About this deal
Solvent-borne adhesives can be used for pressure sensitive applications and removed by heat or solvents. They have long open times and excellent initial strength, which is useful when assembling large or 3-dimensional products. Many application processes can be used in a wide temperature range. They do require vapor control and sometimes flammability controls. The two most important characteristics of any adhesive are its ability to withstand loading and the strength of its bond to the surface to which it is applied. Adhesives that can withstand high loads, around 1000 lbs. per square inch, are referred to as structural adhesives. Adhesives with less bonding power are termed non-structural adhesives. The latter adhesives exhibit low shear strength, high creep and are sensitive to adverse environmental conditions such as high temperature, solar radiation and solvents. They are also referred to as holding adhesives . Applications for Non-Structural Adhesives
Water-borne adhesives offer several open times from short to indefinite and can be removed without chemical solvents. Their initial strength is moderate and drying times longer compared to solvent-based adhesives, but they have wide application temperature ranges. They must be protected from freezing. Examples of temporary adhesives include wood glues, elastomers, silicone sealants and pressure sensitive tapes or films. How Removable Adhesives Work
Determining the most appropriate removable adhesive depends mainly on the requirements for its usage, but also on other factors: Often, removable adhesives are used for positioning parts to be bonded by other means. High creep, low resistance to temperature or solvents, all characteristics detrimental in a structural adhesive, are desirable when the adhesive is used as a positioning aid during product assembly. Open time and initial bond must also be considered. Three types of elastomer adhesives offer different properties for removable bonds: For reasons of hygiene and safety, personal grooming products, cosmetics or items of intimate clothing cannot be returned. We can help you determine the best removable adhesive for your application. Give us a call today to get started. Non-structural adhesives are most useful where a temporary bond of low to medium strength is required. They add value in a number of applications:
Unwanted Food or Drink Products - Once supply conditions are broken, there are a number of factors outside of our control that can affect the quality of a product. Therefore perishable goods such as food and drink cannot be returned. Hot-melt adhesives are 100 % solid, so no solvent is required for application, only heat. These come in a wide variety of formulations that offer short to indefinite open times. Initial bond strength is controlled by temperature of the adhesive and substrate. They have high water-resistance, so solvents must be used for removal. Their material cost lies between solvent and water-based adhesives