Ideally, every wall or floor that requires an image to be attached should be smooth, avoiding pedestrians walking and rubbing, and perfectly placed there for viewing. However, any print service provider (PSP) that installs these images knows that there is no perfect location at all when installing images.

Rough surfaces such as concrete or bricks, rugged surfaces such as tiles or carpets, and countless feet walking through them every day are real challenges that printers need to address.

Cleaning and testing

Start by cleaning the surface first. This is not just a quick wipe with a rag or mop. For hard surfaces such as concrete or brick, strong washing is required. Alternatively, you can use a chemical cleaner, but make sure that all traces of residue are washed away. If conditions are met, steam cleaning the carpet ensures an optimal surface for adhesion, which is an excellent method.

No matter what surface or no cleaning method, be sure to leave enough time for it to dry completely. The slightest moisture will have a serious impact on the durability of the material.

“Remember, images may not adhere well to surfaces with low volatility organic coatings,” said Joe Walton, Technical Services Engineer at 3M. “Therefore, 3M recommends using a cleaning solution for all surfaces instead of a strong cleaning, then using a sample of the material used to print the image at 60 cm x 60 cm, and performing the same process test at the pasting position one week in advance.”

This test is just as important as the cleaning process. When selecting materials, it is best to get advice on the product from the supplier and perform a large-scale test on the actual surface to be pasted. You can use a blank product to post it in a lower position and test it. One week.

After starting the test, there are several key features to consider. Want to see if the edges are stuck, are they curled up or loosened? When removing the test sample, it is too much effort to see if the product is removed from the surface. If it can be easily removed, then you know that you have to choose a product with stronger adhesion.

Choose the right material

The type of film chosen depends on a number of factors. Avery Dennison Technical Services Representative Joey Heiob said. “Selecting the right film for the image of the floor surface requires two aspects, whether it is smooth or textured, and how long it takes to hold it in place. In nature, calendered film is more than cast film. They are thicker, so they are better able to withstand the treads that come and go. Recommended calendered films are used for smooth surfaces and cast films are used for textured surfaces."

Heiob: "If the image is to be mounted on a carpet, you can choose to use a permanent adhesive. If you want to install a temporary image on a tile or laminate floor in a grocery store, you may want to choose a removable adhesive for easy cleaning. Quick replacement."

Mactac's Jason Yard believes that when selecting the right material for a job, the printer should remember three main points: length and material warranty time; whether the material properties are compatible with the printer's equipment; the film's printability and post-printing Processing options. “The ability to attach and maintain adhesion to rough concrete or asphalt surfaces is critical. The most important thing is their slip resistance, which is tested using the latest methods.”

The type of printer used is also a factor to consider, Clementi said. “You can choose a water-based printer and materials, but strictly need a laminate to protect it. Solvent-based or latex-based materials and printers are more durable and provide longer-lasting products. For projects that require more protection and lasting results, We recommend using at least solvent and latex inks."

Print service providers need to ensure that they follow the guidelines of printers and self-adhesive material manufacturers. Includes printing ink count, drying time, lamination speed and pressure, and regulations that ensure optimum performance. Selecting and combining UL approved slip resistant coatings also helps reduce the likelihood of slipping while walking on the image. ”

“For rough, high flow or uneven locations, it is important to consider what type of passenger traffic is to pass above this area, what type of flooring (tile, wood, waxed, unsealed or After sealing the concrete), how deep the grout line is, how long they want the image to last,” Walton pointed out. “Adhesion is a key factor when choosing the right film for the floor pattern. Loose edges or bends can cause it to fall. According to OSHA, any type of floor image must be treated with a non-slip coating.”

Installation is very important

When installing, there are some different methods to consider depending on the type of material and surface. For rough surfaces, heating is a good choice. Rough walls, which require heating and roll coating, generally require the vinyl material to be melted so that it fits well with the bricks.

If the image is cut into multiple pieces, Clementi suggests using a masking technique. “If the image you are using is divided into sections in a contoured cut, the easiest way is to buy a roll of masking tape,” he said. “Then you will stick the masking tape to the front of your image so that you can remove the product from the substrate and attach it to the masking tape for a good alignment.”

For the mounting image to be a single, fixed shape, he recommends using hinge technology instead. “You can split the image to be installed in half, place it on the floor and place it in the desired position, then use two masking tapes to attach this length of image from the top to the bottom of the image. Then, you can peel the product from the substrate by about 7~10cm on your left side, don't worry about the graphics moving when you install it. Take a razor, remove the substrate from the 7-10cm, and then use The middle seam attaches the product to the floor, making it from right to left."

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