WEICON Black-Seal silicone for engines and gearboxes

51,81 zl PLN 64,76 zl PLN Save 12,95 zl PLN

Tax includedShipping calculated at checkout

Only 4 left!

Cechy szczególne: Klej/uszczelniacz jednoskładnikowy, Wydajność w wysokich temperatur.

Zastosowanie: Hydraulika, Wysoka temperatura i stopy

WEICON Black-Seal

High temperature engine sealant

WEICON Black-Seal is a black, high-temperature (up to +300°C) adhesive and sealant. Solvent-free, durable, resistant to oils, greases and pressure, aging and highly elastic (breaking elongation 500%). Black-Seal is designed for gluing and sealing in applications requiring high resistance to oils and greases. WEICON Black-Seal can be used on gearboxes, valve covers, transmissions, oil sumps, tanks, flanges and much more.


  • in gearboxes
  • in the valve covers
  • in gears
  • in oil pans
  • in tanks
  • in collars

Features and Benefits:

  • high temperature
  • durable
  • resistant to oils
  • resistant to lubricants and pressure, aging
  • has high flexibility

Technical data

Base 1K-Polysiloxane (Acetate)
Viscosity Paste
Stability, Leakage (ASTM D 2202) >1mm
application temperature +5 to +35 °C
Curing type Cured with ambient moisture
Curing conditions thermal resistance +5 to +40°C and 30% to 95% air humidity
The formation of the epidermis
7 minutes
Curing speed (first 24 h) 2 - 3 mm
Volume change (DIN 52451) -9%
Minimum gap 5mm
Maximum gap 25mm
Shelf Life (+5°C to +25°C / +41°F to +77°F) 12 months
Shore A hardness (DIN 53505 / ASTM D 2240) ± 5 thirty
Breaking elongation (DIN 53504 / ASTM D 412) 500%
Tensile strength 2.0N/mm²
Medium Shear Strength (DIN EN 1465/ASTM D 1002) 0.7N/mm²
dielectric strength 21kV/mm
Specific resistance 2.5 x 10^15 ohms/cm
Breaking strength (DIN 53515/ASTM D 1002) 4.0N/mm²
Maximum allowable deformation 15%
For painting NO
Building material category (DIN 4102) B 2
Thermal resistance -60 to +280 short term (from 2 h) to +300 °C
ISSA-Code 75.634.24/25/26
IMPA-Code 81 52 84/85/86

Application method:

The surfaces must be clean and grease-free. Many surface contaminants such as oil, grease, dust and dirt can be removed with WEICON Surface Cleaner. We recommend WEICON Spray Cleaner S for dirty metal surfaces; WEICON Sealant and Adhesive Remover is suitable for removing old paint or adhesive residue. Most materials can be easily combined with each other and with each other. We recommend the use of a primer (WEICON Primer) for certain materials or extreme requirements. Mechanical surface treatment (e.g. by grinding or sandblasting) can significantly improve the adhesion of the adhesive.

Methods of use:

Cartridge Gun method of use

Adhesive application gun (310 ml cartridge), compressed air gun, we recommend the version with a plunger (WEICON Pneumatic dispensing gun), automatic dosing systems. Tube processing Squeeze by hand, close immediately after use, once opened should be used as soon as possible.

Method of application pressure pack

Remove the closure. Regulate flow rate Max. or Min. Press handle and distribute medium. After turning the valve to the "min." the valve closes automatically and the product flow is stopped. Connecting glued parts

Available packages:

[ 85ml ][ 200ml ][ 310ml ]