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How to Make a Waterproof Glue?

How to Make a Waterproof Glue?

Do you need to make a waterproof glue? Whether you’re a DIY enthusiast or just looking for a way to fix something around the house, this guide is for you. In this article, we will teach you how to make a strong and durable waterproof glue using simple household ingredients. We’ll also provide some tips on how to use it properly. So whether you’re repairing a leaky roof or fixing your boat, this guide will help you get the job done!

Why Do You Need a Waterproof Glue?

There are a number of reasons why you might need waterproof glue. Maybe you’re working on a project that will be exposed to the elements, or maybe you just want to make sure your work is extra durable. If you find yourself in need of a waterproof glue, there are a few factors to keep in mind while making your selection.

The first thing to consider is what kind of material you’ll be using the glue on.

There are different formulations for different materials, so it’s important to choose one that’s compatible with whatever you’re working with. For example, if you’re gluing together two pieces of wood, you’ll want to use a wood-specific glue.

Once you’ve chosen the right kind of glue, the next step is to make sure you’re using it correctly. Waterproof glues require a little bit more care than regular glues, so it’s important to follow the instructions on the label carefully.

Why Do You Need a Waterproof Glue?

With a little bit of care and attention, you can easily find the right waterproof glue for your needs. Just make sure to do your research and follow the instructions carefully, and you’ll be able to create something that will withstand anything life throws at it. [1]

How to Make a Waterproof Glue: Easy Recipes

Recipe 1: Traditional Paper-Paste


  • Flour
  • Water
  • Salt

Instructions: Start by mixing flour and water in a ratio of three to one. Add salt to the mixture and stir until it is fully dissolved. Heat the mixture over low heat, stirring constantly, until it thickens and forms a paste. Once the paste has cooled, apply it to your paper project. [2]

Recipe 2: Milk-based White Glue

This recipe is best for bonding porous materials like paper and cardboard.


  • Flour
  • Water
  • Salt

Instructions: Combine the milk and flour in a bowl, then slowly add water until you have a smooth paste. Apply the glue to your project, then allow it to dry completely before putting the item into use. [3]

Recipe 3: Vegan-Mucilage Adhesive

Mucilage is a glue-like substance that can be made from plant based ingredients.

This recipe uses flaxseed meal and water to create a sticky, waterproof adhesive.

To make this recipe, you will need:

  • ¼ cup flaxseed meal
  • ¾ cup boiling water
  • A small bowl
  • A spoon

Instructions: In the small bowl, mix together the flaxseed meal and boiling water until it forms a gel. If the mixture is too thick, add more water a tablespoon at a time until it reaches the desired consistency. Apply the mucilage to your project as you would any other glue and allow it to dry completely before using. Store any leftover adhesive in an airtight container. This recipe is great for those who are looking for a non-toxic, eco-friendly option.

How to Make a Waterproof Glue: Easy Recipes

Recipe 4: Basic Cornstarch Glue


  • Cornstarch
  • Water
  • White vinegar (optional)

Instructions: Start by mixing together equal parts cornstarch and water in a bowl. If you’re using white vinegar, add a splash of it now. Stir the mixture until it’s smooth, then transfer it to a small saucepan. Cook the glue over low heat, stirring frequently, until it thickens and becomes clear. Once it’s reached this point, remove the pan from the heat and let the glue cool completely before using it. Store your homemade glue in an airtight container for future use. And that’s all there is to it! [4]

Recipe 5: Pine Pitch Glue

This recipe is a little more involved than the others, but it’s worth it for the strength of the glue.
You’ll need:

  • A double boiler or two saucepans that fit snugly together
  • Pine pitch (you can usually find this at a craft store)
  • Beeswax
  • Coconut oil
  • An old toothbrush

To make the glue, start by melting the pine pitch in the double boiler. Once it’s melted, add equal parts beeswax and coconut oil to the mixture and stir until they’re completely combined. Remove from heat and let cool slightly before using an old toothbrush to apply to your project. This glue will dry hard and waterproof, so it’s great for outdoor projects.

Recipe 6: Sourdough Glue


  • Sourdough starter (active, from the fridge is fine)
  • Water
  • Flour
  • Salt

Instructions: Mix together equal parts sourdough starter, water, and flour. Add a pinch of salt and mix well. Allow the mixture to sit for at least 30 minutes before using. This glue can be stored in the fridge for up to a week. To use, simply brush on a thin layer of glue to both surfaces that you wish to adhere. Press the surfaces together and allow the glue to dry completely before subjecting it to any stress or moisture. This glue is not recommended for outdoor use. [5]

How to Make a Waterproof Glue: Easy Recipes

Recipe 7: Gelatin Glue With Vinegar

In a small saucepan, mix together:

  • One tablespoon of granulated gelatin
  • One cup of cold water
  • Let the mixture sit for about five minutes to let the gelatin bloom.
  • Bloom is when the granules of gelatin swell and absorb water to form a gel.
  • After the bloom period, heat the pan on low heat until the gelatin has dissolved completely.

Once it has dissolved, add in:

  • One tablespoon of white vinegar
  • Stir until mixed and then remove from heat. The glue will thicken as it cools. Once it’s thickened, you can use it like any other glue!

Keep in mind, this glue will not be as strong as some of the other recipes on this list.

If you want to make a stronger version of this glue, try using hot water instead of cold water when the gelatin blooms.

Hot water will dissolve the granules faster and result in a stronger bond.

How to Make a Waterproof Glue: Easy Recipes

Things to Avoid When Making a Waterproof Glue

  • Do not use an already wet surface.
  • Avoid using too much water.
  • Do not let the glue dry out completely.
  • Do not apply too much pressure.


How do you make school glue waterproof?

To make school glue waterproof, simply apply a layer of clear nail polish or petroleum jelly to the dried glue. This will create a barrier that will prevent water from reactivating the glue.

Is Gorilla Glue waterproof?

Gorilla Glue is not technically waterproof, but it is water resistant. This means that it can withstand exposure to moisture and humidity without breaking down.

What is the best waterproof glue for wood?

The best waterproof glue for wood is epoxy.

Epoxy creates a strong bond and is resistant to both heat and cold. It can also be used on wet or damp surfaces.

What is the strongest waterproof adhesive?

The strongest waterproof adhesive is epoxy. Epoxy creates a strong bond and is resistant to both heat and cold. It can also be used on wet or damp surfaces.

How do you make homemade waterproof glue?

To make homemade waterproof glue, simply mix together equal parts of flour and water. This mixture will create a paste that can be used as an adhesive.

How do you make gelatin waterproof?

You can make gelatin waterproof by adding a small amount of glycerin to the mix. This will help to seal in the moisture and prevent the glue from drying out. You can also add a few drops of essential oil to the mix, which will help to keep the glue fresh and pliable for longer. To make sure that your glue is truly waterproof, you should test it out on a piece of paper or fabric before using it on your project. Simply apply a small amount of glue to the material and then hold it under running water. If the glue holds fast, then it is ready to use. If not, you may need to adjust the ratio of ingredients slightly.

What glue is totally waterproof?

There are a few adhesives that perform well in wet conditions, but no glue is completely waterproof. The best way to make sure your project can withstand moisture is to use a sealant over the top of the glued area. This will provide an extra layer of protection against water damage. Here are a few tips for using glue in wet conditions:

  1. Choose an adhesive that is designed for use in wet conditions, such as Gorilla Glue or E6000.
  2. Apply the glue to one surface and allow it to dry before joining the two pieces together.
  3. Use clamps or weights to keep the surfaces together while the adhesive dries.
  4. Apply a sealant over the top of the glued area for extra protection against moisture.
  5. Store your project in a cool, dry place until the glue is completely dry.

Is white glue waterproof?

No, white glue is not waterproof. However, you can make a waterproof glue by adding a few simple ingredients to the mix. To make a waterproof glue, you will need:-
A container

  • Waterproof sealant (we recommend silicone)
  • White glue
  • Mixing stick
  • Measuring cup

First, measure out one cup of white glue and pour it into your container. Next, add in one tablespoon of silicone sealant and stir well with the mixing stick. Once the ingredients are combined, your waterproof glue is ready to use! Use it just like you would any other glue; apply it to your surfaces and allow it to dry. Waterproof glue is perfect for projects that will be exposed to moisture or extreme weather conditions. It can be used on a variety of surfaces, including wood, glass, metal, and plastic.

Useful Video: A Simple DIY Way to Waterproof Anything


So, there you have it! Our guide on how to make a waterproof glue. We hope you found it helpful and informative. If you have any tips or tricks on how to make a waterproof glue, be sure to share them with us in the comments below!

Thanks for reading and good luck with your projects! Until next time!

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  1. https://primei.com/blogs/adhesive-resources/what-is-the-best-waterproof-wood-glue
  2. https://www.survivalsullivan.com/diy-glue-sticky-survival-situatons/
  3. http://www.kidscorner.org/top-five/8-science/8-making-glue-from-milk
  4. https://www.wikihow.com/Make-Cornstarch-Paste
  5. https://alexandracooks.com/2020/08/28/why-is-my-sourdough-so-sticky-plus-fixes-to-4-common-sourdough-mistakes-and-faqs/