Best Caulk For Gutters : Top 9 Picks Reviewed 2022

Look: living in a house with leaking gutters is not fun. From experience, you’ll agree with me how frustrating when your gutters simply won’t do their job. And because of this, you dread it when it rains since everything goes out of hand at this time.

But here’s the solution: What if you could find the best caulk for gutters once and for all? Truth be told, for peaceful and stress-free night sleep or rest, you need to seal your leaking gutters. But here’s the problem:

With tons of information and caulk for gutters to consider, settling on the best offer can be such a daunting task. That’s why you need to do due diligence, lest you make the wrong call that gets you blaming yourself.

The good news is that I got your back on this. After careful research, I have compiled a detailed review of the top 9 caulk products you can consider. Sounds like a plan, right? So, without further ado, let’s get down to business!

In a Hurry? Here’s Our Top Choice:



Editor's Rating


Flex Shot Rubber Caulk

5 Out of 5

Loctite Clear Silicone Waterproof Sealant

5 Out of 5

Dap 18110 Acrylic Latex Caulk With Silicone

5 Out of 5

Gorilla 100 Percent Silicone Sealant Caulk

4.5 Out of 5

GE Sealants & Adhesives GE012A All Purpose Silicone 1 Sealant

5 Out of 5

Top 9 Best Gutter Caulk Reviews in 2021

1. Flex Shot Rubber Caulk

Guess what: after looking into what caulk to kick off this review, I must confess that it was a tough call to make. Nevertheless, I found one product that’s versatile, highly effective, and suitable for a myriad of other purposes.

And by that, here’s what I mean. Flex shot rubber caulk is top of its game and you can use it in other areas. So, it doesn’t have to be only about gutters. Simply buy one, and use it for other home improvement tasks.

Other areas you can use this caulk are; kitchen and baths, sinks and showers, tubs and tiles, windows, and skylights. If you’re thinking that’s all, then let me surprise you further. You can also use it on autos and boats, RV’s and Campers, and PVC pipes.

Besides, it easy to use and passes for the best caulk for gutters. Why do I make such a bold claim? You’re probably wondering. See, you can use this caulk to seal and to bond almost everything. And to top it off, you don’t need a caulking gun to apply it.

Plus, you only need to apply just a little of it. This is because it’s waterproof and expands to fill up any cracks, holes, and joints on your gutter. Thereby preventing any further leaking. The truth is that you want stress-free and peaceful nights when it rains.

That’s why I’d recommend this product to you. Moreover, it’s available in four colors. If you’re keen on detail, you can grab this opportunity to pick the caulk that matches your gutter.

Highlighted Features

  • Easy to use and doesn’t require a caulk gun.
  • Expands and contracts depending on the weather.
  • Completely waterproof.
  • Has a capacity of 8 ounces thus suitable for large projects.
  • Multifunctional and can be used for multiple purposes.

2. Loctite Clear Silicone Waterproof Sealant

Do it yourself tasks feel enjoyable when you have the right gear in your arsenal. And this applies to sealing your gutters as well. Let’s face it: you need to stop the leaking immediately, lest the water damages everything in the house.

If you’ve ever wondered how to deal with this, you surely need to try out the best gutter sealant. Think of it this way: one that’s easy to use, creates strong bonds, is compatible with most surface materials, and is waterproof.

If you ask me, the right caulk that meets the above criteria, Loctite clear Silicone waterproof sealant is it. Plus, it’s the ideal size for small size projects. At 2.7 ounces, you can use it to permanently seal the hole on your gutter.

Besides, it’s waterproof. This only means no water can pass through the closed opening on the gutter no matter how big it was. Unlike other sealants, this one is versatile and works perfectly on multiple surface types.

Thus, you can comfortably buy one to apply on either of the following; porcelain, wood, fiberglass, glass, ceramic, plastic, metal, rubber, and marble. As you can see, the list is endless and one caulk sealant is all you need to get your work underway.

Highlighted Features

  • Available in a small size of 2.7 ounces and suitable for light projects.
  • Works well on multiple surface types like glass, metal, plastic, rubber, etc.
  • Creates strong bonds and is waterproof.
  • Doesn’t crack, peel or shrink.
  • Impact-resistant and flexible.
  • Resistant to extreme temperatures.

3. Dap 18110 Acrylic Latex Caulk With Silicone

Different gutter sealing projects require different amounts of caulk adhesive. And it goes without saying that large projects need large volumes of caulk. The opposite is true for small gutter sealing tasks.

Think about this: how would you feel if you couldn’t complete a task because you ran out of caulk? Disappointed, right? To avoid such bizarre experiences, you need to have the correct volume of caulk for your gutter sealing.

Let me guess, you’re probably asking where you’d find such a product. Well, you don’t need to look further because DAP 18110 Acrylic Latex caulk has your back. This is because it’s available in 10.1 fluid ounces which is enough for large projects.

Besides, this caulk is easy to use and dries in under 30 minutes. You’ll agree with me that this is the fastest way to seal your leaking gutters once and for all. Plus, do you know what makes it more efficient? It’s the fact that it’s 100% waterproof.

If you’re thinking of painting the gutter after sealing the holes, then you’d need a caulk that’s paintable. To say the least, this product is paint friendly and after full cure, you can effortlessly paint the gutter. This is a great way of giving it a new look.

Highlighted Features

  • Hybrid caulk containing both silicone and acrylic latex caulk.
  • Available in 10.1 fluid ounce and can be used for large DIY projects.
  • It’s an all-purpose caulk that’s compatible with most surfaces.
  • Easy to use and cures in under 30 minutes.
  • Paintable after the surface is dry.
  • Strong and shrinks less for long-lasting seals.
  • 100% waterproof and easy to clean.
  • Produces Low odor which enhances comfortability during application.

4. Gorilla 100 Percent Silicone Sealant Caulk

Mold and Mildew though are different types of fungi, have one thing in common—weakening of joints. If they find a fertile surface, they’ll grow on it while in the process weakening it. That’s why you want to keep away from them as much as possible.

But this gets much worse when your already sealed gutter suffers a mold and mildew attack. Do you know what this means? Simple! You most likely will have to reapply the caulk to the gutter again. Fortunately, it doesn’t need to get to this.

That’s why you need to only use Gorilla Silicone sealant caulk. So, why would I recommend it? This is one of the few caulk products which is mold and mildew resistant. Therefore, after application, you can rest assured the caulk will stay on the gutter for longer.

Moreover, it’s available in 2.8 fluid ounce capacity. This makes it ideal for whoever has a small DIY gutter task but doesn’t want to buy a lot of caulk. If this is like you, then, I’d recommend that you give Gorilla sealant caulk a shot.

Also, it’s 100% waterproof which makes it efficient at preventing further gutter leaking. If you want an assurance that what you’re buying is efficient, then you need to check the waterproof rating. This is where Gorilla Sealant caulk comes in to save the day.

Highlighted Features

  • Has a capacity of 2.8 ounce and suitable for light projects.
  • Resistant to mold and mildew which can weaken bonds.
  • Durable and doesn’t yellow, shrink, or crack.
  • 100% waterproof and completely prevents any leaking after application.
  • Suitable for indoor and outdoor use.
  • Cures in under 30 minutes and can be cleaned using water.
  • Multi-purpose and can also be used in the kitchen, bath, window, door, auto, and marine.

5. GE Sealants & Adhesives GE012A All Purpose

Manufactures and sellers promise how much their products can deliver. The sad part is that most of the time it’s pure hot air. And if you’re to go by just by a promise, you may be disappointed so badly. So, how can you protect your interest as a buyer?

What you need is a solid product warranty. This is the guarantee that if the caulk doesn’t work efficiently, you can hold the seller accountable. The sad truth is that not all dealers offer a warranty. But the good news is that GE Silicone sealant is different.

By buying this caulk, you’re entitled to a lifetime warranty. There’s no sweeter deal than this. In fact, this is one reason, I’d personally buy this caulk for my gutters. A lifetime warranty implies you’ll get full customer support for as long as you own the house.

But there’s more to this caulk than just the lifetime warranty. It is 100% waterproof and protects your gutters from water damage. Because of this, you can rest easy knowing that any sealed hole on your gutter will remain as it is.

Plus, it’s ready for exposure to rain after full cure which lasts a few hours. If your house is located in an area that experiences frequent rains, this caulk may be what you need. But that’s not all. It is also freeze-proof and sun-proof thus you can use it in any weather.

Highlighted Features

  • Suitable for surfaces that do not require repainting.
  • Backed by a product lifetime guarantee that protects buyers.
  • 100% weatherproof and works well in all types of weather.
  • Mold resistant for up to 7 years.
  • Flexible, durable, and leaves sturdy bonds.
  • Ready for rain exposure in a day.
  • Has a high volume capacity of 10.1 ounces for large projects.
  • Compatible with most surface types including metal, glass, and plastic.

6. DAP INC Premium Elastomeric Interior and Exterior Sealant

Some holes are tiny. While others are huge. Also, in your line of duty, you’ll notice some gutters have widely spaced joints while others are closely spaced. If your gutter has widely spaced joints, you’d definitely need the right caulk to fill the gap.

There are a few gutter caulks that are best suited for bigger joints. The good news, DAP INC 18416 Dynaflex 230 premium sealant has your back on this. This is the same reason I like this gutter caulk as it’s created for sealing 2 inches wide joints.

Moreover, large-sized gutters need tons of caulk to fix the leaking joints. This is simply non-debatable since it’s a fact. So, how should you go about this? Like it or not, you need the right caulk quantity to save you from the frustration of work stopping underway.

This caulk product has a large volume capacity of 10.1 ounces which makes it perfect for large-sized gutters. Alternatively, you can buy several small-sized caulk if you’re comfortable with the inconvenience they come with. But I know it won’t get to that.

If you’re looking for a gutter caulk with outstanding durability, is waterproof and paintable, you only need to think of DAP Dynaflex 230 premium caulk. Besides, it’s weather proof which means you can apply it in all types of weather—cold and hot.

Highlighted Features

  • Superior flexibility and crack proof make it long-lasting.
  • Has a high volume capacity for large size projects and quick fixes.
  • Suited for both interior and exterior use.
  • Best for sealing large-sized joints of 2 inches.
  • Dries completely in 2 hours and paintable afterward.
  • Easy to apply and to clean.
  • Works well with both natural and synthetic materials.
  • Formula combines a mixture of Acrylic Latex and silicone which makes the caulk hybrid.

7. Window & Door Max Shield All Weather

Window & Door Max Shield All Weather

After trying out a couple of gutter caulk, I noticed how most of the brands couldn’t stand hot weather. Because of this, they melted away leaving the already filled holes and gaps. Guess what happened next? The leaking continued like never before.

But that wasn’t the case with Max shield all-weather caulk for the gutter. After several instances of disappointments, the first thing that drew my attention to this caulk was how it’s 100% weatherproof. At least, this is one thing I really wanted.

Because of this, the caulk works perfectly well in all types of weather—both hot and cold. In hot weather, the formula is flexible and doesn’t heat up to melting away. This is how the caulk ensures all the joints and holes on the gutter are well covered.

But that’s not all: This caulk is also multi-functional. Meaning you can use it to fix your windows, doors, and sidings. And remember, this is only possible since the caulk is compatible with most building materials like wood, metal, plastic, and rubber.

Plus, some caulk formula is susceptible to mold attack. The problem is that mold eats up the caulk thereby weakening it. And before you know it, the gutter is leaking again. This is not the case for Max shield all-weather caulk because it’s 100% mold resistant.

Highlighted Features

  • Made from an advanced polymer acrylic latex for unmatchable strong bonds.
  • Multi-functional and can also be used to fix windows, doors, siding, flashing, and trim.
  • Highly flexible and has 800% stretch capability.
  • Made for sealing wide gaps of 3 inches.
  • The formula is smooth and easy to apply on any surface.
  • Easy to clean up using water.
  • Available in a high volume capacity of 10.1 fluid ounces.
  • Lifetime mold resistant.
  • 100% weatherproof and durable in all types of weather.
  • Paintable after 45 minutes of curing.

8. Red Devil 0826 100% Silicone Sealant

Since 1872, the Red Devil brand has been on top of its game by creating tools and chemical products for the building industry. Perhaps you’re still asking, “why the Red Devil brand?” see, this brand thrives at producing quality and dependable products.

So, if you’re looking for some reliable caulk for the gutter, you may want to try out Red Devil 0826 silicone sealant caulk. This is one of the best caulk formulas on the market that’s also produced by the Red Devil brand.

Besides, it’s a `100% silicone formula and ideal for general purpose use. Therefore, you’ll like it more since you can use it for other reasons apart from fixing gutters. By buying this caulk, you can use it to fix; windows, door frames, skylights, trim, and aluminum siding.

One thing that sets this product apart is how it creates strong, long-lasting, and weather-resistant seals. Because of this, you can rest easy knowing that leaking gutters is a by-gone story. And to top it off, you can apply the caulk in hostile weather conditions.

After sealing any hole or joints on your gutter, the caulk will stay on for 50 years. Imagine living in your house all these years without having to deal with issues of leaking gutters? I’m sure that’s what you want—to fix the gutters once and for all.

Highlighted Features

  • 100% silicone caulk formula and ideal for general purpose use.
  • Creates strong, long-lasting, and weather-resistant seals.
  • Has a durability time frame of 50 years.
  • Compatible with most surfaces like wood, plastic, and metal.
  • Crack, shrink, and peel resistant.
  • Suitable for both interior and exterior use.
  • Cures with a clear residue.
  • Multi-functional and can also be used on windows, door frames, skylights, trim, and siding.

9. 3M Dynatron Auto Seam Sealer Caulk

Think about this: some caulk formula for gutter can only work on bare surfaces. If your gutter has some paint on it, it means you’d have to first clear it off. How inconveniencing does that sound? You’re busy and you don’t want to be wasting much of your time.

At least that’s what we all want. That’s why you need a quick caulk formula that works perfectly well on both bare metals and painted surfaces. You know what? The time you spend clearing the surface is sufficient to handle other pressing stuff.

That’s why you can’t afford to think of caulk for gutters without mentioning 3M Dynatron auto seam sealer caulk. Trust me, it’s one of the best there’s on the market. Besides, it’s easy to apply on any surface. And cleaning it or applying paint is hassle-free.

Besides, it has a high adhesion quality and a fast curing time. In under 15 minutes, the gutter should be ready for use after applying the caulk. I find that impressive and I know you will too. The best part is that it’s permanently elastic and non-sagging.

Therefore, you’re assured it can never come off from the joints or holes on the gutter. Most importantly, the caulk formula is waterproof and never cracks. Other alternatives are applications include; fresh welds, floor seams, trunk seams, and drip rails.

Highlighted Features

  • Easy to apply and to clean.
  • Easy to paint after full cure.
  • Works perfectly well on bare metals and painted surfaces.
  • Permanently elastic, non-sagging, fast curing and lasts long.
  • Multi-functional and can also be used on fresh welds, floor seams, trunk seams, and drip rails.
  • Waterproof and crack resistant.

Caulk For Gutters - comparison table



Weather compatibility

Type of caulk

Caulking gun needed

Compatible surfaces

Flex Shot Rubber Caulk

8.2 Ounces

Both dry and wet

Adhesive caulk


Roofs and gutters, kitchen and baths, sinks and showers, tubs and tiles.

Loctite Clear Silicone

2.7 Ounces

Both dry and wet

Silicone Adhesive


Porcelain, wood, metal, plastic, glass, ceramic, and rubber.

Dap 18110 Acrylic Latex 

10.1 Ounces

Both dry and wet

Acrylic Latex caulk with silicone


Multi-surface caulk

Gorilla 100 Percent Silicone

2.8 Ounces

Both dry and wet

Silicone Caulk


Multi-surface caulk

GE Sealants & Adhesives GE012A All Purpose

10.1 Ounces

Both dry and wet

Silicone Caulk


Metal, wood, composite, brick, glass, PVC, fiberglass, vinyl siding.


10.1 Ounces

Both dry and wet

Acrylic Latex caulk with silicone


Natural and synthetic materials.

Window & Door Max Shield All Weather

10.1 Ounces

Both dry and wet

Acrylic latex caulk


Metal, wood, composite, brick, glass, PVC, fiberglass, vinyl siding.

Red Devil 0826

9.8 ounce

Both dry and wet

Silicone Caulk


Glass, ceramic, and metal

3M Dynatron Auto Seam 

12 ounce

Both dry and wet

Synthetic rubber


Metal and plastic

Gutters Caulk Buying guide

After that comprehensive and unmatchable review of caulk formula for gutters, I know you thinking to yourself, let me grab one product real quick. Yes, you’re right! But before then, you got to check out this buying guide.

Arguably, this is one of the most important parts of this guide if not the top most important. This is also the part you’ll discover everything you need to look into when buying the best caulk for gutters. I know you can’t wait enough to learn all these. So, let’s jump in!

Caulk For Gutter Buying Guide

1. Types of Caulk Formula

Not all caulk formula is made from the same material. To know what caulk product is best for your particular situation, first, check the material composition. Besides, each material composition has its ups and down which determines, durability, safety, ease of use, etc. Below are the main types of caulk material to look out for the next time you go shopping.

a. Acrylic Latex: This is one of the most common types of caulk on the market. From experience, acrylic latex caulk is easy to apply on any surface. Besides, it’s also easy to clean using soap and water and to paint after full cure.

This caulk is made for both porous surfaces and non-porous alike which makes it a good fit for anyone with these surfaces. Unfortunately, the main downside to this caulk is that it sometimes weakens when exposed to extreme temperatures.

b. Silicone: Like acrylic latex, this is the other common type of caulk formula. Compared to acrylic latex caulk, silicone is quite difficult to use. This means applying or replacing it will take a toll on you.

Also, some silicone caulk is not paintable and before buying the caulk, you’ll need to check if it has this feature. Especially if you want to repaint the gutter after applying the caulk. Plus, to clean it, you need to make available some spirit.

This may mean an extra expenditure cost if you don’t have a ready spirit for cleanup. Nevertheless, silicone caulk lasts longer and is best for non-porous surfaces. To top it all off, you’ll need this caulk if your gutter has expanding and contracting gaps.

c. Hybrid: This type of caulk is a combination of both acrylic latex and silicone caulks. Normally, hybrid caulk is top-notch in performance, high quality, and the best there’s in the market. This is because it features the best elements of silicone and acrylic latex caulks.

Also, it goes without saying that the hybrid caulk formula is more expensive than the other two. Hybrid caulk can also be referred to as specialty caulk. Many times, it’s because they’re manufactured for specific purposes.

Therefore, some brands make hybrid caulk for gutters, adhesives, blacktop and asphalt, concrete, exterior, fire retardants, roofs, windows, etc. Since you’re more concerned with finding caulk for gutters, you can consider one that’s specifically made for gutters. Nonetheless, a universal one would still do no harm!

2. Price Range

Truth be told, all caulk for gutters have different pricing. The main reason behind this is that they’re made by different companies. While some brands produce fairly affordable products, others are quite costly for reasons best known by them.

Also, the other thing that influences pricing is the type of caulk in consideration. Generally, hybrid caulk is more effective and specialized than silicone and latex caulk. Therefore, you’ll find that hybrid caulks are highly-priced.

This leads to the most important consideration when looking at price—quality and functionality. By this, I mean that you should let quality and functionality justify the price of a caulking product. It’s no secret some are highly-priced yet offer nothing substantial.

Thus it would be a grave mistake to make a buying decision purely on price. There’s also the tendency of going after lowly priced products. You surely want to avoid this temptation. In most cases, cheap is always expensive. “So, what should I settle on,” you’re probably asking.

Here’s the thing: if you’re looking for high-end products, you’ll need to think of hybrid caulk. However, for moderately priced products, silicone and acrylic latex will serve you well. Also, compare prices for 2-3 products and based on your budget, see what you can get for your gutter.

3. Personal Safety

Your personal safety should come first when considering any home improvement tool. And this doesn’t exempt caulk for gutters. Since the formula is made from different materials, they contain elements that may pose a health risk.

Because of this, it’s advisable to use some caulks in well-ventilated areas. This applies to the ones that produce choky fumes or odor that can affect your respiratory system. Besides, for such a kind of caulk, you’ll need to get a ventilator just to keep you safe from inhaling the harmful fumes.

Also, some caulk is flammable and can easily cause a fire. Therefore, you’ll need to use them in open areas and away from the fire causing agents. The best way to know if a caulk is safe for use or makes the cut is by checking the labels or warning signs on the can.

4. Magnitude of the Project

There are two forms of caulk—cartridge and squeeze tube. Normally, the cartridge type of caulk is usually large-sized and has a capacity of between 9 and 11 fluid ounces. On the other hand, squeeze tube caulk is small-sized and has a capacity of between 2 and 6 fluid ounces.

But this is only the starting point. Therefore, depending on the magnitude of your project, you can settle on what works best for you. For large projects, cartridge caulk would be the best fit. And for small-sized projects, a squeeze tube caulk would be ideal.

5. Weather Resistance

Weather affects caulk in different ways. To start us off, there are two variations of weather conditions. These include; moderate weather which is neither too cold nor too hot. And the harsh weather which is on the extremes of hotness and cold.

Therefore, before settling on a caulk, you first need to know the type of weather you’re dealing with. If your house is located in an area that experiences harsh weather, you’d need a weather-resistant caulk.

This is because you want the sealing on the gutter to be permanent and long-lasting. Thus, the perfect weather-resistant caulk is flexible and doesn’t melt in extremely hot weather. Besides, it is also easy to apply on any surface when the temperatures fall below the freezing point.

6. Curing Time

Curing time determines how fast you can expose the gutter to rain or water after applying the caulk. Ideally, you want the caulk to cure fast so that you get to put the gutter into use. There’s no doubt about that!

Normally, the best caulk for gutter shouldn’t take a maximum of one day to cure. But this is in extreme cases. You want to go for the caulk that dries in under one hour. Time is of the essence and you definitely need to focus on other things.

That’s why it’s vital to do due diligence by comparing curing time for all the products you’d buy. Then, based on your schedule and how fast you need to fix the gutter, you can settle on one brand that suits all your needs.

Frequently Asked Questions (FAQs)

What Do You Use To Seal Gutter Seams?

To seal gutter seams, you can use a range of caulk products such as 3M Dynatron sealer, Red Devil 0826 silicone sealant, or Max shield all-weather sealant. These products are waterproof, highly flexible, and works in extreme weather conditions.

What Is The Strongest Caulk?

The strongest caulk is made from a hybrid combination of silicone and acrylic latex. Because of this, it’s more reliable and effective than the ordinary caulk that’s only made from silicone or acrylic latex. Some examples include; DAP INC 18416 DAP DYNAFLEX 230 Premium Elastomeric Interior and Exterior Sealant and Dap 18110 Acrylic Latex Caulk With Silicone.

Can You Use Caulk On Gutters?

There are three types of caulk that you can use on gutters. These include silicone, acrylic latex, and hybrid caulk. Silicone is hard to apply on the surface while latex is quite easy to use. Also, silicone is stronger than latex hence more durable. You can also use a hybrid combination of both formulas which is usually more effective on gutters.

Do You Need to Caulk Gutters?

The main reason for caulking gutters is to seal any holes or loose joints. Gutters are meant to hold water especially when it’s raining. If there’s a leakage, it means you won’t be able to harvest enough water and some of the water will drop into the house. This may cause rust and damage to property. So, to avoid the inconvenience, it’s necessary to caulk gutters.

What Can I Use Instead Of Caulk?

You can use sealant tape to seal holes and open joints on gutters. However, you may not find it as effective as silicone or latex caulk.

Final Words

Finding the best caulk for gutters can be a frustrating experience. Especially when you don’t know what to look out for. That’s why you need the right information so that you make an informed buying decision.

For the record, the right caulk is waterproof, weather-resistant, cures fast, safe to use, easy to apply and to clean, and is quite affordable. Truth be told, there are tons of products to consider and it can really get confusing.

I’m glad you’ve read this guide to the end. Thumbs up for that. That’s why I’m persuaded you’re going to make an informed buying decision. Nothing can stop you now. It’s time to go fix your gutters!

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