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Choose the Right Adhesive the First Time

Date:16-01-2017

It becomes a bit difficult for you to select a suitable Hot Melt Adhesive because there are plenty of types available in the market. There are quite a number of issues that you will be obligated to consider if the right choice is to be made.

White Glue

  • Also known as polyvinyl acetate (PVA).
  • A non-waterproof adhesive used mostly for interior woodworking jobs where a waterproof joint is not required.
  • Usually packaged in plastic squeeze bottles, these inexpensive, milky-white glues dry clear and are fast setting.
  • It can be used to bond paper, fabric, cardboard, cork and leather, as well as wood.
  • Can withstand a moderate amount of strain and cleans up easily with soap and water.
  • Non toxic and non flammable.

Epoxy

  • One of the strongest adhesives known, epoxy is designed primarily for the bonding of non-porous surfaces, but can also be used effectively on wood.
  • Available in clear, white or metallic finish.
  • Most epoxies come in two parts: a resin and a hardener (or “catalyst”) which must be mixed together before the adhesive is used.
  • Once mixed, the material will set permanently in a specified length of time—most will permanently bond, even under water.
  • The bond will withstand most solvents when curing is complete.
  • Excellent for sealing gaps and will withstand vibration and shock.
  • Can be used on pipes, radiators, wood, metal, ceramic tile, china, marble, glass and masonry.
  • Since epoxy is toxic and flammable, use extreme caution when handling.

Polyurethane Glue

  • Is a one-part adhesive offering the strength of an epoxy without mixing.
  • Generally requires 4 to 24 hours to fully cure, but it does bond to most materials.
  • Cures in the presence of moisture, so wetting one or both materials to be joined is required.
  • Good for a bond between either similar or dissimilar surfaces an is commonly used in woodworking.
  • Waterproof, sandable, paintable and stainable.

The Environment in Which the Adhesive will be Used

It is an essential consideration when you choose an adhesive. While most of the common adhesives will work perfectly indoors the same can’t be said of their performance outdoors. This is of course due to environmental factors like humidity, moisture, and varying temperatures. It therefore requires you to buy wisely with the type and location of job being the main determining factors of your purchase.

How Do I Apply the Adhesive Properly?

You should tidy up the materials surface away from dust, dirt, grime and grease. The surface should also be dry.

Read and follow the adhesive manufacturer’s instructions carefully to make sure that you get the best bond between your two surfaces. Then apply the adhesive evenly onto one surface only, using a notched trowel.

Slowly and carefully bring your two surfaces together, clamping them in place if appropriate. If you have split any adhesive it is essential to remove it immediately with a damp cloth before it sets. Next (and this is almost the mort important step), leave the surfaces alone for at least 8 hours, preferably 24 hours. This will ensure that the adhesive on material has totally set.