Aging of adhesive sealants such as polysulfides and silicones is usually restricted to accelerated aging in ovens and other laboratory environments. A need for extended aging under actual outdoor conditions has long existed. This report describes the results of five-year aging tests on five different types of polysulfide and silicone adhesive sealants under various environments, including semi-arid and marine type outdoor aging sites. These are compared to oven aging and ambient shelf aging results. Data on continuous exposure for twelve months to high humidity with cycling temperatures is also included. The results indicate that a marine climate is the worst exposure condition. The results also show that a manganese peroxide cured to polysulfide is more sensitive to a marine climate than is a lead peroxide cured polysulfide.
Outdoor Aging of Adhesive Sealants
Sae Technical Papers
1971 Automotive Engineering Congress and Exposition ; 1971
1971-02-01
Conference paper
English
UV chamber tests outdoor sealants
British Library Online Contents | 2004
RTV Silicone Adhesive Sealants
SAE Technical Papers | 1971
|Silicone adhesive/sealants in composite headlamp systems
Automotive engineering | 1991
|Field Aging and Development of Aging Model for Hot-Poured Crack Sealants
Online Contents | 2015
|Field Aging and Development of Aging Model for Hot-Poured Crack Sealants
Transportation Research Record | 2015
|