Applications

LOCTITE® AA 5820 – Polyacrylate Gasketing Sealant – Flange sealing in engines, transmissions, axles, electronics

  • Item Name: LOCTITE® AA 5820™ (Known as LOCTITE® 5820™)

  • Manufacturer: Henkel

  • Technologies: Formed-In-Place Gasketing, Polyacrylate, One-component

  • Color: Dark grey paste

  • Cure Type: Moisture cure

  • Package Size: Contact to Techniq VN for details.

  • Shelf Life: 9 months

1. Product Overview

LOCTITE® AA 5820™ is a one-component, oxime-free polyacrylate sealant designed for formed-in-place gasketing. It cures with moisture at room temperature into a flexible elastomer. With its dark grey paste form and non-sagging consistency, the product provides excellent sealing, high joint movement tolerance, and superior resistance to hot oils and hydrocarbons. It is non-silicone based, preventing foaming in lubricants and ensuring compatibility with automotive and electronic components.


2. Applications

  • Flange sealing for engines, transmissions, and axles.

  • Sealing cast metal, stamped steel, and molded plastic covers.

  • Housing seals for electronic components (plastic and metal).

  • Effective in powertrain environments requiring oil resistance.

3. Typical Properties

Property Condition Value
Uncured Appearance Dark grey paste
Specific Gravity (20 °C) 1.29 – 1.37 g/cm³
Extrusion Rate (6.2 bar, 3.2 mm) 20 – 60 g/min
Skin Over Time 25 – 45 min
Cure Rate 3 mm / 24h
Cured Hardness (Shore A) 25 – 35
Tensile Strength 1.3 MPa
Elongation at Break >175%
Alclad Lap Shear (1 week) 0.8 MPa
Alclad Lap Shear (2 weeks) >1.0 MPa
Cohesive Failure (Aluminum) 100%

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