Neutral silicone Perfect
Neutral silicone Perfect - 1
Neutral silicone Perfect - 2
Neutral silicone Perfect - 3
Neutral silicone Perfect - 4
Neutral silicone Perfect - 5
Neutral silicone Perfect - 6
Neutral silicone Perfect - 7
Neutral silicone Perfect - 8
Neutral silicone Perfect - 9
Neutral silicone Perfect - 10
Neutral silicone Perfect - 11
Neutral silicone Perfect - 12
Neutral silicone Perfect - 13
Neutral silicone Perfect - 14
Neutral silicone Perfect - 15
Neutral silicone Perfect - 16

For detailed information, other images and documents, please select individual articles from the following table.

Neutral silicone Perfect

Highly adhesive, tested and versatile sealant for expansion joints in indoor and outdoor use, for window glazing and for use in sanitation applications

  • Chemical basis: Neutral crosslinked silicones, oxime-based
  • Fungicidal properties: Yes
  • Ultraviolet resistance: Yes
  • Continuous motion absorption: 25 %
  • Smell/fragrance: Characteristic
  • Full curing speed/conditions: 2 mm/d / 23°C and 50% relative humidity
  • Min./max. processing temperature: 5 to 40 °C
  • Min./max. temperature resistance: -40 to 150 °C
  • Coating compatibility: Yes
  • Shore A hardness: 20
  • Min. breaking elongation: 450 %
  • Breaking elongation conditions: for 2-mm film
  • Building material class: B2 - Normally inflammable
  • DIN: 18545-2
  • Water-vapour diffusion resistance factor value µ: 749

See product details

Available in 23 versions

Prices for customers after login

Exclusively for trade customers

Register now and access more than 125,000 products


You can refine your search by selecting different attributes

Art.-no. Container Contents Colour Density Quantity PU
Cartridge 310 ml Transparent 1.04 g/cm³
Cartridge 310 ml Bahama beige 1.26 g/cm³
Cartridge 310 ml Manhattan 1.26 g/cm³
Cartridge 310 ml Black 1.26 g/cm³
Cartridge 310 ml Light ivory 1.26 g/cm³
Cartridge 310 ml Concrete grey 1.26 g/cm³
Cartridge 310 ml Dark brown 1.26 g/cm³
Cartridge 310 ml Silk grey 1.26 g/cm³
Cartridge 310 ml Brown 1.26 g/cm³
Cartridge 310 ml Copper beech, Cherry 1.26 g/cm³
Bag 600 ml White 1.26 g/cm³
20 pcs
Bag 600 ml Dark brown 1.26 g/cm³
20 pcs
Cartridge 310 ml Hornbeam, Spruce, medium 1.26 g/cm³
Cartridge 310 ml Oak 1.26 g/cm³
Bag 600 ml Transparent 1.04 g/cm³
20 pcs
Bag 300 ml White 1.26 g/cm³
20 pcs
Bag 600 ml Black 1.26 g/cm³
20 pcs
Cartridge 310 ml Brilliant white 1.26 g/cm³
Bag 300 ml Transparent 1.04 g/cm³
20 pcs
Cartridge 310 ml White 1.26 g/cm³
Bag 600 ml Concrete grey 1.26 g/cm³
20 pcs
Cartridge 310 ml Anthracite 1.26 g/cm³
Bag 600 ml Anthracite 1.26 g/cm³
20 pcs

Packaging unit

The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.

Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:

Information on price and image display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units


The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.

Hazardous Material

Product information

Würth Catalogue

Catalogue page as PDF  | 

Flip catalog


Datasheets ()

CAD Data  | 




Technical information

Exclusively for trade customers

Register now and access more than 125,000 products

Call customer service: +49 7940 15-2400

Prices for customers after login

Ideal for window glazing

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

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

  • 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

Neutral silicone Perfect is not suitable for adhesive bonding or filling hollow spaces. Complies with building material class DIN 4102. 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

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

The usage instructions are recommendations based on the tests we have conducted and our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee consistent quality of our products. We reserve the right to make technical changes and further develop products.