Engine sealing compound, Silicone Special 250

Name: Engine sealing compound, Silicone Special 250
Brand: Würth
SKU: 0890321

Engine sealing compound, Silicone Special 250
ENGSEALCOMPD-SIL-SPECIAL250-RED-70ML

Art.-no. 0890321

EAN 4011231822930

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Engine sealing compound, Silicone Special 250

Art.-no. 0890321

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Permanently elastic silicone sealing compounds for engine and bodywork, brief temperature resistance of 300°C

Cold-vulcanising silicone rubber

Bridges larger unevenness

Reliable at sealing, even after withstanding years of vibrations

Excellent adhesion and chemical resistance

Does not run or pull threads

Skin formation after just a few minutes, vulcanisation rate approx. 1.5 mm/day

Notice

Liquid sealants must only be used in combination with the original seal.

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

Datasheets(X)

Safety data sheet

Certificates/ Documents

Application area

For sealing engines, transmissions and bodywork, cylinder heads, crankcases, oil sumps, radiators, differentials, light housings, indicator housings, weld seams etc.

Instructions

The surfaces must be clean, dry and free from grease

Further information in the technical data sheet

Contents	70 ml
Chemical basis	Acetate-curing sealant
Density/conditions	1.05 g/cm³ / at 20°C
Full curing speed	1.5 mm/d
Colour	Red
Smell/fragrance	Vinegar
Weight of content	73 g
Min. skin-formation time	6 min
Max. skin-formation time	12 min
Conditions for skin-formation time	at 23°C and 50% relative humidity
Shore A hardness	30
Elongation at break	300 %
Continuous motion absorption (up to 150°C)	25 %
Continuous motion absorption (above 150°C)	18 %
Min./max. temperature resistance	-50 to 250 °C
Max. short-term temperature resistance	300 °C
Min./max. processing temperature	5 to 40 °C
Shelf life from production	18 Month
Conditions to maintain shelf life from production	cool and dry storage area below 25°C

Suitable glove:

Product

Description

Chemical protective glove chloroprene

Description:

Permeation level: 3

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.