The Difference Between Cast and Calendered Vinyl

When working with adhesive vinyl there are two types of vinyl film you can choose: Cast and Calendered.

Cast Films

Cast Films are a premium-grade vinyl that starts life as a liquid, which is then spread out to an extremely thin layer.  Cast films will not noticeably shrink and will conform to irregular textures and curved surfaces, making them the best option for the most extreme outdoor applications – especially vehicle wraps.  Cast Vinyl provides vibrant, paint-quality color and the highest level of durability, lasting for years.

Calendered Vinyl

Calendered Vinyl begins as a lump of plastic that is then flattened by being passed through two pressure rollers.  Though not as high-quality as cast films, calendered film is adequate for less demanding conditions.  Calendered films come in two types: Polymeric and Monomeric.

Polymeric 

Polymeric calendered films have added polymers to reduce shrinkage, so they will fare much better in exterior applications than monomeric films but are not suitable for application over irregular surfaces.  For less demanding exterior work such as transit graphics that are frequently changed, polymeric films offer a workable alternative to cast.

Monomeric

The least expensive vinyl film is monomeric calendered.  Over time these films will shrink, collect dirt, and eventually curl up and flake off.  Monomeric films are best suited to short-term exterior applications or interior work.

These vinyl films can last anywhere from 6 months to 5 years or more, so it’s important to give us all the parameters of your install.  Talk to a GH Sales consultant or submit a QuickQuote so we can recommend the right vinyl for you.

4 Preflight Steps to Take Before Sending Large Format Print Files to GH Imaging

Before sending a file to GH Companies to be printed, there are some steps you should take to ensure that your file can be used for printing. These simple steps help ensure your art will be printed the way you intended it to and will also help expedite the printing process of your job.

Convert all Fonts & Text to Outlines

This is very important because if you don’t, it can cause your fonts to crash when the file is opened and be replaced with a computer’s default font.  Creating outlines guarantees your art and text will look exactly as you intended them to look. This can be achieved in Adobe Illustrator by selecting Type > Convert to Outlines (CMD + SHIFT + O mac or CTRL + SHIFT + O pc) while all the live text is selected. This changes the text into vector shapes instead of type. It will no longer be editable.

Art is CMYK

Ensure that the color of every part of your art is in CMYK color mode.  If colors are in RGB they will have to be converted which can result in an undesired change in color. This can be determined in Adobe Illustrator by selecting File > Document Color Mode and ensuring CMYK Color is checked.

Convert Strokes to Outlines

If using strokes in your design, convert your strokes to outlines.  That way, if your image needs to be resized it will still look the way you intended. This can be done in Adobe Illustrator by selecting Object > Path > Outline Stroke.

Embed All Images  

This saves the images into your file, ensuring that the computer can find it.  If not, the computer will replace the image with a blank box. This can be achieved in Adobe Illustrator by selecting the "Embed" button at the top bar of the file while the image is selected.

These simple steps will ensure that we can use your file and print your design exactly as you envision it.

The Difference Between Raster and Vector File

Every file saved on a computer has an extension after it.  A dot followed by letters that designate the file type.  It’s important to know the difference between some of the common file types.  With images and graphics, the most important distinction to know is the difference between Raster and Vector images. 

Raster Files or Bitmaps

Raster (or Bitmap) images are made up of pixels, dots of color that together form the image, similar to a mosaic. Photographs are always raster images, and most images you find online are likely to be raster too. Raster images will gradually lose quality as you scale them up, creating a low quality, pixelated appearance. 

The most common form of raster images is .jpg (or JPEG).  Most digital cameras will store images as jpegs by default, and most images found on the web are jpegs as well due to its small file size. 

PNGs and GIFs are similar to JPGs, but they also support transparency of an image.

Photoshop files, or PSDs, include the original layers of a Photoshop file to be edited, but can only be opened and edited with the Adobe Photoshop program.

Vector Files

Vector images do not use pixels.  Instead, they use math equations to determine how the image is formed.  Because of this, the image can be scaled up or down to any size without ever losing quality or becoming pixelated. 

EPS and PDF files are often used when saving vector images.  This is a great file type to use for large scale printing.

Two other ways to save a vector image are from the native file they’re created in .ai (an Adobe Illustrator file) and .cdr (a CorelDraw file).  These can be opened using Illustrator or CorelDraw as vector images and individual layers can be edited.

Keep in mind that these vector files can be opened with any image-viewing program, but will only remain vector images when opened with a vector-based program like Illustrator or CorelDraw.  Opening a vector image and saving it in a raster program (like the Mac’s Preview, Windows Image Viewer, or Photoshop) will rasterize the image.

When sending files to GH Imaging for printing, it is best to send files in a vector format to allow us to scale them to fit your printing surface without losing image quality.  Talk to your GH Sales Consultant for more information on file types and when to use them.

The Difference Between First Surface and Second Surface Decal Installations

GH Imaging offers clear vinyl decals in static or pressure sensitive forms. They are printed full color and are very easy to install. Graphics are always printed on the non-adhesive or static side

They can be applied two ways: First Surface or Second Surface.

First Surface

First Surface refers to applying a decal directly to the glass surface. The art is on the front side of the print. When standing outside, you view the print directly.

You can also choose to use a spot white underbase on your first-surface decal. This is a layer of white ink printed behind the art to make your design more vibrant while keeping the background transparent. A decal without the underbase isn’t as bright and can be slightly washed out from sunlight.

Second Surface

Second surface refers to applying decals to the interior side of glass. These will be viewed from the outside by looking through the glass. Second surface decals are always reverse-printed. Reverse printing is simply a mirrored image of the art so it can be viewed correctly from the outside once installed.

Second Surface decals can be printed with a spot white underbase or with a white flood coat. A flood coat is a layer of white printed over the back of the image. This is used when you want the whole decal needs to be white instead of the default clear.

To recap this are the 5 ways to produce and install clear window signs:

First Surface Install – No White Underbase

First Surface Install – With White Underbase 

Second Surface Install – No White Underbase

Second Surface Install – White Underbase

Second Surface Install – White Flood Coat 

Different Banner Finishing Options

At GH Imaging we have several ways to professionally finish your banners.  We will work with you to determine the appropriate finishing based on the time frame and application for your banner.  We’ll go over them in detail now.

Miller

Miller is the standard hem for all weld-able materials.  Using heat, speed, and pressure, Miller finishing produces a welded seam that fuses two materials together.  This will finish the ends of banners with hems or pockets for rope or poles.  This process is very durable, and perfect for use with banners that need to last a long time or will be used outdoors.

RF Weld

The RF Welder is a unique finishing process that fuses two materials together using a high-intensity radio frequency.  The result is an exceptional and durable edge to your banner.

Sewing

Sewing is used in variety of ways on multiple materials.  It is used to add hems and pole pockets for banners.  It is also used to seam vinyl or mesh to make a larger banner. Sewing is best used for fabrics, attaching Velcro, and when finishing non-weldable materials. 

Dye Sublimated Fabric Printing

Dye-Sublimated Printing (Dye-Sub) is a process that first prints ink onto fabric then the ink is cured/sublimated to the fabric. This creates a bond and the ink is now dyed into the fabric. It produces vibrant, full color prints. There is also dye-sublimation that transfers ink onto fabric and other materials using heat, but today we're just going over dye-sub printing for large format graphics.

This is a popular method use for trade show graphics, retail graphics and framing systems. Some products produced using dye-sublimated printing include flags, table covers, backdrops, banners and more.

Sail Flags

One of our most popular dye-sublimated products is the sail flag. These things are every where and that's because they're easy to assemble and dissemble, they can withstand windy environments and they grab viewer's attention. They're used at restaurants, car dealerships, retail shops and more. They're great to advertise sales, specials, new locations or just to draw attention to your business to bring in more customers.

GH Sail Flags are reverse printed, so the back side shows a reversed image of the front. The human eye naturally corrects this and views the message the same way as the  front side. This keeps the flag the perfect weight and prevents it from weighing down the hardware. So it will be able to easily swivel 360° degrees around the sail base.

Installing sail flags is a very easy task. The only tool you need is a hammer if you're using a ground spike base. A hammer helps you insert the base quickly into the ground. The rest is just putting the poles together and sliding them through the flag's pole pocket. Watch the video for complete installation steps.

Here's a Video on How to Install a Sail Flag so you can see just how easy it really is:

Event-Trac Asphalt & Concrete Street Graphics

What are they?

Event-Trac asphalt and concrete decals are exactly what they sound like, they're removable decals that stick directly to clean, dry concrete and asphalt. They are a great tool to get customer's attention and turn the ground into prime advertising space! Event-Trac's unique texture makes it slip-resistant, eliminating the need for an expensive over laminate. They are designed for short term use but they last anywhere from 2 weeks to 3 months or more depending on how much traffic and weather they're exposed to. To learn more about Event-Trac, click here!

Uses

Event-Trac is a great addition for a variety of events. It's a great way to promote, brand and provide sponsorship listings. Here are a few examples:

• Parades – Promoting the branding of the parade, listing sponsors, parade attendees and more
• Events & Festivals – Directional signage and labeling, sponsors, branding and more
• Races – Finish lines, starting lines, check points, sponsors, branding and more
• Parking Lots – POP promotions at retail centers, creative parking spots, branding, QR Codes and more
• Sidewalks – Sales and promotions, directional signage, foot prints leading to sales, creative scavenger hunts, QR codes and more
• Golf Outings – Sponsorship, competitions at holes, cart paths and more
• Stairs / Escalators
• Guerilla / Creative Marketing

Watch a video to see Event-Trac in action!