Loctite 128068 Flange Sealant

Loctite 128068 is a one-component, ready-to-use, gel-like anaerobic flange sealant. Once applied, the product cures at room temperature when isolated from air, making it perfect for form-in-place gasket applications. The slow curing process ensures minimal shimming between flanges. Loctite 128068 provides immediate resistance to low pressures after flange assembly.

Loctite 128068 flange sealant is ideal for close-fitting joints between machined, rigid metal faces and flanges. Its semi-flexible composition allows it to accommodate minor flange movements without compromising the seal. Typical applications for this Loctite flange sealant include transmission housings and axle covers.

• Very slow curing flange sealant
• Medium strength, high viscosity
• Instant low pressure seal
• Fluorescent for quality control
• Semi-flexible

How to use Loctite 128068 Flange Sealant

1.   For best results, bond surfaces should be clean and free from grease. We recommend a parts cleaner such as Loctite SF 7200

2.   The product is designed for close-fitting flanged parts with gaps up to 0.1mm.

3.   Apply Loctite 128068 Flange Sealant manually as a continuous bead or by screen printing to one surface of the flanges.

4.   Low pressures can be used when testing to confirm a complete seal. Perform test immediately after assembly and before curing.

5.   Flanges should be tightened as soon as possible after assembly to avoid shimming.

Storage

Store Loctite 128068 Flange Sealant in the unopened container in a dry location. Optimal storage: 8°C to 21°C. Storage below 8°C or greater than 28°C can adversely affect product properties.