Marcus Chen
Teachers and students often face the challenge of hanging decorations and educational materials on classroom walls, which are often made of painted cinder blocks. While cinder blocks are porous, making it difficult for tape to stick to them, there are several temporary methods for attaching items to these walls.
| Characteristics | Values |
|---|---|
| Adhesives | Hot glue, Painter's tape, Mounting tape, Gorilla tape, Poster putty, Sticky tack, Museum wax, Mavalus tape, Gorilla double-sided tape, Stikki clips, Velcro, Command strips, Hooks, Display strips |
| Preparation | Clean the surface with alcohol, Use fine grit sandpaper, Use a tack cloth, Laminate posters |
| Considerations | Temperature, Humidity, Weight of items, Surface porosity |
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What You'll Learn
Hot glue guns
When using a hot glue gun, it is important to consider the temperature of the glue. Low-temperature hot glue guns are generally preferred for two reasons. Firstly, high-temperature glue can peel paint off the walls and can be difficult to remove from posters or other items. Secondly, low-temperature glue guns reduce the risk of burns. Even when pressing a poster to the wall, the glue from a high-temperature gun can remain hot enough to burn the skin.
To increase the holding capacity of hot glue on a cinder block, consider using construction-grade hot-melt glue sticks. However, this will also require the purchase of a high-temperature hot-melt gun.
For those concerned about potential damage to posters or other items, one trick is to put a piece of painter's tape on the wall and on the back of the item before applying the hot glue. This allows for easy removal without damaging the wall or the item.
Hot glue can also be used in conjunction with other adhesives. For example, some people use hot glue to attach Command hooks or strips to painted cinder blocks, as the glue provides a stronger hold than the adhesive strips alone.
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Mounting putty
Gorilla Mounting Putty can hold up to 2 pounds and is suitable for use on painted walls, posters, and more. It is important to note that it should not be used on freshly painted walls or where injury could occur if the mounted item fell. To use Gorilla Mounting Putty, ensure that both surfaces are clean and dry. Remove the desired amount of putty squares for application and apply them directly to the object being mounted, allowing for even weight distribution. Press the object firmly in place for 30 seconds to allow the putty to conform to the surface and create a strong bond.
Tombow Xtreme Putty is another option for mounting putty that can hold up to 13 pounds. It is a high-performance, reusable adhesive tack that can be used for indoor and outdoor projects. It is easy to remove and knead, fast-curing, and non-toxic.
When using mounting putty, it is important to keep in mind that it may not work well in hot and humid environments, as the putty can become weak and droop. Additionally, mounting putty may leave a faint mark on porous surfaces.
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Velcro strips
Before applying Velcro strips, it is important to ensure that the wall is freshly cleaned and dry. Alcohol wipes are recommended for cleaning, as they dry quickly. If there is dust or residue on the wall, the Velcro strips may not adhere properly.
One side of the Velcro strip can be left on the wall all year, and you can easily swap out posters or other items by attaching them to the corresponding Velcro strip. This makes it easy to change up your decor or display without damaging the wall or paint.
It is worth noting that Velcro strips may not work as well if the paint is fresh or if the surface is uneven. Additionally, if the Velcro strips are too sticky, they may peel off the paint when removed. To avoid this, ensure that the paint is well-seasoned and consider using Velcro strips that are not extremely sticky.
Overall, Velcro strips provide a convenient and damage-free way to temporarily stick items to painted cinder block walls, especially when combined with other adhesive products like painter's tape.
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Display strips
One popular brand of display strips is Command Strips, which can be found at most retailers. When using Command Strips, it is important to prepare the wall before application. Clean the wall with rubbing alcohol and let it dry. If the Command Strips still do not stick, try using fine grit sandpaper (800 grit) on the wall, then wipe the spot with a tack cloth to remove any remaining dust before applying the strip.
For hanging posters, it is recommended to put a piece of painter's tape on the wall and on the back of the poster before applying the display strip. This will protect the poster from tearing when it is removed from the wall. Additionally, laminating posters can help them last longer and prevent damage from the adhesive.
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Stikki clips
Overall, Stikki clips are a convenient and reusable option for temporarily sticking lightweight items to painted cinder blocks without causing damage to the surface.
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Frequently asked questions
There are various methods to stick things on a painted cinder block, including mounting putty, display strips, and hooks with a thin foam backing. However, the best method for you will depend on what you are hanging, the weight of the object, and the temperature and humidity of the room.
Blue painter's tape is often recommended for use on painted cinder blocks as it is strong and long-lasting, but gentle on paint. If you want something stronger, you can use a stronger tape like Gorilla Tape over the blue painter's tape.
Display strips are perfect for sticking lightweight things to painted cinder block walls. They are made of lightweight fabric, are easy to remove, and can be moved to another location.
To hang posters, you can use painter's tape, putty, or Stikki Wax dots or clips. If you want something stronger, you can use hot glue. However, be aware that hot glue can warp paper, so it is best to put the glue on a piece of painter's tape on the wall and on the back of the poster.
Landscape block adhesive is a paste-like heavy-duty exterior adhesive that can be used for attaching medium-weight items of up to 50 pounds to a cinder block.
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