Primer Butyl primer

Primer, butyl-bitumen

Art.-no. 0892875

Prices for customers after login

Primer Butyl primer

Art.-no. 0892875

Prices for customers after login



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Improved adhesion on rough, porous and absorbent surfaces. Also suitable for bitumen tapes.

Improves adhesive strength

  • Excellent adhesion to a wide range of surfaces

  • Rough and porous surfaces are strengthened

Simple use

Apply butyl primer to the surface being treated with a brush and let the surface flash off until the primer stiffens and exhibits a strong surface adhesiveness.

The usage instructions are recommendations based on the tests we have conducted and are based on 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.

Product information

Würth Catalogue(X)

Catalogue page as PDF 1  |  2

Flip catalog


Safety data sheet

Application area

Butyl primer is always required to ensure optimum adhesion on porous and absorbent surfaces. To improve adhesive strength on oxidising metals such as iron, lead etc., these surfaces too must always be treated with pre-primer. For other surface materials, the adhesive strength can be increased by using the primer.

Butyl primer is required for all self-adhesive Würth butyl and bitumen tapes:

  • Butyl tape/butyl round cord

  • Butyl tape with aluminium and fleece lamination

  • Bitumen tape with aluminium, unpainted copper or aluminium terracotta lamination

  • Indoor sealing fleece

  • Indoor sealing tape/outdoor sealing tape

Butyl primer must be used on:

Concrete, aerated concrete, bitumen, lead, iron, fibre cement, natural stone/artificial stone.

Adhesive strength can be optimised with butyl primer:

Acrylic glass, acrylic paint, alkyd resin lacquer, bare aluminium, anodised aluminium, chlorine rubber varnish, chrome, DD varnish, dispersion window varnish, dispersion façade paint, stainless steel (V2A) (V4A), enamel, epoxy enamel, glazed and unglazed tiles, glass, copper, scumbling coat, marble, melamine resin (Resopol), brass, polycarbonate, polyester (GFRP), hard PVC, untreated and galvanised steel, polystyrene, zinc plating, zinc dust paint.


The surface to be primed must be dry, load-bearing and free from dust and release agents. Apply the primer evenly (apply a thicker coat to porous surface materials).

Chemical basis

Solvent-containing synthetic natural rubber


Transparent, yellowish


750 ml


0.75 g/cm³ / at 20°C, DIN 51757

Min./max. application quantity in volume/area /conditions

150-250 ml/m² / depending on the absorbency of the surface

Min. flash-off time

10 min

Min./max. processing temperature

5 to 30 °C

Shelf life from production/conditions

12 Month / cool and dry storage area, in sealed original container

Additive article:

Household glove


Liquid-proof, premium-quality cleaning glove made from natural latex
x 12 pcs
Household glove


Liquid-proof, premium-quality cleaning glove made from natural latex
x 12 pcs
Household glove


Liquid-proof, premium-quality cleaning glove made from natural latex
x 12 pcs
Household glove


Liquid-proof, premium-quality cleaning glove made from natural latex
x 12 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.

Suitable glove:

Nitrile chemical protective glove
Nitrile chemical protective glove
Permeation level: 2
Cotton velour lining
Nitrile chemical protective glove, heavy-duty
Nitrile chemical protective glove, heavy-duty
Permeation level: 3
Long, heavy-duty design
Permeation is the process by which a chemical moves through the material of a protective glove on a molecular level. The time from the initial contact between the chemical and the glove to the permeation of the material is the breakthrough time.
Measured breakthrough time
Permeation level
< 10 min
≥ 10 min
≥ 30 min
≥ 60 min
≥ 120 min
≥ 240 min
≥ 480 min

Important information:

The information given is based on experience and laboratory conditions and is designed as a guide. However, the actual suitability of a glove depends on the individual conditions of its use and must be confirmed by an appropriate test under operational conditions. Given the variety of materials and chemicals used, the possibility of incompatibility or usage problems for the wearer cannot be excluded in individual cases. We would be happy to advise you about optimum solutions.
Art.-no. Cust. Mat. No.

Hazardous Material

Product information

Würth Catalogue

Catalogue page as PDF  | 

Flip catalog


Datasheets ()

CAD Data  | 




Technical information