Loctite Si 5970 Bk 50 Black Oil-Resistant Silicone For Sealing Flanges

Loctite SI 5970 for Flexible Flange Sealing

Loctite SI 5970 BK 50 ml is a black, single-component, alkoxy silicone-based sealant designed for flexible flange seals.

The product was specifically developed for sealing stamped sheet metal covers such as oil pans and timing belt covers. Its excellent resistance to engine oils makes Loctite SI 5970 suitable for use in automotive maintenance and machinery and equipment servicing.

The product is sold individually. The price is for one 50 ml tube.

Key properties of Loctite SI 5970

• One-component formula that does not require mixing

• Very good resistance to engine oils

• High ability to compensate for joint movements

• Resistance to vibrations and deformation of elements

• Tixotropic consistency that limits flow

• Dry surface after approximately 25 minutes

• Operating temperature range from -55°C to +200°C

• Can be replaced with appropriately selected cut gaskets

Loctite SI 5970 is designed for sealing flange connections exposed to contact with oil and displacement of connected elements. Typical applications include:

• Oil pans

• Timing covers

• Pressed sheet metal covers and housings

• Flexible metal flanges

• Connections subject to vibration

• Automotive repairs and service

• Industrial machinery and equipment maintenance

Before serial use, check the product's suitability for the specific substrate, medium, gap, and operating conditions.

How to use

1. Remove remnants of the old gasket and all loose dirt

2. Thoroughly clean and degrease the surfaces to be sealed

3. Apply the product in an even and continuous bead to one surface

4. Connect the components within a few minutes of application

5. Assemble the joint as required construction

The documentation indicates seven days as an example.

Brand | Loctite

Manufacturer | Henkel

Product | Loctite SI 5970 BK

Product Type | Silicone Flange Sealant

Chemical base | Alkoxy silicone

Number of ingredients | 1

Color | Black

Capacity | 50 ml

Time to surface dry | Approximately 25 minutes at 23°C and 50% relative humidity

Service temperature range | From -55°C to +200°C

Hardness | 44 Shore A

Elongation at break | At least 200%

Temperature resistance tensile strength | At least 1.5 N/mm²

Product code | 3004511

IDH Henkel | 2051993

EAN | 4058093026304

Sales unit | 1 tube 50 ml

This product is not recommended for use in systems containing pure oxygen or oxygen-enriched atmospheres. It should also not be selected for sealing systems containing chlorine or other strong oxidizers. Before use, consult the current Safety Data Sheet.

The product should be stored in the unopened original packaging in a dry place. The optimal long-term storage temperature is between +8°C and +21°C. Temperatures below +8°C or above +28°C may adversely affect the product's properties.

Once removed from the packaging, do not return the material to its original container.

Frequently Asked Questions

Is Loctite SI 5970 an acetoxy silicone?

Is Loctite SI 5970 suitable for sealing oil pans?

Yes. Oil pans and pressed sheet metal covers are typical applications. The sealant provides very good resistance to engine oils.

Does Loctite SI 5970 replace a traditional gasket?

It can replace appropriately selected cut gaskets. However, before use, check the joint design, the size of the medium gap, and the operating conditions.

How long does it take for the product surface to dry?

Under the conditions specified by the manufacturer, the product achieves a dry surface after approximately 25 minutes.

Is Loctite SI 5970 suitable for joints exposed to vibration?

How many tubes are included in the price?

The price is for one 50 ml tube of Loctite SI 5970. The product is sold individually.

Color: nan Size: 50 ml