Sealing and Coating Compound, Polyurethane (PUR) Fuel Resistant High Tensile Strength / Elongation For Integral Fuel Tanks / Fuel Cavities / General Purpose

Standard:
Revised:
  • 2016-10-24
 
  • CURRENT
Publisher:
  • SAE International
Pages:
11
Scope:

This specification covers polyurethane (PUR) in the form of two-component sealing compounds.

Rationale:

AMS3278B results from a Five Year Review and update of the Types of this specification. Revised Classification Types to distinguish non-corrosion inhibiting from corrosion inhibiting materials. Eliminated Class B-1/4 solvent free sealing compound and all related requirements. Removed Air Content requirement. Increased 14 day hardness to 50 Shore A. Removed Class B for Shear Strength Table 1. Revised Viscosity of Base requirement for Class A and Class B. Lowered the maximum viscosity for Class A Application Time.

History:
Standard Published Revision Status
AMS3278B 2016-10-24 Latest Revised
2008-01-03 Historical Revised
2004-07-19 Historical Issued
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