Test Method for Evaluating Durability of Building Construction Sealants by Laboratory Accelerated Weathering Procedures
Also Known As:
The ASTM RR:C24-1057 standard is a standard that provides guidelines for assessing the durability of sealants used in building construction. The standard is based on an interlaboratory study conducted in 2009, involving three participating laboratories.
The study focused on evaluating the bond in adhesion and cohesion, as well as the presence of cracking, crazing, chalking, and discoloration in sealant materials. Observations were recorded on a scale from 0 to 5, with 0 representing no observed change and 5 indicating excessive change. The study involved triplicate specimens of four different sealant materials.
Observations were made regularly every 4 weeks, starting from the 4-week weathering/movement cycle, and continued up to the 48-week weathering/movement cycle. Afterward, observations were made less frequently. However, it is important to note that one of the participating laboratories ceased reporting all observations after Week 28, while another laboratory stopped reporting data after Week 32.
More detailed information about the ratings reported in the study can be found in ASTM Research Report No. C24-1057.
| Language(s) | English |
| File Size | 1.8 MB |
