Tapes and Adhesives Archives

Latex Gloves – Are You Allergic?

Many industrial manufacturing environments require workers to wear protective gloves, including during electronics and medical device production and assembly. Latex gloves not only protect workers from harmful chemicals but also protect products from worker contact and contamination during manufacturing Read more

ST 925 SMT Rework System–Three favorites combined into one nice savings

Save a few steps--and some money--with the Pace 925 SMT Rework System Pace has introduced a new low-cost “combination” system ideal for surface mount technology (SMT) rework. It’s worth adding up the savings by comparing the a la carte prices Read more

Metcal’s CV-5200 Connection Validation Soldering Station Changes Everything

You may or may not have heard about Metcal’s new soldering station, the CV-5200. The evolutionary tool removes much of the reliance on visual inspection of hand-soldered joints and adds a second, more technology-driven method for validating a successful Read more

Types of Epoxy: General Purpose, Coloring Agent, and No-Mix

Posted on by Andy in Tapes and Adhesives Leave a comment

Loctite Epoxy AdhesiveWhen normal adhesives are not strong enough for your products, epoxies can give you the extra power you need. Epoxies are adhesives that typically come in two parts that are inactive when separated, but become strong adhesives when mixed. This allows epoxies to be higher strength than normal adhesives. This week and next we will be talking about a few types of epoxies.

General Purpose Epoxy

These epoxies are what you need if you want a strong adhesive that can work with most materials. General purpose epoxies come in a container that stores two chemicals separately, so you can mix them together when you are ready to activate them. Once activated, they will start the hardening process, so you will need to apply it right away. If you need an even stronger bond you can also get high-strength or ultra-strength epoxies!

Coloring Agents

If you have a clear epoxy, then you can use a coloring agent to make it match your product. This can make the adhesive blend in with your product, to make it more discrete. All you need to do to use the coloring agent is to mix it with your epoxy when you are activating it, and it will take on the new color.

No-Mix Epoxy

No-mix epoxy may seem contradictory, but in reality it just takes the concept of epoxy and tweaks it a bit. Instead of having two chemicals in a paste form that you mix to make an adhesive, you apply one paste chemical to your product and then spray it with an activator. This makes for a strong bond, but in a different way from most epoxies.

Have any more questions on epoxies? Leave a comment below, or call Customer Service at (800) 537-0351!

How do Epoxies Work?

Posted on by Andy in Tapes and Adhesives, Technical Articles Leave a comment

Double Bubble EpoxyEpoxies are very strong adhesives, used to bond two objects when normal glue will not work. Typical epoxies contain a resin and a hardener, which are inert on their own. Once you mix the resin and hardener they will start to become rigid, creating a tough bond between two objects.

Depending on the chemical make-up and the ambient temperature, the curing process can take from 5 minutes up to multiple hours. This allows you to select the epoxy with as long of a work-life as you need, so it will set fast or a longer period of malleability.

Many epoxies come in special syringe containers that allow for exact mixture ratios. These syringes can have plungers of different sizes to make it easy to get a 1:1, 2:1, or higher mix ratio for the most effective bond. Disposable mix nozzles are also available to automatically mix the epoxy as it comes out of the syringe.

Other epoxies that do not need exact mix ratios may come in small dual-pouch packets that can be cut open, squeezed out, and then mixed together to cure. This can also be useful if you do not need a large amount of epoxy, as once you use part of a syringe the rest of it will go bad faster than when it is sealed.

Have any more questions about epoxies and how they work? Leave a comment below!

« Previous   1 2 3 4