Hot melt adhesives have a long life and can be usually disposed of without any exceptional precautions. Some of the drawbacks include thermal load of the substrate, restricting usage to substrates which are not sensitive to higher temperatures and bond strength weakens at higher temperatures to complete melting of the adhesive. This can be reduced by the usage of a reactive adhesive that after hardening experiences further curing.
Hot melt glues usually contain of one base material with many additives. The configuration is typically made to achieve a glass transition temperature below the lowest service temperature and appropriate high melt temperature too. The degree of crystallization is normally high, however, within parameters of permissible shrinkage. The melt viscosity and the crystallization rate can be customized for the particular application.
As per a study by ChemQuest Group, UK has the 3rd largest demand for adhesives in Europe. The adoption of Hot melt adhesives can be categorized in Non-Pressure Sensitive Hot Melt Adhesives which have great demand in Packaging; Rigid Bonding and Non-Rigid Bonding industries while Pressure Sensitive Hot Melt Adhesives in the Packaging & Tapes industry.
With the industry and overall demands increasing, Hot melt adhesive suppliers have grown in substantial numbers over the last few years and internet is full of supplier listings which can cater to your need, no matter how large or small it is. These suppliers provide various forms of the hot glue like hot melt glue stick, pad hot melt adhesive, granule hot melt adhesive, pillow and block shape hot melt adhesive, which can be used with all type of glue guns and adhesive coating equipments.
The UK industry has matured to the extent that British Adhesives and Sealants Association in tandem with Sealant Manufacturers Conference have steadily joined hands to form Europe's only sovereign trade body committed exclusively to the welfare of the adhesives and sealants industry. This body helps its members by representing the industry and offering direction on technical and regulatory issues, providing opportunities to members for interacting with each other and providing members support services. BASA has 100 members which are companies and they jointly represent more than 80% of all UK's manufacturers of industrial sealants and adhesives.
All in all, if you are a packager or another user of hot melt adhesives for your own company, the options are many. The pricing for these adhesives is usually low-cost and since there is a lot of competition out there, you should be in luck to negotiate the best rate. While the internet has a lot of options available, the BASA website should be able to provide you with reliable options since they are backed by the association. Nowadays, hot melt adhesives have also found their way in domestic usage no matter what you'd like to stick, re-do your house, or work with a 'DIY' kit, the hot glue will constantly be your most dependable solution to achieve the task at hand. Nowadays, these glue sticks and guns used for domestic applications are available at very affordable prices on mostly all online and brick and mortar hardware stores. That said, please use it with caution and more importantly, keep it out of the reach of children. So the next time you think of an adhesive solution, check out the 'Hot Glue' and I am sure it will keep you sticking with it for many years to come.