ASTM C1257-15
Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants

Standard No.

ASTM C1257-15

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C1257-15(2023)

Latest

ASTM C1257-15(2023)

Scope

5.1 It is difficult to establish a precise correlation between laboratory accelerated and natural weathering because of (1) geographical climatic variations, local weather variation from normal, and local pollutants and (2) the fact that the acceleration factor is material dependent, varying with the type of material as well as its formulation. This test method is used to determine the resistance of a sealant to laboratory accelerated weathering and, if a control material with known outdoor weathering performance is used, the relative weathering performance of the sealant against that of the control material.

5.2 This test method is conducted using aluminum channels. Other substrate materials may show different results.

1.1 This test method includes two laboratory accelerated exposure procedures for predicting the effects of ultraviolet or ultraviolet/visible radiation, heat, and moisture on color, chalking, cracking, and adhesion of solvent-release sealants.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.4 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.

ASTM C1257-15 Referenced Document

• ASTM C1442 Standard Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus
• ASTM C717 Standard Terminology of Building Seals and Sealants
• ASTM G113 Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
• ASTM G151 Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
• ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials
• ASTM G155 Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials*， 2024-04-20 Update

ASTM C1257-15 history

• 2023 ASTM C1257-15(2023) Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2015 ASTM C1257-15 Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2006 ASTM C1257-06a(2012) Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2006 ASTM C1257-06a Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2006 ASTM C1257-06 Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2004 ASTM C1257-04 Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 1994 ASTM C1257-94(2000) Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
• 2000 ASTM C1257-94 Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants