Making an outdoor sign waterproof is a great way to protect it from the elements. If you live in a climate where it rains often, or if your sign is located near a body of water, then waterproofing it is a must. In this blog post, we will discuss the best way to waterproof your outdoor sign. We will also provide tips on how to keep your sign looking good for years to come!
How to Make an Outdoor Sign Waterproof?
Step 1: Clean the surface
The first step to waterproofing your outdoor sign is to clean the surface. This will ensure that the waterproofing material will be able to adhere properly. Use a mild soap and water solution to scrub away any dirt or grime.
Step 2: Apply primer
Once the sign is clean, apply a coat of primer. This will help the waterproofing material to better adhere to the surface. Allow the primer to dry completely before proceeding to the next step.
Step 3: Apply waterproofing material
There are a variety of different materials that can be used to waterproof your outdoor sign. Some common options include latex paint, epoxy, or polyurethane. Apply the material of your choice according to the manufacturer’s instructions.
Step 4: Allow to dry
Once the waterproofing material has been applied, allow it to dry completely. This may take several hours or even a day or two. Once it is dry, your sign will be better protected from the elements.
Step 5: Touch up before applying polyurethane
If you are using latex paint or epoxy, you may want to touch up the sign before applying a top coat of polyurethane. This will help to ensure that the final product is smooth and even.
Step 6: Apply a top coat of polyurethane
For added protection, apply a top coat of polyurethane. This will create a barrier that will help to keep moisture out. Allow the polyurethane to dry completely before using the sign.
Following these steps will help to ensure that your outdoor sign is well protected from the elements. By taking the time to waterproof your sign, you can extend its life and keep it looking its best for years to come. 
Why It’s Important to Waterproof Outdoor Signs
Choose the Right Type of Base Wood
Waterproofing your outdoor sign is important, and one of the best ways to do it is to use the right type of base wood. Some woods are more resistant to water damage than others, so it’s important to select a material that will be able to withstand the elements. One of the best options for an outdoor sign is cedar. Cedar is a durable wood that is naturally resistant to rot and decay, making it an ideal choice for a sign that will be exposed to the elements.
If you’re using a different type of wood for your sign, you can still make it waterproof by adding a layer of sealant. A sealant will help protect the wood from moisture and prevent it from warping or breaking down over time. When applying a sealant, be sure to follow the manufacturer’s instructions carefully.
Use Marine-Grade Hardware
Another way to make your outdoor sign waterproof is to use marine-grade hardware. This type of hardware is designed to resist corrosion, so it will stand up well to the elements. When selecting hardware for your sign, look for products that are made from stainless steel or other corrosion-resistant materials. 
Consider Putty Application
If you’re looking for a way to waterproof your outdoor sign without changing the material, you may want to consider the putty application. Putty is a water-resistant material that can be applied to the surface of your sign. Once the putty has dried, it will create a barrier that will prevent water from seeping in and damaging the wood.
Applying putty to an outdoor sign is a fairly simple process, but it’s important to follow the instructions carefully. Be sure to apply an even layer of putty to the entire surface of the sign. If you’re not sure how much putty to use, consult the manufacturer’s instructions.
Things to Avoid When Waterproofing Outdoor Signs
Waterproofing your outdoor sign is important to keep it looking new and fresh for years to come. But there are a few things you should avoid doing when waterproofing to ensure the best results. Here are four things to avoid:
- Don’t use an oil-based sealer. Oil-based sealers can actually cause the paint on your sign to peel and chip over time. Stick to using a clear polymer sealer or a water-based sealer instead;
- Avoid using too much sealer. You don’t want your sign to be so coated in the sealer that it becomes difficult to see. A thin layer of sealer is all you need to protect your sign from the elements;
- Don’t apply sealer in direct sunlight. The heat from the sun can cause the sealer to dry too quickly and produce a less-than-ideal finish. It’s best to apply sealer in cooler, shaded areas;
- Avoid using cheap sealers. Cheap sealers may not provide the same level of protection as more expensive options. When it comes to waterproofing your outdoor sign, you get what you pay for. Stick to using high-quality sealers to ensure optimal results;
By following these tips, you can avoid making common mistakes that can jeopardize the longevity of your outdoor sign. Waterproofing your sign is an important step in prolonging its lifespan and keeping it looking its best for years to come. 
Types of Outdoor Signs
There are three primary types of outdoor signs: those made of wood, those made of metal, and those made of PVC or other plastics. Each type of sign has its own advantages and disadvantages when it comes to waterproofing.
Waterproofing Outdoor Signs Made of Wood
Wooden signs are very popular because they have a classic look that can complement any type of architecture or landscaping. However, wooden signs can be difficult to waterproof. The best way to waterproof a wooden sign is to use a sealant such as polyurethane or varnish. Be sure to apply the sealant evenly and allow it to dry completely before hanging the sign outdoors.
Waterproofing Outdoor Signs Made of Metal
Metal signs are more durable than wooden signs, but they can still be damaged by water if they are not properly sealed. The best way to waterproof a metal sign is to use a clear coat sealant designed for outdoor use.
Waterproofing Outdoor Signs Made of PVC or Other Plastics
PVC and other plastic signs are the most waterproof type of sign, but they can still be damaged by UV rays from the sun. The best way to protect a PVC or plastic sign from the sun is to use a UV-resistant clear coat sealant. 
How to Seal a Wood Sign with Vinyl Lettering?
Here are a few ways to make your wood sign with vinyl lettering waterproof. You will need to purchase a clear sealer that is meant for outdoors, such as an acrylic urethane or polyurethane. You will also need a clean cloth and soapy water.
To start, clean the surface of your sign with soapy water and cloth. This will remove any dirt or debris that could prevent the sealer from adhering properly. Once the sign is clean, allow it to dry completely before proceeding.
Next, apply the sealer to the sign according to the manufacturer’s instructions. Be sure to cover all surfaces of the sign, including the edges and sides. Allow the sealer to dry completely before hanging your sign outdoors.
With these simple steps, you can easily waterproof your wood sign with vinyl lettering and protect it from the elements. 
How to Seal an Outdoor Painted Sign?
Once you have chosen a waterproofing product, follow the manufacturer’s instructions for application. Generally, the product should be applied in a thin coat and allowed to dry completely before applying a second coat. Be sure to test the waterproofing product on a small area of your sign first to ensure that it does not cause any adverse effects, such as fading or bleaching.
How Many Layers of Sealer Should You Use on an Outdoor Sign?
You’ll need to use at least two coats of sealer on your outdoor sign to make it waterproof. The first coat should be a primer, and the second coat should be a sealant. You may need to use more than two coats if your sign is exposed to harsh weather conditions or if it’s made from porous materials. 
What Are the Best Outdoor Sealers for Signs?
There are many different sealers available on the market that can be used to waterproof your outdoor sign. The best sealer for your particular sign will depend on the type of material it is made out of and the type of finish you want to achieve. Here are some of the most popular types of sealers that are used to waterproof signs:
1. Polyurethane Sealer
Polyurethane sealers are a great option for waterproofing signs because they provide a clear, durable finish. This type of sealer can be applied with a brush or roller and will dry to a hard, glossy finish. Polyurethane sealers are also resistant to UV rays, making them ideal for outdoor use.
2. Epoxy Sealer
For an outdoor sign that will be exposed to the elements, you need a sealer that can withstand moisture and UV rays. Epoxy is a great option for waterproofing your sign. It’s a two-part resin that cures to form a hard, durable finish. You can apply it with a brush or roller, and it dries quickly. Once it’s dry, it’s completely waterproof and weatherproof.
Shellac is a natural resin that’s derived from the lac beetle. It dries quickly and forms a hard, protective coating. Shellac is also resistant to moisture and UV rays, making it a good choice for waterproofing your sign. 
Varnish is another option for waterproofing your sign. It’s available in both water-based and oil-based formulations. Varnish dries to form a hard, glossy finish that’s resistant to moisture and UV rays.
Applying any of these sealers will help to waterproof your outdoor sign and protect it from the elements. For best results, apply two coats of sealer, allowing each coat to dry completely before applying the next.
When Should You Waterproof Outdoor Signs?
The best time to waterproof your outdoor sign is before you install it. This will protect the sign from weather damage and extend its lifespan. However, you can also waterproof signs that are already installed. If you notice any water damage, such as peeling paint or warped wood, it’s important to waterproof the sign as soon as possible to prevent further damage.
What Does It Cost to Waterproof an Outdoor Sign?
It can cost anywhere from a few hundred to a few thousand dollars to waterproof an outdoor sign. The price will depend on the size of the sign and how many coats of waterproofing material you need to apply. If you are hiring a professional to do the job, expect to pay closer to the higher end of that range.
Hire a Professional vs Do It Yourself?
It’s common for business owners to want to take on every project themselves in order to save money. While this is understandable, there are some projects that are better left to the professionals. Waterproofing your outdoor sign is one of those projects. Here’s why:
- There’s more to it than just a coat of waterproof sealant
If you’re not familiar with the process of waterproofing, you might think that all you need to do is apply a coat of waterproof sealant and you’re good to go. However, there’s a lot more to it than that. In order to properly waterproof your sign, you need to take into account the materials it’s made from, the climate it will be exposed to, and the type of sealant that will work best.
- The wrong sealant can actually cause more damage than good
Not all waterproofing sealants are created equal. In fact, some can actually do more harm than good. If you’re not familiar with the different types of sealants and which ones are best for your sign, you could end up causing more damage than you’re trying to prevent.
- Professional waterproofing will make your sign last longer
When done correctly, waterproofing will extend the life of your sign. Not only will it protect it from the elements, but it will also help to prevent fading and other damage that can occur over time.
- It’s a good investment for your business
Investing in professional waterproofing for your outdoor sign is an investment in your business. A well-protected sign will last longer and look better, which will reflect positively on your company. In the long run, professional waterproofing will save you money by prolonging the life of your sign.
- You’ll have peace of mind knowing your sign is properly protected
Waterproofing your outdoor sign is an important step in protecting your investment. When you hire a professional to do the job, you can rest assured knowing that it’s been done correctly and that your sign is properly protected.
If you’re not sure whether or not professional waterproofing is right for your sign, contact a local expert today. They will be able to assess your sign and recommend the best course of action.
How do you seal outdoor signs?
There are a few different ways that you can seal outdoor signs to make them waterproof. You can use a clear coat sealer, a polyurethane sealer, or a resin-based sealer. You will want to make sure that you follow the manufacturer’s instructions on how to apply the sealer and how many coats to apply.
Can you spray paint outdoor signs?
Yes, you can spray paint outdoor signs. However, you will need to use a special kind of paint that is designed for outdoor use. You will also need to make sure that you apply several coats of paint to the sign so that it is completely covered.
What is the best way to weatherproof an outdoor sign?
Waterproofing your outdoor sign is a great way to protect it from the elements and extend its lifespan. There are a few different ways you can waterproof your sign, depending on the materials it is made of and the level of protection you need. If your sign is made of wood, you can use a sealant or varnish to waterproof it. For added protection, you can also add a layer of polyurethane. If your sign is made of metal, you can use rust-resistant paint or primer to protect it from moisture and corrosion. For plastic signs, you can use a clear sealant to help keep them looking new.
How do you seal wood crafts?
To make your wood craft waterproof, you will need to use a sealer. You can purchase a sealer at most hardware stores. Follow the directions on the package for the best results. Apply the sealer evenly over the entire surface of the wood craft. Allow it to dry completely before using or displaying your craft.
What kind of wood should I use for an outdoor sign?
The best type of wood to use for an outdoor sign is pressure-treated lumber. Pressure-treated lumber is treated with chemicals that help it resist rot and decay. It is a good idea to choose a piece of pressure-treated lumber that is thick enough to withstand the elements. You can also use cedar or redwood for your outdoor sign. These woods are naturally resistant to rot and decay.
Can you put a clear coat over the vinyl decals?
Yes, you can put a clear coat over vinyl decals. This will help protect the decals from fading and peeling. It is best to use a clear coat that is designed for use on vinyl. Follow the directions on the package for the best results. Apply the clear coat evenly over the entire surface of the decals. Allow it to dry completely before using or displaying your craft.
Can you use Mod Podge to seal the vinyl?
Vinyl is a great material for signs because it’s durable and weather-resistant. However, if you want to protect your vinyl sign from the elements, you’ll need to seal it with a waterproof coating. Mod Podge is a popular craft glue that can also be used as a sealant. It’s water-based, so it won’t damage your vinyl sign like some other waterproofing products. To use Mod Podge to waterproof your outdoor sign, simply brush on a thin layer of glue and allow it to dry. You can apply multiple coats for extra protection.
Useful Video: How To Seal Vinyl For an Outdoor Sign
When it comes to waterproofing your outdoor sign, there are a few different options that you can choose from. Each option has its own set of advantages and disadvantages, so you’ll need to decide which one is best for your particular needs. If you’re looking for the most durable option, then you’ll want to go with a sealant or a laminate. If you need something that’s quick and easy to apply, then tape or a waterproofing spray may be the best option for you. Whichever route you choose, just make sure that you take the time to do it right so that your sign will last for years to come.