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Glue Guru Articles And Features
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12/05/2010
WHAT IS CONTACT ADHESIVE?
Contact cement is an adhesive, which, when coated on two mating surfaces and allowed to dry, provides an instant permanent bond when brought into firm contact. While contact bond adhesives are widely used for bonding decorative laminates to substrates, they are almost a “universal” general purpose cement, and will bond a variety of substrates to one another such as wood, leather, metal, etc.
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23/11/2009
WHAT IS HOT-MELT ADHESIVE
Hot-melt Adhesive consists of a mixture of thermoplastic resins and polymers. Hot-melts are solid at room temperature but when heated to about 150 – 180 deg C, they form a hot sticky liquid which produces fast setting, gap filling bonds with many types of substrates as the adhesive cools back to room temperature and re-solidifies. More... -
04/02/2009
The multi-national adhesives/chemicals industry is responding to the pressure to produce and comply with the demand for environmentally friendly products. This has resulted in leading adhesives companies in the USA, like Borden Chemicals, looking again at the 'shape of the wheel' metaphorically speaking. It appears that some of the old adhesives technology from yesteryear is about to receive a resurrection. Borden, and other industry leaders, have been conducting extensive research into 'Soybean'. Soy by-products will help propel them into the next millennium as adhesive market leaders. Soy-based adhesives are again being revisited by the industrial chemists to help further develop adhesives that comply and offer an ecological means to significantly reduce VOCs in woodworking glues. More...
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10/11/2008
Retrospective: Earlier we discussed the 'history of adhesives'; and how 3000 years ago adhesives were made from blood, bone, hides, vegetables, eggs and milk, which are all protein based and the backbone of adhesives and that these adhesives were called natural adhesives. Then we learnt how the demand for better adhesives, and the special needs and chemical advances made as a result of World War II, resulted a secondary category of specialty adhesives being developed, which were called synthetic resins - synthetic, in that they are produced chemically. More...
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Like the alchemists' attempt to transmute base metal into gold, so much human effort has also gone into the search for the perfect glue. This goal is probably as unrealistic at the dreams of alchemy, for those inventors of many of todays commonly used adhesives; this has not been made without considerable reward. More...
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10/09/2007
In this page, we explain the most common types of woodworking adhesives, how they work and what results to expect when you use them. More...
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10/09/2007
The process of gluing timber together seems so simple that it's hardly worth discussing. After all there are only three steps involved: preparation of the joint surface ~ application of an adhesive ~ the clamping of the two parts together. It's so simple that we often take it for granted. This could not be further from the truth. Ignoring any one of these three basic principles can lead to a weak or failed bond regardless of the wood species, gap-filling ability or strength of the glue selected. More...
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There has been a trend recently in NZ toward the use of natural timbers and hardwood veneers, especially Maple from Canada and the USA. But BEWARE! A potentially troublesome Genie may have been let out of its bottle and could give you a few nasty headaches, more especially to those who are unaware of the different levels of "acidity" in wood. More...
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10/09/2007
The design of a sealant joint depends to a great extent on its function and / or on the industry that is using the sealant. For example, there are numerous types of construction joints including expansion and contraction, overlap, perimeter, and butt. They can be horizontal, vertical, or inclined. More...