
There are various types of adhesives available in the market that can be used to stick a sponge to plastic. Some adhesives are colourless, fast-curing, and made on the base of water dispersion of vinyl polyacetate. These adhesives are designed for bonding delicate materials such as sponge, PU foam, foamed polystyrene, and plastic. Other adhesives like the Technicqll 70Ml Adhesive Glue are suitable for gluing sponge polystyrene, PU foam, and plastic. The 3M Super 77 spray adhesive is another option that can be used to glue plastic to sponge foam.
| Characteristics | Values |
|---|---|
| Type of glue | Technicqll 70ml Adhesive Glue, 3M Super 77 Spray Adhesive |
| Application | Apply to both surfaces, spread uniformly, allow to dry, then join |
| Use case | Bonding delicate materials such as sponge, PU foam, foamed polystyrene, cork, leather, cardboard, and plastic |
| Warranty | Available |
| Downsides | Messy without a cap on the nozzle, adhesive strings when separating two surfaces |
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What You'll Learn

Using Technicqll 70ml adhesive glue
Technicqll 70ml adhesive glue is a versatile product that can be used to bond a wide range of materials, including sponges and plastics. Here is a step-by-step guide on how to use this glue to stick a sponge to plastic:
Prepare the Surfaces
Before you begin, ensure that the sponge and plastic surfaces are dry, clean, and degreased. This is important to ensure a strong bond.
Apply the Glue
Apply the Technicqll adhesive glue to both the sponge and plastic surfaces. Spread the glue uniformly across the surfaces. You can use a spatula or a piece of cardboard to evenly distribute the glue.
Join the Surfaces
After applying the glue, join the sponge and plastic surfaces together. You can either join them immediately or wait a few minutes for the glue to partially dry before joining, depending on your preference. The glue will take about 30 minutes to dry, depending on the thickness of the layer and the temperature.
Immobilize the Materials
Once the sponge and plastic are joined, immobilize them for a few hours to allow for full curing. It is recommended to stick the materials together at a temperature above 10°C to ensure optimal adhesion.
Remove Excess Glue
If you have any excess glue on the surfaces, you can remove it using a cloth with denatured alcohol. This will help create a clean and tidy finish.
Allow for Full Strength
While the glue will dry within 30 minutes, it will take about 24 hours to achieve its full strength. During this time, avoid subjecting the bonded materials to any breaking stresses.
By following these steps, you can effectively use Technicqll 70ml adhesive glue to stick a sponge to plastic, creating a strong and durable bond.
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Applying 3M Super 77 spray adhesive
3M Super 77 spray adhesive is a versatile, fast-drying spray adhesive that bonds a wide range of lightweight materials. It is a reliable, multipurpose spray adhesive that can be used for projects of all kinds, from crafting to construction. The spray adhesive has an aggressive tack that offers a high initial grab, providing fast results to keep projects moving ahead.
Before using 3M Super 77, it is important to take the necessary safety precautions. As the adhesive can be allergic to some people, it is recommended to wear gloves to protect your hands from the spray and make cleanup easier. If you are spraying for an extended period, it is advisable to use a respirator or a simple dust filter to protect yourself from the chemicals.
To achieve optimal adhesion, it is crucial to let the adhesive sit after spraying. This allows the stick particles to expand and cure, resulting in the best tackiness. The can directions recommend waiting for about 30 seconds, but you can test the tackiness with your finger by tapping an edge or inconspicuous area. Once the adhesive is tacky, you can stick your pieces together and let them adhere.
When using 3M Super 77 spray adhesive, ensure that you follow the instructions carefully. Spray both surfaces evenly, right up to the edges, for an extra-strong bond. Apply the materials within the recommended time frame while the adhesive is still aggressively tacky. By following these steps, you can effectively use 3M Super 77 spray adhesive to stick sponge to plastic or bond various other materials.
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Gluing with vinyl polyacetate
Polyvinyl acetate (PVA, PVAc, poly(ethenyl ethanoate)) is a widely available adhesive used for porous materials like wood, paper, and cloth. It is commonly known as wood glue, white glue, carpenter's glue, school glue, or Elmer's Glue. PVAc is an inexpensive, high-tonnage bulk commodity polymer that is moderately biodegradable. It is a type of thermoplastic with a glass transition temperature between 30 and 45 °C, depending on the molecular weight.
PVAc is prepared by the polymerization of vinyl acetate monomer (free-radical vinyl polymerization of the monomer vinyl acetate). It is made by dissolving polyvinyl acetate in an alcohol, such as methanol, and treating it with an alkaline catalyst like sodium hydroxide. PVAc dispersions, such as Elmer's Glue-All, contain polyvinyl alcohol as a protective colloid. In alkaline conditions, boron compounds such as boric acid or borax cause the polyvinyl alcohol to cross-link, forming tackifying precipitates.
PVAc has various applications, including bookbinding, handicrafts, wallpaper adhesive, a primer for drywall, a gum base in chewing gum, an adhesive for cigarette paper, and a coating layer on Gouda cheese. It is also used in paper coatings, paint, and other industrial coatings, as well as a binder in nonwovens, glass fibers, sanitary napkins, and filter paper. PVAc is widely used in glass fiber-reinforced plastics to improve stress and anti-shrink properties and in automobile headlights to enhance their gloss performance.
When using PVAc as an adhesive, it is important to consider its limitations. For example, when used to edge-glue lumber, particularly high-density hardwoods, the adhesive may fail due to shrinkage stresses caused by rapid moisture content changes. To enhance the resistance to moisture and decrease creep, modifications can be made, such as adding other types of vinyl monomers during polymerization or including cross-linking agents to increase the polymer's rigidity.
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Using a spatula or cardboard to spread glue
To stick a sponge to plastic, one option is to use Technicqll 70ml Adhesive Glue. This is a universal colourless, fast-curing adhesive that can be used to bond a sponge to plastic. The glue is designed for bonding delicate materials such as sponge, PU foam, foamed polystyrene, and cardboard to building materials such as plastic, wood, and glass.
To use this glue, the surfaces must be dry, clean, and degreased. The adhesive can be squeezed from the tube and spread with a spatula or a piece of cardboard. It should be spread uniformly and left to evaporate partially. When joining bigger surfaces, one of the surfaces should be penetrable to air to allow for water evaporation.
- Prepare the surfaces: Ensure that the sponge and plastic surfaces are clean, dry, and free of any grease or residue. If necessary, lightly sand the surfaces to create a rough texture, which will help the glue adhere better.
- Squeeze out the glue: Open the tube of Technicqll adhesive and squeeze out a small amount of glue onto a spatula or a clean piece of cardboard. You can also squeeze the glue directly onto the surface, but be careful to control the amount to avoid excess glue.
- Spread the glue: Use the spatula or cardboard to spread the adhesive evenly onto the bonding surfaces. Apply a thin, uniform layer of glue to ensure proper adhesion. Cover the entire area that will be in contact, taking care not to miss any spots.
- Allow partial evaporation: As per the manufacturer's instructions, let the glue partially evaporate before joining the surfaces. The amount of time needed will depend on the thickness of the glue layer and the temperature in your workspace. Touch the glue to check; it should be dry to the touch to prevent mess and ensure instant bonding.
- Join the surfaces: Once the glue is partially dry, carefully align the sponge and plastic surfaces and press them together firmly. Make sure they are correctly positioned, as dislocation or unsticking after joining may be difficult.
- Immobilize the assembly: To ensure a strong bond, immobilize the joined sponge and plastic for a few hours until the glue is fully cured. Maintain a temperature above 10°C during this curing process.
By following these steps and using a spatula or cardboard to spread the Technicqll adhesive evenly, you can effectively stick a sponge to plastic, creating a strong and durable bond.
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Ensuring surfaces are dry, clean, and degreased
Ensuring that the surfaces are dry, clean, and degreased is crucial for achieving a strong adhesive bond. Here are some detailed steps to prepare the plastic and sponge surfaces before gluing:
Cleaning the Surfaces:
Start by removing any visible contaminants from the surfaces, such as dust, dirt, or loose particles. Use a soft cloth or brush to wipe down the surfaces gently. For delicate surfaces, be cautious and remove as much dirt as possible without damaging the material.
Degreasing the Surfaces:
Degreasing is essential to remove any traces of oil, grease, or fingerprints that may interfere with adhesion. Use a suitable solvent for degreasing, such as methyl ethyl ketone (MEK), acetone, or isopropyl alcohol. Apply the solvent to a clean cloth and wipe the surfaces in one direction. Ensure you follow health and safety guidelines when working with solvents.
Testing Surface Cleanliness:
To test if the surfaces are clean and degreased, perform a water test. Sprinkle or spray water on the surfaces. If the water spreads out and forms a continuous film, the surface is clean. If the water beads up, further degreasing is required. Note that this test may not be effective for certain plastics, as some plastics may cause water to bead even when they are not clean.
Drying the Surfaces:
After cleaning and degreasing, ensure that the surfaces are completely dry before applying any adhesive. Use a lint-free cloth to wipe down the surfaces and absorb any remaining moisture. If necessary, allow the surfaces to air-dry for a while to ensure no moisture remains.
Abrading the Surfaces (Optional):
Abrading the surfaces with fine-grit sandpaper, emery cloth, or steel wool can enhance adhesion further. Abrading creates a rougher surface, improving the adhesive's grip. However, only consider abrading if it is practical for the materials you are bonding.
Remember, the level of surface preparation depends on the desired bond strength. For simple bonds, minimal preparation like cleaning may suffice, while structural strength bonds require more extensive treatment, including degreasing and potentially abrading.
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Frequently asked questions
To stick a sponge to plastic, ensure that the surfaces are clean and dry. Apply the adhesive to the sponge and plastic surface and spread it uniformly. Leave to dry for a few minutes and then press the two surfaces together.
An alternative method is to use 3M Super 77 spray adhesive. This is a spray adhesive that is suitable for bonding foam to plastic.
To make a glue sponge, get a plastic container and fill the bottom with glue. Cut the sponge to fit the container, get it wet, and then ring out the water. Place the sponge into the container and pour more glue on top.
Glue sponges are less messy than glue bottles as they give you the perfect amount of glue. They are easy to use and ensure that there are no glue clumps or wrinkles.











































