Over the years, one can see that the engineering plastics have largely replaced the metal die castings which due to the cost savings and the broad versatility of the molded plastic components are adhered to. Also in the field of the plastic products, the Environmental Stress Cracking (ESC) which is a common quality problem. The dynamic consequences of the relative failures are often looked upon and also very random in this kind of rubber and plastic seals.
When the football helmets which were first molded in the polycarbonate, where they performed well. The strong as steel and also very versatile in the coloration. However, in the main field they failed due to the street cracking. According to the research it has been found out, that the reason it started cracking was because of the adhesive stickers with the aggressive chemicals that attacked the polycarbonate. The stickers with the wrong adhesive are very detrimental to the whole cause. Also, today the helmet seals are continually made of the polycarbonate but also with the proper attention to the adhesives and the cleaning agents.
The lubricants, mating rubber seals & O-Rings which need to be compounded and also are fully chosen for the use with street-sensitive plastics.
It’s believed that not all rubber seal ingredients are suitable for the use with the engineering plastics and also even very small percentage of the ingredients in the O-Rings or the rubber seals a leave an influence on this specialized plastic components. Also the simple exposure of the stress sensitive with the plastic components to a rubber item which are made with the incurrent ingredients and also can start the stress cracking procedure with the eventual failure occurring.
How one can ensure that the plastic products are safe from the random problems?
When it comes to the rubber seals, the plastic component designers really need to specify the O-Rings, the rubber seals or else the gaskets which really do not utilize the ingredients that cause the whole stress cracking. The O-Ring and the rubber seal manufacturers with the compound development capabilities and also collaborative supply chain which can recommend and provide the rubber products that can be safely used with these plastics.
Also, after obtaining the proper rubber seals, or the O-Rings for the designs that really don’t mean the dramatically higher costs or the longer lead time. Also it just mean the closer collaboration with a seal manufacturer who knows what your specifications are and also enlist your major wants accordingly. An experienced and well-built O-Ring or the rubber seal manufacturer should have a number of elastomers which are liable for the use with the plastics and the ability to develop the special color and particular performance elastomers for the new and exciting designs.
Thus, these are the reasons and also meaningful procedures where one needs to be very vigilant in order to carry out the whole process of choosing the best rubber and plastic seals. Thus, for the kitchen appliances and other things which require one to buy the basic seals.