Is Resin Waterproof? The Truth About Their Waterproof Ability

  • Resin Art 101
  • Posted by: carson-rutz
  • Mar 20, 2024

Is resin waterproof? After the resin has fully cured, it becomes waterproof, forming a barrier that blocks the permeation of liquids and solids, such as water and humid air. This impermeable property makes epoxy an effective solution for protecting surfaces from potential damage caused by moisture.

Is epoxy resin waterproof? (source: acrylgiessen)
Is epoxy resin waterproof? (source: acrylgiessen)

Note: Resin will not cure properly if it comes into contact with water during curing. Therefore, it is crucial to ensure that resin does not come in contact with water until it has finished curing to maintain its waterproof properties.

Discover “Is resin waterproof” by watching the informative video below. Get all your questions answered about resin and its use in various applications.

Factors Affecting Waterproof in Resin

As resin becomes increasingly popular in various applications, it's necessary to understand the factors that can affect its waterproofing. Let's explore these factors together!

Resin Type 

When purchasing a Gorilla-like brand of epoxy, have you ever wondered "Is Gorilla epoxy waterproof?" Or is 3D printer resin waterproof? The waterproofing properties of different types of resin vary. So, let's dive into the world of resin and explore how different types affect waterproofing abilities.

Type of resin Waterproof ability Price
Epoxy Resin

Epoxy resin

An extremely powerful waterproofing resin that is applied in several areas $7.99 - $69.99
Polyester Resin

Polyester resin

Waterproof but it should not be submerged in water or utilized in saltwater settings $59.99
Polyurethane Resin

Polyurethane resin

Waterproof to a certain degree. Certain polyurethanes have higher absorbency than others due to various factors $49.99 - $89.97
Silicone Resin

Silicone resin

Extremely weather-resistant compared to ordinary organic resins $20.99 - $29.99
UV resin

Uv resin

Not have the same level of waterproof abilities as other resins such as epoxy or polyurethane $19.99 - $55.99
3D printer resin

3d printer resin

3D printed materials are waterproof and airtight, and most cured resins have exceptionally minimal water absorption $16.50 -  $49.99
Gorilla epoxy

Gorilla epoxy

Water resistant, it can withstand mild exposure to water but should not be entirely submerged. $5.99 - $29.67 

Note: Please note that prices as shown are valid at the time of publication and are subject to change without prior notice.

From the above analysis table, when seeking the best waterproof ability, it is highly recommended to consider Epoxy Resin, Silicone Resin, and 3D Printer Resin. Epoxy Resin, in particular, is highly durable, strong, and moisture-resistant, making it an excellent choice. However, when it comes to price, epoxy resin is more expensive than that of its counterparts. 

Additionally, Silicone Resin and 3D Printer Resin also offer great waterproof features at reasonable prices, making them ideal choices for various projects requiring waterproof protection.

Curing Time and Conditions

The proper curing time and conditions significantly impact the waterproofing effectiveness of resin materials (source: artresin)
The proper curing time and conditions significantly impact the waterproofing effectiveness of resin materials (source: artresin)

Once fully cured, the resin is waterproof. Proper curing allows the resin to form a strong and durable bond, ensuring that it can effectively seal out water and protect surfaces. So, how long does resin take to cure? Curing time varies according to the type of resin.

For example, it takes about 15 - 20 minutes to cure under a UV lamp, and a few hours to cure in direct sunlight. Polyester Resin needs 24 to 48 hours to fully cure and achieve its waterproof characteristic. It is recommended that you wait up to 12 hours longer than instructed to ensure that the resin has completely cured. 

Ratio of Components

The ratio of components in resin significantly impacts its waterproof properties and overall effectiveness (source: wind kite surf sup singapore)
The ratio of components in resin significantly impacts its waterproof properties and overall effectiveness (source: wind kite surf sup singapore)

The ratio of ingredients in plastic affects its waterproofing ability. If mixed incorrectly, the plastic may not achieve a proper seal, leading to decreased waterproofing ability. Inadequate ratios could result in gaps or inconsistencies in the material, allowing water to seep through and compromise the waterproofing properties of the plastic. 

The most usual proportion is 1:1 or 2:1, but it can also be 3:1 or 5:1 depending on the specific product. Deviating from the recommended ratios can impact the chemical reactions during curing, potentially compromising the waterproofing capabilities of the resin. So, how to mix resin and hardener accurately? Learn the step-by-step process in our comprehensive article!

Environmental Conditions

The water-resistance qualities of resin coatings can be influenced by environmental factors including temperature and humidity conditions (source: artresin)
The water-resistance qualities of resin coatings can be influenced by environmental factors including temperature and humidity conditions (source: artresin)

When it comes to environmental conditions, things like temperatures, liquids, moisture, and humidity can all play a role in how well resin can withstand water.

Temperatures

Extreme heat can cause the resin to soften and lose its ability to form a strong bond, leading to decreased waterproofing effectiveness. On the other hand, extreme cold can cause the resin to become brittle and crack, compromising its waterproof seal. The optimal temperature for epoxy application typically falls between 70°F to 80°F, with 75°F considered the most ideal temperature.

Liquids and moisture exposure

Epoxy is initially in a liquid or semi-solid state, making it vulnerable to disruption from water or other liquids. If water does come into contact with uncured epoxy, it can interfere with the bonding and curing process, resulting in a less durable and non-waterproof finish. Therefore, optimal curing of epoxy resin occurs in dry conditions, it is essential to work in a space that is free from moisture.

Humidity

High humidity levels can cause moisture to be absorbed by the resin, affecting its curing and drying process. This can weaken the resin's waterproof properties, leading to potential issues with durability and long-term water resistance.

Therefore, for optimal results, it is recommended to cure epoxy resin in an environment with a relative humidity of 60% or lower. Besides, using space heaters and a dehumidifier can maintain the ideal temperature and humidity levels for successful epoxy curing.

Additives and Sealants

Some resins may include additives or modifiers to enhance specific properties, including waterproofing (source: tech master)
Some resins may include additives or modifiers to enhance specific properties, including waterproofing (source: tech master)

Some resins may include additives or modifiers to enhance specific properties, including waterproofing. Or by incorporating specific additives, resins can be modified to withstand moisture and water exposure better. 

Some resins may contain additives or modifiers to improve specific attributes like waterproofing (source: greenlight surf supply)
Some resins may contain additives or modifiers to improve specific attributes like waterproofing (source: greenlight surf supply)

In terms of sealants, they penetrate the pores of materials such as wood, brick, and cement to prevent water penetration. An additional sealant finish, applied as a thin film, enhances the surface with a glossy and appealing layer after the initial sealing process. For example, with its famous ability to resist water penetration, TSS Pro Sealants’ TSSPRO-100 or Polyurethane sealant keeps the materials underneath from decaying, bending, or deteriorating over time.

Tss pro sealants’ tsspro-100 with its famous ability to resist water penetration (source: tsspro sealant)
Tss pro sealants’ tsspro-100 with its famous ability to resist water penetration (source: tsspro sealant)

Manufacturers and users need to understand the compatibility of these additives with the desired application to ensure optimal waterproofing performance in resin-based products.

Surface Preparation

Proper surface preparation ensures resin adheres securely, creating a strong waterproof seal for long-term durability ( source: artresin)
Proper surface preparation ensures resin adheres securely, creating a strong waterproof seal for long-term durability ( source: artresin)

The surface to which the resin is applied must be properly prepared. Contaminants, moisture, and irregularities on the surface can hinder the adhesion of the resin, leading to potential leaks or water damage. 

Thoroughly preparing the surface before applying the resin, such as removing any debris or moisture, can improve the bond between the resin and the surface, ultimately enhancing its waterproofing capabilities.

Applications of Weatherproof Resin

Weatherproof resin is a must-have for projects that require durability and resistance to the elements - discover the top 5 applications here!

Arts and Crafts

Create stunning jewelry pieces like necklaces by using weatherproof resin, perfect for outdoor adventures. (source: fruugo)
Create stunning jewelry pieces like necklaces by using weatherproof resin, perfect for outdoor adventures. (source: fruugo)

Resin is a versatile material that has numerous applications in arts and crafts, particularly in creating jewelry, sculptures, and decorative objects. So, is resin jewelry waterproof? Yes, it is! That is the reason why resin is popularly used in many DIY projects in jewelry applications such as casting intricate earrings, pendants, or bangles that will retain their shine and durability even when exposed to the outdoors. Sculptors also love using weatherproof resin to create durable outdoor statues or garden ornaments that can withstand changing weather conditions.

Enhance your backyard garden with a charming weatherproof resin deer figurine, adding a touch of nature (source: walmart)
Enhance your backyard garden with a charming weatherproof resin deer figurine, adding a touch of nature (source: walmart)

Besides, epoxy does make wood waterproof in wooden craft projects by the formation of a barrier that keeps water from penetrating into the wood. The resin not only enhances the natural beauty of the wood but also adds a glossy finish that can make the final piece look more polished and professional. Hirosart's epoxy lamp products made of wood are a great example of how resin can be effectively used in woodworking projects.

Illuminate your space with a unique lamp crafted from waterproof resin for wood (source: hirosart)
Illuminate your space with a unique lamp crafted from waterproof resin for wood (source: hirosart)
Whale shark keyboard wrist rest (source: hirosart)
Whale shark keyboard wrist rest (source: hirosart)

Besides, the water resistance of resins makes it perfect for making comfortable, stylish wrist rests, great for people who use computers frequently. Now you can enjoy the comfort and support our wrist rests provide while not having to worry about spills or sweat affecting its durability. 

Marine Industry

Unsaturated polyester frp boat coatings resin (source: indiamart)
Unsaturated polyester frp boat coatings resin (source: indiamart)

Weatherproof resin is a game-changer in the marine industry, where harsh environments such as saltwater and ultraviolet (UV) radiation can damage boats and watercraft parts. Resin is like a protective shield that seals and waterproofs essential components like propellers, rudders, and steering systems.

It's not just about prevention either; resin can also work wonders in repairing cracks and leaks, keeping vessels afloat and functioning smoothly. Polyester resin, epoxy resin, and vinyl ester resin are known for their durability and effectiveness in marine applications, ensuring that watercraft can navigate unpredictable waters.

Industrial Applications

Weatherproof resin, a versatile material, is often used in electronic components and encapsulation due to its durability (source: youtube)
Weatherproof resin, a versatile material, is often used in electronic components and encapsulation due to its durability (source: youtube)

Weatherproof resin is a versatile material that finds its applications in electronic components and encapsulation. The resin provides a protective layer that shields delicate electronics from harsh weather conditions, dust, and moisture, ensuring their longevity and performance. One of four types of resins is usually used for these applications: silicone, epoxy, polyester, or polyurethane.

In the automotive industry, weatherproof resin is used for coating and sealing automotive parts, such as sensors and wiring harnesses, to protect them from harsh weather conditions and contaminants on the road. For example, Polyvinyl Chloride (PVC) resins have diverse applications, including upholstery, door panels, and electrical insulation.

Polymethyl Methacrylate (PMMA) resins, which have exceptional optical clarity and impact resistance, are extensively utilized for external car parts. Polyamide resins provide excellent strength and heat resistance for parts of engines.

Weatherproof resin is a key material in cars, ensuring durability and protecting vehicles from outdoor elements (source: youtube)
Weatherproof resin is a key material in cars, ensuring durability and protecting vehicles from outdoor elements (source: youtube)

Household Applications

Weatherproof resin creates a long-lasting barrier that protects your outdoor furniture and wood protection from extreme weather conditions like rain, humidity, and UV rays. Therefore, your favorite chairs, tables, and wooden floors will last longer and require less maintenance without having to worry about the elements.

The resin is also mold and mildew-resistant, making it suitable for moist or humid environments. We've compiled a list of the 15+ best epoxy resins for wood to maximize their effectiveness in your wooden projects. 

In oil and gas pipelines, weatherproof resin is used to seal cracks and joints, preventing the leakage of hazardous materials. It is also effective in repairing damaged water pipelines, sewer lines, and even electrical conduits, which makes it a reliable material for users.

Additionally, weatherproof resin can also be used to reinforce infrastructures such as bridges, buildings, and roads by filling in cracks and strengthening weak areas. Epoxy and polyurethane resins are commonly used for infrastructure repair due to their high waterproofing properties.

Textile and Fabric Coatings

Applying a weather-resistant topcoat, like polyurethane, is key to protecting resin in textiles and fabric (source: adfors)
Applying a weather-resistant topcoat, like polyurethane, is key to protecting resin in textiles and fabric (source: adfors)

Applying a topcoat of weather-resistant material, like polyurethane, can do wonders for protecting resin in textile and fabric coatings. Resins play a crucial role in enhancing the durability and flexibility of fabrics, making them resistant to wear and tear.

Acrylic resin is commonly used in outdoor fabrics to provide water resistance, while polyester resin helps maintain shape and structure. These resins effectively shield fabrics from moisture, UV rays, and other weather-related damage, ensuring they last longer and look great.

Best Waterproof Epoxy Resin for Different Applications

If you need a reliable waterproof epoxy resin that suits your project perfectly, we have just the right solutions for you.

Epoxy Resin Working Time Applications Price
Naked Fusion The Artist’s Resin 1-Gallon Kit

Naked fusion the artist’s resin 1-gallon kit

45 minutes Casting, coating, and art projects $79.95/Gallon
Nicpro 16-Ounce Crystal Clear Epoxy Resin Kit

Nicpro 16 ounce crystal clear epoxy resin kit best non-toxic resin (source: amazon)

60 minutes Casting and coating applications $15.99/16 oz
FGCI Liquid Glass Deep Pour Epoxy

Fgci liquid glass deep pour epoxy

30 minutes  $99.99 - $278.99
TotalBoat Table Top Epoxy

Totalboat table top epoxy

20 minutes at 70°F or 30 minutes at 77°F Clear coating bar tops, tables, counters $73.99/Gallon
Puduo Epoxy Resin Kit for Art

Puduo epoxy resin kit for art

40 - 50 minutes Casting and doming resin art, coating $94.99/Gallon
Dr. Crafty Clear Epoxy Resin Kit

Dr. Crafty clear epoxy resin kit

45 minutes Arts and Crafts $64.99/Gallon
ArtResin Epoxy Resin

Artresin epoxy resin

40 - 60 minutes Arts and crafts projects, coat and protect artwork $119/Gallon
Rust-Oleum EpoxyShield Garage Floor Coating

Rust-oleum epoxyshield garage floor coating

45 - 50 minutes Clean and dry concrete floors $168.61/Gallon
Crystal Clear Epoxy Resin One Gallon Kit

Crystal clear epoxy resin one gallon kit

45 minutes DIY projects, countertops, bar tops, tabletops, river tables $64.99/Gallon
MAS Table Top Pro Epoxy Resin & Hardener

Mas table top pro epoxy resin & hardener

10 - 15 minutes Furniture and countertop refinishing, woodworking Projects $85.99/Gallon

Note: Please note that prices as shown are valid at the time of publication and are subject to change without prior notice.

Naked Fusion The Artist’s Resin 1-Gallon Kit

Naked fusion's artist's resin 1-gallon kit is perfect for creating waterproof masterpieces with ease (source: amazon)
Naked fusion's artist's resin 1-gallon kit is perfect for creating waterproof masterpieces with ease (source: amazon)
  • Brand: NAKED FUSION
  • Uses: Craft, professional woodworking, art, casting resin, silicone molds, coasters, DIY, countertops, tabletop, river table, canvas,...
  • Compatible Material: Concrete, glass, geodes, crystals, rocks, canvas, silicone molds, and acrylic
  • Item Form: Liquid

This resin offers exceptional waterproof ability with 4X UV resistance, non-yellowing properties, and improved heat resistance up to 230°F, making it a durable and reliable choice for artistic projects.

Nicpro 16-Ounce Crystal Clear Epoxy Resin Kit

Nicpro 16-ounce crystal clear epoxy resin kit will make your diy projects shine beautifully and be water-resistant (source: amazon)
Nicpro 16-ounce crystal clear epoxy resin kit will make your diy projects shine beautifully and be water-resistant (source: amazon)
  • Brand: Nicpro
  • Uses: Jewelry making, encapsulating objects, garment accessories, cast figurines, making resin paintings, and crafts decorations, 
  • Compatible Material: Wood
  • Item Form: Liquid

Nicpro 16-ounce Crystal Clear Epoxy Resin Kit boasts excellent waterproof ability. This resin is self-leveling, self-degassing, low odor, non-toxic, and emits no fumes. It is resistant to yellowing from UV exposure, ensuring long-lasting results for your projects.

FGCI Liquid Glass Deep Pour Epoxy

Fgci liquid glass deep pour epoxy offers unmatched waterproof protection for all projects (source: amazon)
Fgci liquid glass deep pour epoxy offers unmatched waterproof protection for all projects (source: amazon)
  • Brand: FGCI
  • Uses: Deep pour epoxy resin, perfect for river tables and large-scale projects
  • Compatible Material: Wood
  • Item Form: Liquid

FGCI Liquid Glass Deep Pour Epoxy is known for its exceptional waterproof ability. This epoxy is specially formulated to create a crystal-clear, waterproof finish that is resistant to water, moisture, and other liquids. It is perfect for projects like river tables, countertops, and bar tops, where durability and water resistance are essential.

TotalBoat Table Top Epoxy

Totalboat table top epoxy is a top-notch waterproof resin that brings out the best in your projects (source: amazon)
Totalboat table top epoxy is a top-notch waterproof resin that brings out the best in your projects (source: amazon)
  • Brand: TotalBoat
  • Uses: Craft, coating, and waterproofing surfaces, making custom jewelry and accessories.
  • Compatible Material: Metal
  • Item Form: Liquid

TotalBoat Table Top Epoxy is renowned for its exceptional waterproof ability. Whether used for coating table tops, countertops, or other surfaces, this epoxy creates a waterproof barrier that protects against water damage, spills, and stains, ensuring long-lasting results. All ingredients in the product are USDA-approved for contact with food, ensuring a food-safe product.

Puduo Epoxy Resin Kit for Art

Create stunning and waterproof art projects with puduo epoxy resin kit, the best choice (source: amazon)
Create stunning and waterproof art projects with puduo epoxy resin kit, the best choice (source: amazon)
  • Brand: Puduo
  • Uses: Jewelry, tabletop, bar top, live edge tables, fast curing
  • Compatible Material: Glass
  • Item Form: Liquid

PUDUO Epoxy Resin offers a new product specially designed with a powerful anti-yellowing agent, ensuring long-lasting high-gloss finishes that resist fading and yellowing. With superior UV resistance, this epoxy resin will maintain the quality of your projects for an extended period, keeping them looking fantastic.

Dr. Crafty Clear Epoxy Resin Kit

Dr. Crafty clear epoxy resin kit keeps your artistic creations safe and vibrant with its waterproof protection (source: amazon)
Dr. Crafty clear epoxy resin kit keeps your artistic creations safe and vibrant with its waterproof protection (source: amazon)
  • Brand: DR. CRAFTY
  • Uses: Craft like earrings, necklaces, pendants, or coat entire pieces of furniture 
  • Compatible Material: Wood, Plastic
  • Item Form: Liquid

This epoxy resin kit is specially designed to provide a strong and durable seal that prevents water damage and ensures long-lasting protection for various surfaces. In addition to its waterproof ability, this kit also boasts characteristics such as high clarity, UV resistance, and easy application, making it a versatile choice for a wide range of projects.

ArtResin Epoxy Resin

Artresin epoxy resin is like a trusty umbrella, keeping your art safe and beautiful (source: amazon)
Artresin epoxy resin is like a trusty umbrella, keeping your art safe and beautiful (source: amazon)
  • Brand: ArtResin
  • Uses: Resin jewelry and accessories, custom-made coasters, trays, and other functional art pieces,...
  • Compatible Material
  • Item Form: Liquid

ArtResin provides outstanding waterproofing due to its unique formula that ensures a strong, durable, and protective finish. It offers a product free of VOCs and BPA, with no fumes and non-flammability. This resin is also food-safe and UV and HALS stabilized, ensuring long-lasting protection against yellowing.

Rust-Oleum EpoxyShield Garage Floor Coating

Protect your garage floors from stains and spills with rust-oleum epoxyshield garage floor coating (source: crop)
Protect your garage floors from stains and spills with rust-oleum epoxyshield garage floor coating (source: crop)
  • Brand: Rust-Oleum
  • Uses: Concrete floors in basements, workshops, and garages
  • Compatible Material:
  • Item Form: Liquid

This easy-to-apply coating resin provides a clean, glossy finish that is 5 times stronger than 1-part epoxy, protecting against various elements like gasoline, antifreeze, and hot tire pick-up. With a quick dry time, indoor use, and low odor, this coating promises years of durable protection with a beautiful shine.

Crystal Clear Epoxy Resin One Gallon Kit

This crystal clear epoxy resin one gallon kit is truly the best waterproof epoxy resin (source: indiamart)
This crystal clear epoxy resin one gallon kit is truly the best waterproof epoxy resin (source: indiamart)
  • Brand: Crystal Clear
  • Uses: Use for super gloss coating
  • Compatible Material: Wood, metal, stone, plastic, marine sealer
  • Item Form: Liquid

The Crystal Clear Epoxy Resin One Gallon Kit offers exceptional waterproofing abilities, making it an ideal choice for various DIY projects or professional applications. This kit provides a durable, long-lasting waterproof coating that can be used on a wide range of surfaces, such as countertops, tables, and floors. 

MAS Table Top Pro Epoxy Resin & Hardener

Mas table top pro epoxy resin & hardener is simply the best for waterproof projects (source: amazon)
Mas table top pro epoxy resin & hardener is simply the best for waterproof projects (source: amazon)
  • Brand: MAS
  • Uses: Ideal for tabletops, bar tops, wood furniture, signs, artwork, DIY crafts
  • Compatible Material: Acrylic, wood
  • Item Form: Liquid

MAS Table Top Pro Epoxy Resin & Hardener is highly waterproof, making it ideal for use on surfaces that may come into contact with moisture or water. In addition to its waterproof ability, this epoxy resin is also heat-resistant, scratch-resistant, and UV-resistant, ensuring durability and longevity for various projects and applications.

Conclusion

To sum up, is resin waterproof? Resin is indeed waterproof once it has fully cured. It is suitable for a wide range of applications such as DIY projects, crafts, and even outdoor use. By allowing resin to cure completely, you can ensure that your creations are water-resistant and durable for long-lasting enjoyment. 

FAQs

Does Epoxy Make Wood Waterproof?

Epoxy is an effective solution for making wood waterproof by applying it as a protective coating or encasing wooden pieces. Once fully cured, epoxy creates a waterproof barrier, commonly used on table and kitchen tops to safeguard against water, scratches, and dirt, ensuring the longevity and durability of the wood underneath.

Are all types of resin waterproof?

Most epoxy resin becomes waterproof once it cures. This characteristic is a key reason why epoxy is an exceptional sealant. When it's fully bonded and cured, epoxy can effectively block nearly all forms of liquid or solid substances, including water and humid air.

What materials can be made waterproof with epoxy sealant?

Epoxy sealant can waterproof a variety of materials including wood, metal, concrete, glass, and even some plastics.

How long before resin is waterproof?

Once the resin is fully cured, it becomes waterproof. The curing time varies depending on the type of resin used, ranging from a few minutes with Polyurethane Resin to 24 - 72 hours. Art resin typically cures faster than resin paint, while UV resin can cure within minutes under UV light exposure.

Tags:

Leave a comment

Your email address will not be published. Required fields are marked *