Sealing expansion joints for indoor and outdoor use, such as door, wall, floor, ceiling and window ceiling joints and gutters.
Creating a seal between frame and safety glass. When doing so, it should be ensured that there can be no direct contact between the sealant and the laminated safety glass film.
Without primer: Wood (varnished, painted – refer to instructions), glass, aluminium (bare, painted, glazed), all types of metal (except lead and copper), enamel, tiles, plastic-coated panels, hard PVC
With primer: Concrete, aerated concrete, sand-lime brick, clinker, brick, gypsum, plaster.