Types Of Adhesives And Their Application
Adhesives, Loctite, paste or glue, are materials that are used as sealants. Adhesives play key roles in everyday life. It is almost as if daily activities will be paralyzed if these adhesives are not available.
There is a wide range of varieties of adhesives that are available on the market. It should not be difficult for anyone to locate these precious items for their use. What you need to remember, however, is that different adhesives are designed for use on different surfaces. What is more, the strength of these adhesives vary.
And of all the adhesives, synthetic resin glues are considered the resilient. And durable. They harden so well and smoothly. They can be used on different hard surfaces including metals. Synthetic glue can also fix both porous and non-porous materials. What is more, they become rock hard and would not shrink at any one time. If you need them for your sticking; you can always find them in tubes.
Then there are the polyester resins. They are pretty much like epoxies but will not shrink when used. When they hardened, they are ideal for glass fibre.
Silicones are also commonly used adhesives. Silicones can withstand high temperatures. They are resistant to water and are frequently used in electric cabling.
Then there are the adhesives that are derived from the animal products. Frequent ones are the glue cakes that are made from the hides and bones. Then there is the famous gelatin, an adhesive that is even used for cooking. Animal adhesive are used on fabrics, cards and even papers.
Then there are aerosols adhesives as well. They are usually available in low or moderate viscosity. They are designed to be applied or sprayed on the surface quickly so that the droplets land on the required surface before they dry up. Majority of these aerosols adhesives are dispensed using a spray gun or an aerosol can.
Designers frequently take advantage of these aerosol adhesives to cause an instant bond on the surface which they can reposition before they are set. One great advantage with the aerosol adhesive is that they are clear, stain-free and are very fine mist when they are sprayed. Even such a brittle paper can be sprayed, and it will not tear. One major disadvantage is that you need to spray in a ventilated area as the substance is highly flammable. You also need to be careful not to inhale the fumes – they can cause issues in your respiratory system.
The polyester resins are utilized in glass, plastics, and metals. Cellulose adhesives can be used in polystyrene, plastics, card, and paper. Urethanes can be used to stick metals, rubber, leather, wood and plastics. Lastly, the epoxy resins can be used to fix metals, stones, glasses, plastics and even wood. Vegetable glues will glue papers and cards.