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As a crafter, DIY enthusiast or a homeowner trying to fix things up, hot glue is definitely your go-to adhesive. Its effectiveness and ease of use make it a valuable tool in any household. However, have you ever found yourself in a situation where hot glue just won’t cut it? Maybe you’ve tried to glue plastic materials together but to no avail. Or maybe you’ve even struggled to stick porous surfaces with it. Well, the truth is that hot glue is not the cure-all adhesive for every situation. In this article, we will explore the materials that hot glue won’t stick to, surfaces and textures that it struggles with, and alternative adhesives you can use instead. So, whether you are a seasoned crafter or just starting, this article will provide you with invaluable tips and tricks for using hot glue effectively.<\/p>\n

Materials That Hot Glue Won’t Stick To<\/h2>\n

\"Materials
\nIt’s frustrating when you apply hot glue to a surface only to find out that it won’t stick. You may be wondering why this happens or what surfaces are the most difficult to glue. Understanding the materials that hot glue won’t stick to is crucial for achieving successful projects. Whether you’re working with plastics, silicone, glass, or waxed surfaces, it’s important to know what types of materials to avoid. In this section, we’ll explore what materials hot glue struggles with, and how to best approach each surface. If you’re dealing with a different type of glue, check out our guide on how to remove Mitre Bond glue<\/a>, how to get glue stick out of a gun<\/a>, or other helpful articles that will suit your needs.<\/p>\n

Plastics<\/h3>\n

Plastics<\/strong> are one of the trickiest materials to use hot glue on. The reason for this is that hot glue is designed to bond with porous surfaces, and most plastics are non-porous. The glue will not bond well to the plastic and may even slide off. In some cases, the hot glue may stick to the plastic temporarily, but it will eventually lose its grip.<\/p>\n

To avoid this issue, it’s best to use an alternative adhesive for plastic materials, such as epoxy<\/a> or cyanoacrylate glue<\/a>. However, if you must use hot glue, there are some plastics that it may bond to more effectively. Check out the table below for some tips on which plastics to avoid with hot glue.<\/p>\n\n\n\n\n\n\n\n\n
Plastic Material<\/th>\nHot Glue Adhesion<\/th>\n<\/tr>\n
Polyethylene<\/td>\nPoor<\/td>\n<\/tr>\n
Polypropylene<\/td>\nPoor<\/td>\n<\/tr>\n
Polyvinyl chloride (PVC)<\/td>\nPoor<\/td>\n<\/tr>\n
Polytetrafluoroethylene (PTFE)<\/td>\nPoor<\/td>\n<\/tr>\n
Acrylic<\/td>\nFair<\/td>\n<\/tr>\n
Polycarbonate<\/td>\nGood<\/td>\n<\/tr>\n<\/table>\n

It’s important to note that even if hot glue has good adhesion to a particular plastic material, the bond may not be permanent. Over time, the glue may weaken and lose its grip. If you need a stronger, more permanent bond, consider using an alternative adhesive or roughening up the surface of the plastic before applying the hot glue.<\/p>\n

Silicone<\/h3>\n

Silicone<\/strong> is a rubber-like substance that is often used in electronics, medical devices, and sealants. Because silicone is a non-stick material, hot glue does not adhere well to it. This can be frustrating when trying to attach items made of silicone, such as phone cases or water bottles.<\/p>\n

To help hot glue stick to silicone, it is important to prepare the surface beforehand. One method is to clean the surface with rubbing alcohol to remove any oils or dirt that might inhibit adhesion. Another option is to roughen up the surface with sandpaper or a file to create a better surface for the hot glue to grip onto.<\/p>\n

However, it is important to note that some types of silicone may still not adhere well to hot glue, even with preparation. In this case, it might be best to consider alternative adhesives such as epoxy or cyanoacrylate glue.<\/p>\n

In addition to adhesion issues, it is also important to be careful when using hot glue on silicone to prevent damage to the material. Hot glue can be difficult to remove from silicone and could potentially ruin the item. If hot glue accidentally gets onto silicone, it is possible to remove it using methods such as freezing or using rubbing alcohol.<\/p>\n

While hot glue may not be the most ideal adhesive for silicone, with careful preparation and handling, it is possible to achieve a strong bond. Alternatively, it may be beneficial to explore alternative adhesives or methods of attachment for items made of silicone.<\/p>\n

Glass<\/h3>\n

When it comes to glass, hot glue can struggle because of its smooth and non-porous surface. Hot glue has a tendency to peel away from glass surfaces and may not provide a strong and lasting bond. <\/strong>However, there are ways to make hot glue stick to glass, such as using sandpaper to roughen up the surface before applying the glue, or using a glass-specific glue.<\/p>\n

Materials That Hot Glue Doesn’t Stick To: Glass<\/h4>\n\n\n\n\n\n
Material<\/th>\nHot Glue Adhesion<\/th>\n<\/tr>\n
Smooth glass surface<\/td>\nLow adhesion<\/strong><\/td>\n<\/tr>\n
Roughened glass surface<\/td>\nMedium adhesion<\/strong><\/td>\n<\/tr>\n
Glass-specific glue<\/td>\nHigh adhesion<\/strong><\/td>\n<\/tr>\n<\/table>\n

\nIf you’re looking for a more dependable bond for your glass project, consider using glass-specific glue, such as E6000. Another option could be to use epoxy or cyanoacrylate glue, as they can adhere to multiple surfaces, including glass. Remember to properly prepare the surface for application by cleaning it thoroughly and removing any dust or dirt. <\/p>\n

On a side note, if you accidentally get hot glue on your glass surface, there are ways to remove it. Check out our article on how to clean hot glue<\/a> for some helpful tips on how to get it out.<\/p>\n

Waxed Surfaces<\/h3>\n

When it comes to waxed surfaces, hot glue won’t provide the necessary adhesion. This is due to the fact that hot glue requires a porous surface to grip onto, and waxed surfaces are simply too smooth for it to grab hold. This means that if you’re looking to attach something to a waxed surface, you’ll need to find an alternative adhesive. <\/p>\n

Here are some examples:<\/strong><\/p>\n