If you need a glue that is known for its strong bond and structural strength, then an epoxy glue may be the choice for you. This glue is very versatile and can be used on metals, plastic, ceramic, wood and many other surfaces. This adhesive is waterproof, resistant to frost and heat and is great for filling in gaps or voids between parts.
Epoxy is a copolymer that comes in two parts that you mix to create the adhesive, a hardener and a resin. It’s important to know how to use and remove epoxy correctly if you want to get the job done right. The curing time for the mixture can vary depending on the thickness of the applied adhesive and the ambient temperature. Vapors from the epoxy can be dangerous so it’s best to use it in a well-ventilated area.
Mixing the Epoxy Adhesive
When you are mixing the epoxy resin and hardener, it’s important to follow the manufacturer’s direction and use the correct ratios for each element of the adhesive. To help assure that the measurements are exact you can use mini pump systems that dispense just the right amount of both epoxy and hardener. After the product has been dispensed into a small container, use a mixing stick to thoroughly blend the two items quickly. The clock starts ticking on the hardening time as soon as you create the mixture.
Preparing the Surface
One of the most important steps in the glueing process is to make sure that the surfaces you want to join are properly prepared. When you are joining porous elements you primarily need to sand them and make sure they are dry and free from dust. Epoxy is a great adhesive to use with wood. Non-porous surfaces such as metal or plastic may need to be degreased, then dried and roughed by sanding or etching. Acetone is often suggested as a default cleaner. Be careful when handling the cleaned items because contamination can occur from fingerprints or even gloves that are not clean.
Glueing Surfaces with Epoxy
Before applying the mixed epoxy to the items to be glued, it’s best to do a dry run to be sure that the items are a close fit. Once that is assured you can use the mixing stick to apply the resin and hardener formula to both of the surfaces. It’s recommended that you put pressure on the glued items by using clamps or something similar to join them together while the epoxy is hardening. By following all of these steps you will be able to create great DIY items like this custom coat rack.
Best Ways to Remove Cured Epoxy
Occasionally you may have a need to remove cured epoxy and separate the two items that have been joined. Although epoxy forms a very strong bond this task is possible if you know what to do. If there is only a little bit of epoxy to remove then sanding or scraping will work. Acetone is a good option if you are working on concrete or wood, but you need to make sure you are in a ventilated area. The next step up is to try using a heat gun to soften the epoxy or applying chemicals.
Epoxy is one of the most versatile and powerful adhesives on the market. By carefully following the manufacturer’s instructions and following these tips for mixing, preparing the surface and doing the glueing you will be assured that your epoxy glue works exactly as planned.