Saturday, March 7, 2009

Different Kinds Of Adhesives Used In Art & Craft!...

By Anna Meenaghan

Adhesives and which to choose for what purpose? There are so many in our stockists. These can be an actual paste or glue that we are able to stick with various surfaces. Which are the strongest? Synthetics glues are very, very strong. They harden easily and wear so well.

So now we go to their uses! The synthetic glues are probably the strongest resin. They seem to wear for ever and a day as they set rock hard without any actual shrinkage. Available in small tubes that can be used on various metals and surfaces, whether they be porous or non porous.

Polyester resins are pretty much the same as epoxies, with no shrinkage. When hardened they are good for glass fibre.

What about silicones you might ask? These glues can withstand high temperatures, are often used for electrical cables and are resistant to water. Whereas animal glues are derived from various parts of animals. Hide and bone go to make up glue cakes, not forgetting gelatine, used for cooking.

"Spray Mount" is a popular choice made by designers, which is an aerosol. Handy to use as it will create a fine mist, but before it sets, you can adjust your work. You are not left with stains and the substance is clear.

Very fine paper, even tissue, can be sprayed, with no risk of it tearing as it is only such a fine mist. You need to be aware of the fumes when using this highly flammable spray. So only do this when you have plenty of air circulating as you do not want to inhale the fumes.

You have various types of glues which can be applied for different purposes. "Spray Mount", for instance, can be used on all weights of paper. For fabrics, paper and card you need an animal glue.

Vegetable glues are used to fix card and basically any strength of paper. Epoxy resin will fix plastic, stone, wood, glass and metal. Cellulose glues paper, card, plastic and polyurethane. Polyester is used to stick plastic glass and metal. Urethanes will do a good job on rubber, leather, plastic, metal and wood alike.

Should you require a safe glue for your children to use, I would recommend Cellulose. These are not strong enough for glass, metal or fabrics, though they are ideal for use with card or paper.

Superglue - You spread finely on the two surfaces to be fixed together, this liquid has to then be left, to get sort of tacky. The resin will then evaporate.

When you have bonded together the surfaces they will not be moved. So this style of glue is very suitable for metal and wood, but certainly not glass. Simply the best adhesives for porous materials, metal and glass are polyurethanes.

I am sure that most people have used these at one time or another, and they have fantastic strength. These will practically bond anything, which is great, but not so great if they get on your skin.

Care is needed if you are using Superglue. I can honestly say this after it getting stuck to my own fingers, it is not something I would want to repeat. Don't let your children get hold of it. Glues used from animals and vegetables were used by the Egyptians, but beeswax was used way back in prehistoric times.

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