We use RTV silicones in our assembly operations, and our workers keep complaining about the strong vinegar smell. Somebody told me that we might be able to get low-odor, low-volatile silicones. What issues should we be aware of?
Room-temperature vulcanizing (RTV) silicones are well-known for their extreme durability. They are convenient one-component sealants that cure by reaction with moisture from the atmosphere.
Pressure-sensitive adhesives (PSAs) offer easy application and secure bonding, including adhering wound care dressings to skin. Skin is a variable substrate, however, and consideration must be given to various skin types to ensure dressings can be securely attached and easily removed without skin damage.
Bonding polystyrene foam to steel and wood is an application that was traditionally done with contact cements or other solvent-based adhesives. Due to health and flammability concerns, however, the modern trend is to use 100% reactive systems.
When manufacturers are looking to use adhesives in an assembly operation, three steps must enter into the decision process: suitability, compatibility, and capability.
According to a recent report from Grand View Research, the global chemical distribution market was estimated to be $247.1 billion last year and is projected to see robust growth (5.4% CAGR) to 2028. The distribution of specialty chemicals, such as those used in CASE (coatings, adhesives, sealants, and elastomers) and other sectors, is expected to be the fastest-growing segment of the market, reaching $139 billion in that timeframe.
We manufacture PTFE and other fluoroplastic parts. We have been requested to make parts that can be bonded to metals. Is there a good adhesive, some sort of additive to the PTFE, or a surface treatment that we can use?
Polytetrafluoroethylene (PTFE) is a high-performance plastic used in a variety of industries, particularly for its heat and chemical resistance and “non-stick” properties. However, PTFE has a low surface energy that does not allow adhesives to wet its surface and subsequently bond.
Called thermoset polyesters, these materials are glass fiber-reinforced unsaturated polyesters. They are also often referred to as “sheet molding compounds” (SMCs), “fiber-reinforced plastics” (FRPs), or simply “fiberglass.”
Dr. Dave tackles two questions this month, one related to package stability for moisture-sensitive urethane adhesives, and the other regarding epoxy adhesives.
Question: My colleague and I are working on a unique challenge of trying to find a solution for manufacturing urethane-based adhesives that are quite sensitive to moisture exposure.
Brands have long relied on their products’ packaging to draw the consumers’ eye and entice them to consider a purchase. But packaging has evolved beyond eye-catching graphics to encompass so much more, particularly as consumers continue to explore “green” products and services with the goal of helping to address climate change.