LOCTITE 5999

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

LOCTITE 5999

Main features

  • Blow-Out-Resistant Powertrain Gasketing
  • Non-Corrosive Silicone Gasket Sealing
  • Thixotropic Powertrain Gasket Application

Product Description

LOCTITE SI 5999 is a one-component grey oxime RTV silicone gasketing sealant for automotive powertrain service, manufacturing and rebuild operations. The thixotropic paste reduces migration after application and cures by room temperature vulcanizing. The sealant is non-corrosive and blow-out resistant. Typical uncured specific gravity is 1.45 at 20 deg C, while the cured material reaches at least 2.4 N/mm^2 tensile strength and at least 100% elongation after one week at 25 deg C and 50 +/- 5% RH.

Key features

  • Powertrain gasketing: Designed for automotive powertrain service, manufacturing and rebuild operations.
  • Blow-out resistance: The non-corrosive sealant resists blow-out.
  • Thixotropic application: The paste reduces migration after application to the substrate.

Applications

Automotive powertrain gasketing in service, manufacturing and rebuild operations.

Product Family

LOCTITE 5999

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Grey paste
Chemistry Type
Oxime silicone
Solids
94 %
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.45
Other Properties
Storage Temperature
8 °C to 21 °C
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
≥100 %
Physical Properties
Extrusion Rate
50 to 200 g/min
Tack-Free Time
≤30 minutes

Additional Information

Technical properties

As supplied

PropertyValueUnitMethod / condition
Specific gravity1.4520 deg C
Solids / non-volatile content94%As supplied
Extrusion rate50 to 200g/minSemco cartridge; 0.62 MPa; 15 seconds; 25 deg C
Technical properties

Cured material

PropertyValueUnitMethod / condition
Shore hardness45 to 75Durometer AISO 868; cured 1 week at 25 deg C and 50 +/- 5% RH
Elongation100%Minimum; ISO 37; cured 1 week at 25 deg C and 50 +/- 5% RH
Tensile strength2.4N/mm^2Minimum; ISO 37; cured 1 week at 25 deg C and 50 +/- 5% RH
Lap shear strength2.1N/mm^2ISO 4587; aluminum; cured material

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