Glue for plastic: an overview of waterproof and heat -resistant products

It can be difficult to work with plastic, particularly when you want to make sure the bond is strong and long-lasting. Choosing the appropriate glue is essential whether you’re working on a craft, repair, or do-it-yourself project. Particularly when it comes to their ability to withstand heat and be waterproof, not all adhesives are made equally. By being aware of the variations, you can ensure that your project endures over time and save time.

For plastic items that will be exposed to moisture or submerged in water, waterproof glues are a must. Because of their unique formulation, these adhesives are able to withstand water penetration and keep their bond even in the most humid environments. This is especially crucial for parts that are frequently in contact with water, household items, and outdoor projects.

Conversely, heat-resistant glues are made to endure high temperatures without sacrificing their bonding power. These are perfect for uses where plastic may come into contact with heat, like in kitchenware, electronics, or automotive parts. Selecting a glue that is resistant to heat will guarantee that your plastic parts stay firmly adhered even in the presence of elevated temperatures.

This post will examine the different plastic glue options that are heat-resistant and waterproof. We will go over each type’s best use cases, advantages, and salient characteristics. By being aware of your options, you can select the ideal adhesive for your particular requirements and make an informed choice.

Product Name Description
Super Glue Plastic Fusion A waterproof adhesive ideal for bonding plastic, offering strong, long-lasting holds.
J-B Weld Plastic Bonder A heat-resistant glue perfect for heavy-duty plastic repairs, ensuring durability under stress.
Loctite Plastics Bonding System Features a two-part system for superior adhesion, resistant to water and high temperatures.
Gorilla Super Glue Gel Gel formula that provides a waterproof bond, excellent for vertical surfaces and quick fixes.
Devcon Plastic Welder Specially formulated for tough plastic repairs, offering both waterproof and heat-resistant properties.

Marking of glue

  • PC – polycarbonate connection for gluing greenhouse floors and awnings.
  • ABS – acrylonitril copolymer.
  • PP – propylene glue.
  • PS – polystyrene.
  • PPMA – organic glass of general value.
  • PE – polyethylene agent.
  • PVC – polyvinyl chloride mixture.
  • PA66 – polyamide connection.
  • PUR – polyurethane.

Types of adhesives for plastic

A component that dissolves polymers on a synthetic basis ought to be present in glue. Liquid polystyrene is produced when the mixture becomes more viscous. After solidification, a closer coupling is produced because the composition’s strong solvent breaks down the plastic surface layer’s molecular structure.

Different types of solvents are used for different types of plastic. If you use a mixture with an uneven solvent, the plastic components won’t stick to each other, which may stop a chemical reaction entirely.

In addition, fillers—which are the molecules of the material for which glue is intended—and hardeners—which quicken drying—are used.

Adhesives are applied in liquid, contact, and reactionary modes. Terkli is placed in a different group.


This is a high-temperature composition that requires heating to 110–120 °C before it can demonstrate its capabilities. You need an adhesive gun for work. Pointy glue is applied. Clops paper, wood, and plastic as well.


Utilizing this group’s resources is done in two steps.

  1. Glue is applied to the surface with a thin layer.
  2. After a few minutes, the surface layer of plastic softens, which facilitates the clutch of the bases among themselves. The details are densely crushed to each other, so that the molecules of their upper softened layer are mixed. When the solvent evaporates, a strong seam forms.

The moment, BF-2, and additional glue methods for polystyrene and other plastics are included in the group.

Because the mixtures are toxic, you should only work in a room with good ventilation. The composition of contact adhesives contains harmful ingredients, which make it impossible to apply to the skin or mucous membranes.


Liquid glue that adheres to porous plastic. They may have a water base or include an organic solvent. After applying liquid glue to the surface, another component is pressed against it and held there long enough for the liquid to evaporate from the mixture. PVA is one of the delegates. They adhere wood or linoleum.


Most of the time, one component can dissolve the material’s surface layer and quickly form a strong, rigid seam.

The two components of two-component glue are the hardener and the fastener, which are kept apart. A specific quantity of each ingredient is combined and applied to the plastic prior to adhering. The composition hardens to form a dense seam. Polyester or epoxy resin forms the foundation.

One drawback of glue is that it takes a long time to harden, which eventually makes the seam more fragile.

The best waterproof adhesives

Plastic can tolerate extended exposure to moisture well. When assembling an assembly node out of plastic components, special adhesives need to be used to ensure a waterproof connection.

The moment is plastic

The optimal blend among the contact fund group. Russia is the country of production. The price for a 30 gram tube is 59 r. Polyethylene polyplastmass is securely fastened. dries rapidly and maintains its strength even when exposed to moisture.

It emerges as a transparent seam impervious to temperature changes, acids, alkalis, salts, and other strong chemical reagents with an inorganic origin. The sealant should not come into contact with food or skin because it contains toxic ingredients.

3M Scotch Weld PR100

Epoxy sticks to plastic quite well. Complete pause for twenty minutes. Broken pieces are attached, and cracks are tightly sealed. Appropriate for many kinds of plastic masses.


The glue itself is made in Ireland, but the brand is German. It securely joins rough and smooth surfaces. Sets in 20 g jars. Cost of packing: about 635 r.

High polymerization rate, low viscosity, and resistance to temperature spikes from -40 to +80 °C characterize the glue-mixer. Rubber, metals, elastomers, and plastic do not separate when fixed. The drawbacks include an expensive price tag, an overpowering noxious odor, and not all plastics work well with glue.

Cosmofen Plus S

The most widely used composition when plumbing systems are installed. It costs 244 r. per 0.2 kg and is manufactured in Germany. white in hue; frequently referred to as liquid plastic. Waterproof, oil- and alcohol-resistant. used for installing advertising space, plastic windows and doors, polypropylene pipes, plastic gutters, and pipelines. The formed seam is resistant to temperature fluctuations, sunshine, and atmospheric precipitation. dries quickly and creates a flexible seam. The sour, poisonous odor is the only downside.

88 Luxe

Russia produces the tool. It is purchased to complete heavy tasks because it is produced in 0.9 kg metal jars. 370 r was the bank cost. The mixture, which is used in the shoe industry to glue polymers together, joins plastic, rubber, and plastic. creates a strong, watertight seam. The main disadvantages are a strong odor and a protracted drying period.

The best heat -resistant adhesives

Contemporary plastics are temperature-tolerant. It is necessary to use specific heat-resistant adhesives when adhering the bases made of this type of material.


Waterproof sealant that can withstand high temperatures. The silicone, which solidifies upon contact with moist air, is the principal constituent. The composition has a maximum thermal resistance of +300 °C.

Elite Drakon

Polymer blend, adhesive plastic, parquet flooring, ceramics, timber, etc. D. possesses strong adhesive properties and is heat-resistant.

Mastix Epoxy Termo

Russian production consisting of two components. A 50 g total weight tube costs 67 r. Adhesives are used to join polymers, glass, metal, wood, and ceramics. Following polymerization, the seam can withstand temperatures up to +250°C. is epoxy that has hardeners and fillers in it. Its consistency is viscous.

The ratio of the two ingredients is the same. Both of the surfaces that need to be glued receive the resultant mass. It takes five to six hours at room temperature for the seam to completely solidify. The seam is resistant to extreme heat; it can freeze to -60 °C.

The mucous membranes and skin cannot be allowed to.

Adhesive rods Rexant

The Russian manufacturer produces rods in a variety of colors, thicknesses, and lengths. Sell sets of ten or twelve pieces or individual rods. A set of ten pieces costs 207 p. The product latches on fast and forms a resilient, elastic seam that withstands heat. Utilizing an electric gun, it is applied. Paper, synthetic fibers, plastic, glass, leather, and metal surfaces can all be combined. The requirement for an adhesive gun to be present is the primary disadvantage.

The best superglines

Supercliem is capable of gluing a tiny plastic model or fixing a broken component. He snatches and fixes with a snap.

Permatex Super Glue

Gives the strongest possible connection. Made in America. You will need to pay 126 r for a 2-gram tube. It is consistent like gel. The glue seam can sustain loads of up to 245 n. Vertical surfaces and inaccessible thin details are cohesively bonded by the composition. If the plastic is the wrong kind, a strong bond could form.

Suitable for ceramic, rubber, metal, plastic, and plastic details.

One drop of the economical composition is sufficient to lubricate a surface measuring six centimeters square. creates a clear connecting seam.

ECON of Express is universal

Superglide, a cheap Chinese product, is dependable and has a cap that keeps air out of the tube. Costs 33 p, works easily, and sets quickly. Regarding 3 g. Acceptable materials: paper, rubber, plastic, metal, porcelain, and plastic. establishes a robust connection capable of withstanding loads up to 210 N.

The pieces are pressed against one another for a maximum of one minute after the glue has been applied to the low-fat, cleaned surface.

Has a strong odor, so you should work in a space with adequate ventilation.

Supercolla power

Superpli, made in China. You will pay no more than 50p for a 3-gram tube. They can easily glue wooden, leather, plastic, glass, and porcelain details. The mixture can be applied pointwise with a long-nosed tube, which reduces the amount of material used. It stays contained and doesn’t get on your hands. Ethyl high-blood serum is the primary ingredient, along with a thickener. It is appropriate for gluing white and colored details because, upon drying, it forms a colorless seam. 175 N is the connection strength.

Has no strong smell, grasps in a matter of seconds. The majority of market fakes is the primary drawback.

Henkel super moment maxi

An excellent polymer connection glue. Join cardboard, porcelain, ceramic, and metal bases. supplied in a gentle tube that doesn’t contaminate hands and has an extended nose for point application. Air cannot enter because of the cap’s reliable running of the nose.

Although this superclly is made in Russia, despite being a German brand, its quality isn’t always consistent.

An average tube weighing 20 g costs 290 r.

Methods without glue

  • Dichlorestan. Toxic component that can dissolve plastic. It must be correctly mixed, then a thick mass will turn out, it will serve as a fastening element.
  • Hall or soldering iron. Method for professionals, since beginners often have difficulties with plowing plastic. The soldering iron can directly melt the seams of plastic parts or use the plastic of the same labeling with structural elements as a solder.
  • Acetone. The substance first degreases plastic, cracks and chips are moistened with a brush. The details are tightly pressed, and acetone is applied on top again. The plastic dissolves slightly, while creating the spike effect, and after hardening it reliably fastens the details.

Selecting the proper glue for plastic is essential, particularly if you require a product that is heat-resistant and waterproof. These glues guarantee that your projects or repairs can endure a range of environmental circumstances, which makes them dependable and long-lasting. You can create a solid, long-lasting bond that won’t break under pressure by using glue made specifically for plastic.

For plastic products that will be in contact with moisture, such as outdoor furniture, plumbing repairs, or marine applications, waterproof glues are a necessity. These adhesives form a barrier that keeps moisture from soaking through the glue, guaranteeing that your plastic parts stay firmly joined. Epoxy resins and polyurethane glues are common choices because they provide good adhesion and water resistance.

Heat-resistant adhesives are just as crucial for plastic objects that will come into contact with hot temperatures. These products are ideal for electronic components, kitchenware, and automobile parts because they are made to keep their adhesive qualities even in the presence of heat. The heat-resistant properties of silicone- and cyanoacrylate-based adhesives make them popular choices.

Think about the unique needs of your application when choosing a glue for your plastic projects. Select a glue that is suitable for the conditions the bond will encounter, such as exposure to heat or water. You’ll be able to guarantee long-lasting and successful repairs this way, giving you confidence in your work and peace of mind.

Selecting the appropriate glue is crucial when working with plastic materials to ensure strong, long-lasting bonds, particularly under difficult circumstances. An extensive review of heat-resistant and waterproof adhesives made especially for plastic is given in this article. It will lead you through the top products on the market, emphasizing their qualities, advantages, and best uses, enabling you to choose wisely for your project—whether it’s for home or commercial use or routine maintenance.

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Daria Yakovlev

Interior designer, author of online color design courses. I will help you create a harmonious interior using color.

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