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5th Edition, June 2018

Complete Document

Adhesive/Sealant Compound, Anaerobic, Grade 290

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Product Details:

  • Revision: 5th Edition, June 2018
  • Published Date: June 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Material Description. A green, low viscosity, wicking grade anaerobic dimethylacrylate polyester R:Sin base liquid compound that solidifies by polymerization (not by solvent evaporation) into a tough plastic when confined between closely fitted metal surfaces, producing an effective seal against leakage and medium shear strength resistance to loosening. This material may be used on slightly oiled zinc plated, black oxide, and phosphate and oil coated parts and still obtain satisfactory properties. For maximum properties parts must be cleaned. This material is intended for locking and sealing fasteners and studs for fluid pressure resistance or to prevent loosening under shock and vibration or a combination of both.

Symbols. Not applicable.

Applicability. This material is intended for thread locking and sealing small diameter fasteners (up to 10 mm) and studs for fluid pressure resistance, or to prevent loosening under shock and vibration or a combination of both. Typical uses include engine cover bolts.

A low viscosity material obtaining full thread locking strength with bond line thicknesses to 0.08 mm and seal with gap thicknesses to 0.08 mm using the Table 1 Pin and Collar test. The material curing time may be substantially reduced with accelerators or heat.

Temperature Use Range of -55 °C to +150 °C. Low temperature performance is based on maintaining 50% or more of the original minimum prevailing and breakaway torque after 2 h exposure (measure in 30 s or less). The low temperature test is not required for this standard. The upper temperature limit is based on Table 3 aging requirement.

Remarks. The words must, shall or will as used in this document mean a mandatory requirement.

Application of the product outside its use category as defined by GMW16800, Retaining and Sealing is strictly prohibited.

Pre-applied thread form coatings have better uniform coverage and are ready to assemble for automotive production build (see GMW14657). Liquid products are mostly used for service repair. Use of automated application dispensing system equipment designed for this product provides a measured uniform liquid coating. Contact the product manufacturer for equipment recommendations.

Finish Influence. Data in Table 1, Table 2 and Table 3 are based on standard test finishes listed in GMW16800. Production coatings and finishes are likely to provide different results.