4.5.1 Effect of the Environment

As the environment to which an adhesive bond is exposed can degrade the adhesive’s polymeric structure, influencing the cohesive bonds or undermining the bond with the surface, it is necessary to evaluate the environmental conditions and the mechanical forces to which the joint will be exposed.

Adhesives may see varied outdoor climates, such as semi-arid, tropical and coastal climates. Specific standards are designed for gauging the effect of these conditions, real-time or simulated, on bonded assemblies. Aside from external environments, the application can impose severe conditions. Extremes in major appliances like ovens, freezers and dishwashers, and in automotive engines, aerospace and medical device sterilisation should all be anticipated and tested before an adhesive bond is green-lighted for production. It is important to test both environmental and physical stresses concurrently, as the additive effect may be more severe than each individually. The good news is that adhesives are so versatile that there are choices for almost every situation. Adhesive manufacturers and distributors can provide expert advice on applying adhesives in extreme environments.

Table of contents


have already
signed up

Award winning manual

Platinum Award for LOCTITE®X Digital Manual

The Digital Manual is for professionals by professionals

The manual is made entirely for you. However, if you’re still not convinced that free industry knowledge is for you, take a look at these user testimonials from the users of the manual.

"The topics are such that I can help take design related decisions very well at work. It's an interesting and knowledgeable read, I recommended my other colleagues to have a look at the manual as well."

Hanumant, Production Incharge

"The manual's chapters significantly enhanced my comprehension of various engineering topics. The manual adeptly presents explanations and examples of concepts, showcasing a high level of clarity and effectiveness in its content."

Tejas, Mechanical Engineer from a renowned Engineering College

"The release of this manual by a renowned brand such as Loctite has proven to be highly motivating for students. Its authentic content serves as a source of inspiration, encouraging students to engage actively in reading and learning."

Padmakar Deshmukh, Professor at an Engineering College