With the wide variety of envelope options available, it’s obvious that they come with different sealing options. In this post, we shall look at the various envelope sealing options and how they compare to each other.
Let’s get started:
Self seal envelopes are known by many names, including strip seal, zip peal, super seal, etc. Besides being a popular type of envelope, it’s easy to use. Unlike other envelopes like gummed seals, this type of envelopes don’t require to be moistened when used – you know the yucky taste that comes with a traditional envelope, right?
Self seal envelopes have a sticky band on the flap, which is covered with plastic or paper. When sealing the envelope, you’ll be required to remove the protective strip before folding the flap and pressing it to form the bond. There are many types of self seal envelopes to select from, including large and windowed. Whichever the case, you can get a self seal envelopes that work best for you.
However, using self seal envelopes is not recommended in bulk mailing machines since they are not designed to handle the protective strip.
Think that gummed envelopes are the same as self seal envelopes? Definitely not. Gummed envelopes refer to the traditional type of envelopes that come with a water soluble gum. To seal this type of envelope, you’ll need to lick the water soluble gum. You’ll then need to press the flap to close the envelope.
Compared to self seal envelopes, gummed envelopes are relatively cheap. They are also the ideal choice when using bulk mailing machines. You only need to put the mail in the machine and the machine will do the rest for you.
Peel and Seal
Peel and seal envelopes are arguably the most preferred envelopes now. Even so, it can also be a little inconvenient if you are looking to seal many envelopes. Peel n seal envelopes are latex-based, and the latex is covered with a protective paper.
The two commonly used adhesives are cold melt and hot melt with a shelf life of 2 and 5 years respectively.
What About Flip and Seal Envelopes?
Flip and seal envelopes come with a latex adhesive at two locations, i.e. at the top flap and at the bottom along the envelope’s edge.
You’ll need to expose the adhesive strip before closing this type of envelope. After that, fold down the top flap to press the two adhesives together.
As with self seal envelopes, no moisture is needed when sealing the envelope. Even so, it doesn’t come with a protective strip.
Other types of envelope seals include:
This type of envelope comes without adhesives. You may want to use ungummed envelopes in an office or school where many people need to handle the documents. They are also suitable for legal size documents and other such documents.
You can also use them in informal stationery suites where the outer envelope needs to be sealed and stamped for mailing, but the inner envelope is left unsealed. It’s however, formally addressed to the recipient. Unless otherwise, it’s not advisable to use ungummed envelopes in the U.S. mail system.
Metal Clasp Gummed Closure
Metal clasp gummed envelopes offer two methods of closing envelopes: gummed seal and reusable metal clasp. Of course, the gummed seal requires moisture to close while the latter comes with prongs.
This type of envelope is commonly used when sending a larger booklet. It is also ideal for hand-delivery interoffice communication.
Also known as hook-and-loop tape, snaps are a type of envelope made of polypropylene. Snap seals are usually found on large sized envelopes or any other envelopes that need to be used repeatedly.
Since they come in different colors, you can use them to make a color-coded system for your organization.
So Which Seal is the Best?
As you’ve seen, you can use a wide range of envelopes in your office or home. The use of the envelope is the single most thing you need to consider when choosing an envelope seal. For instance, you may want to select peel and seal envelopes if you don’t have a regular need for envelopes.
Self seal envelopes may be ideal if convenience and reliability mean something to you. However, you may want to avoid self seal and gummed envelopes if you’re concerned about the security of your mail.
The bottom line is to ensure that the envelope you choose for your mail serves your purpose and ensures the security of your documents.