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4.9 out of 5 stars. 91 reviews
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Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995

  • Limited Time Deal

Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995

Item # 210459299

Dap Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995
Dap Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995


Spend $49.99 to unlock free delivery!

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  • Limited Time Deal

Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995

Item # 210459299

Dap Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995
Dap Dap 18388 10.1 oz. Ultra Clear All Purpose Flexible Sealant, 368995

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DAP Ultra Clear Flexible Sealant is a premium, all purpose, ultra elastic, ultra clear sealant for sealing & patching a wide variety of surfaces & projects. Use it to seal out air, water, & moisture for a durable, 100% waterproof & weatherproof seal. Stays flexible & crack-proof even in cold weather. Sealant does not yellow & is clearer than silicone.

  • Ultra Flexible & Crackproof even in Cold Weather
  • Immediate Water Ready - Won't Wash Out
  • Strong Multi-Surface Adhesion
  • Stays crystal clear / non-yellowing
  • Adheres to wet or damp surfaces

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Reviews

Rating Snapshot

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79 reviews with 5 stars.
11 reviews with 4 stars.
1 review with 3 stars.
0 reviews with 2 stars.
0 reviews with 1 star.

Overall Rating

4.9
86 out of 87 (99%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
The sealant is easy to apply, dries quickly, and creates a clear, invisible seal that does not yellow over time. Customers report using it successfully in bathrooms, around windows, and other areas that require a waterproof seal, effectively preventing leaks and air drafts. The sealant is praised fo...
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This summary is AI-generated from ratings and reviews across multiple languages.
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5 to 34 of 91 Reviews .
1 – 30 of 91 Reviews
Michigan
Review 1

Who can read the instructions?

6 years ago
I've used this tube for numerous fix it tasks around the house. Several times on my marine aquariums. It works very good. I'm trying to find out the dry/cure time, but haven't found a source yet. The print on the clear tube is impossible to read.
ConsHow long to dry/cure? I'm on Dap's website too, I can't read the tiny print.

Yes, I recommend this product.

Originally posted on DAP.com

Knoxville Tn
Review 1

Great sealer...

7 years ago
Great easy to use seals great...

Yes, I recommend this product.

Originally posted on DAP.com

oh
Review 1

I will use this product again.

7 years ago
We used the product on a few smaller projects in areas that were going to be noticable to guest and we were trying to avoid allowing them to see. This DAP product was great for that, we needed it near areas with frequent water usage. It was easy to apply, it is not visible. The only issue was the feeling of the product after drying. I would have preferred a more smoother feel. But no leaks, no issues, and it is not visible which was imporatant to us.

Yes, I recommend this product.

Originally posted on DAP.com

Chicago,IL
Review 1

Works good stays clear.

7 years ago
Easy to use,follow instruction to get better results. Its crystal clear,Mildew resistant and needs to be applied atleast 20 F.Its also paintable and waterproof.Overall a new and improved product from DAP.

Yes, I recommend this product.

Originally posted on DAP.com

New York
Review 1

My go-to choice for clear sealant!

7 years ago
Use this to go around window frames, door frames, roof vents and any seams/edges in my camper that need to be gone over for extra waterproofing protection. I like that it's flexible and ultra clear. I would use it again and recommend it to others over other brands.

Yes, I recommend this product.

Originally posted on DAP.com

Minnesota
Review 1

Awesome product

7 years ago
I love this product. It was easy to use and worked well--the first time I used it.

Yes, I recommend this product.

Originally posted on DAP.com

Chicago
Review 1

Durable and waterproof

7 years ago
I used DAP to re-seal my bathroom sinks and I am very happy with the results. The seal is barely visible and keeps the water out. Great results.

Yes, I recommend this product.

Originally posted on DAP.com

ohio
Review 1

dap

7 years ago
we used it and it was great . very easy for me to use around the bathtub and sealed very well

Yes, I recommend this product.

Originally posted on DAP.com

Madisonville, TN
Review 1

I definitely recommend this product!

7 years ago
We used DAP to seal the cracks around our door and windows. It works very well with low odor and it can barely be seen once applied. We are definitely purchasing more to finish around the house. Thanks for introducing us to a great product!!

Yes, I recommend this product.

Originally posted on DAP.com

Wpb fl
Review 1

I would purchase this product

7 years ago
We used the product to seal the molding on the front door. It was easy to use and dried fast. Worked really well.

Yes, I recommend this product.

Originally posted on DAP.com

Missouri city
Review 1

Great And seal proof

7 years ago
I highly enjoy fixing things myself and I'm also very good at it. the Ultra Clear Premium Flexible All Purpose Waterproof Sealant 10.1 oz cartridge - Clear, Really got the job done for my bathroom project I had. My favorite thing about it was that it is clear and that's why I recommend it.

Yes, I recommend this product.

Originally posted on DAP.com

Allentown, PA
Review 1

highly recommend

7 years ago
At first I was reluctant to write a positive review. I used this to seal a crack a spot in the toilet bowl tank. I think it was my own fault because when I reapplied it worked fine. My call out would be to apply it to a dry surface and allow it to dry completely. In the bathroom it was strong smelling. I would also suggest ventalitng the are or using this before you leave the house for an hour or so.

Yes, I recommend this product.

Originally posted on DAP.com

Saylorsburg
Review 1

I would buy this product!

7 years ago
Great product! Used it to seal the windows in my kitchen and love that it's clear and you can't tell it was used!

Yes, I recommend this product.

Originally posted on DAP.com

Wheaton IL
Review 1

The best!

7 years ago
The Ultra Clear Premium Flexible All Purpose Waterproof Sealant 10.1 oz cartridge is very easy to use & provides a very tight seal. I would definitely buy this again. Highly recommend.

Yes, I recommend this product.

Originally posted on DAP.com

Missouri City
Review 1

Sealant to the fullest

7 years ago
the Ultra Clear Premium Flexible All Purpose Waterproof Sealant 10.1 oz cartridge - Clear, Is by far one of the most manageable and use for sealants are used I recommend this because it is all purpose. Anywhere you might need to see you put it and keep going come back and it's ready.

Yes, I recommend this product.

Originally posted on DAP.com

Hattiesburg, MS
Review 1

So easy to use

7 years ago
Ultra Clear Premium Flexible All Purpose Waterproof Sealant 5.0 oz squeeze tube was very easy to use. We used it to seal windows and doors for thr winter and it has helped tremendously!

Yes, I recommend this product.

Originally posted on DAP.com

Fort Mill, SC
Review 1

Works great!

7 years ago
Great seal. Dries fast. Works as described.

Yes, I recommend this product.

Originally posted on DAP.com

Pompamo beach, FL
Review 1

Homeowners Lifesaver

7 years ago
I seriously use this for everything and anything that I can around my house. I love that this product is clear!!! Every other one that I find is always white and unfortunately the white stands out, and not always in a positive way!

Yes, I recommend this product.

Originally posted on DAP.com

Daytona
Review 1

Easy to use!

7 years ago
I couldn't get over how easy this was to use. If i didn't get a sample, I wouldn't have known how awesome it is!

Yes, I recommend this product.

Originally posted on DAP.com

Steamboat springs co
Review 1

Grea

7 years ago
The Ultra Clear Premium Flexible All Purpose Waterproof Sealant 5.0 oz squeeze tube- Clear was perfect for fixing the little cracks left behind on the room we just built! We used it to fill in some spots were we didn't won't air to come in and it worked like a charm! Fast sealing time and no smell!

Yes, I recommend this product.

Originally posted on DAP.com

Ohio
Review 1

Great sealing caulk

7 years ago
Resealed around kitchen sink with this DAP clear. The ooze was a bit messy, but it dried quickly and provided an excellent CLEAR seal once dry.

Yes, I recommend this product.

Originally posted on DAP.com

Henderson, NV
Review 1

Definitely Clear!

7 years ago
This sealant is really the best I have come across! It is see thru clear, not like a white clear - meaning you really can see right through it. That is what I like so much about it because it blends with what I use it on and you can barely tell I have used it. It stays in place - I did not see it droop or bubble up at all. I do a lot of do-it-yourself projects around my home and sealing in cracks or holding together is something I do a lot. I have never used DAP before but now it will be my go to. I also love that it is waterproof. It does not look like it will peel at all. I highly recommend if you do your own projects around the house and are looking for a clean, quality sealant.

Yes, I recommend this product.

Originally posted on DAP.com

NJ
Review 1

Ultra Clear Premium Flexible All Purpose Waterproof Sealant

7 years ago
Ultra Clear Premium Flexible All Purpose Waterproof Sealant has been working well for me compared to other sealants. Its waterproof which is a big deal for me since that's what I look for most. I had some cracks in my house where air was making it through, and I used the sealant to close it and I've had no issues since. It's also not noticeable which is great!

Yes, I recommend this product.

Originally posted on DAP.com

NYC
Review 1

Practically Invisible!

7 years ago
First off, make sure it's well ventilated wherever you're using this. But, the results are amazing and it's much much clearer than clear silicone as well. Almost looks like clear corn syrup, to give an idea of the translucency and viscosity of it while using it. Cure time is quick, more so, as usual, with low humidity. And as always, wear gloves! It's holding well enough, haven't observed any shrinkage or cracking yet, but it takes time and wear for that to start popping up with any product.

Yes, I recommend this product.

Originally posted on DAP.com

Glendale, AZ
Review 1

Works Great!

7 years ago
Works Great! Used to it to seal up a spot by the sink that has been neglected for years and this has held up wonderfully. It comes out very easily however the only drawback is the smell. It was a little strong for my standards. Other than that I would definitely recommend and this was the first time using this product.

Yes, I recommend this product.

Originally posted on DAP.com

San Pablo, CA
Review 1

Great sealer

7 years ago
Great sealer I used it on my kitchen sink because it needed some filler and it did the job great, I left it over night and by the next day it was ready to use. This is a great product and recommend to everyone if you are looking for a reliable easy to use product.

Yes, I recommend this product.

Originally posted on DAP.com

Michigan
Review 1

This worked great

7 years ago
I loved this product! I used this Ultra Clear Premium Flexible All Purpose Waterproof Sealant to seal up a leaking window in my bathroom. I also used it to seal up a few spots in my shower. My bathroom window use to like to leak when we would get rain. I used this sealant to fix it. It was easy and came out of the tube very smooth and at the right speed so that I didn't have a mess or use too much at once. I filled in the gaps where water was coming in and left it alone for 6 hours. When I came back to see how it was working I noticed that it was 100% dry in the area where it usually leaks! It was raining pretty hard so I know that it will hold up and that it works so wonderful. When I used it on my shower I made sure that I kept a paper towel handy so that if some dripped or came out to fast then I wouldn't have a mess all over my shower. I didn't even need the paper towel because I had zero mess. Everything came out smooth and easy. I used it on 3 different spots to close off the gap where my old sealant had came off. This dried quick, was clear and it also turned very firm so it wont just fall back off. I had not seen this product before using it and I am glad I gave it a try. I will not use any other kind of sealant again as this one is so easy to use. I highly recommend this sealant it works great and is super easy to use.

Yes, I recommend this product.

Originally posted on DAP.com

Forest Grove, Oregon
Review 1

Wow!! Seals out water amazingly!

7 years ago
I used this product on my windows and gutters outside so far! Living in Oregon waterproof is a must and it is holding up so well! I love being able to put it on nearly anything and am 100% confident about its waterproof aspect and its completely clear so no one can even see it's there! It has a strong hold too, it's not peeling or falling off at all! I can't wait to take this to the bathroom and re seal everything in this old house!

Yes, I recommend this product.

Originally posted on DAP.com

Rochester ny
Review 1

Great product

7 years ago
I used this product to seal up my kitchen sink an it works great. Applied very easily and clean up wasnt as bad as other brands of the same product.ill deft be picking more up .

Yes, I recommend this product.

Originally posted on DAP.com

Portland Or
Review 1

Fantastic, way to go DAP

7 years ago
My husband actually just re did our whole entire bathroom and this is what we used and we are super excited to have been chosen to be able to test this product out for our feedback. I'm super excited my bathroom can not wonderful I definitely have no worry or wonder what this product 100% flexible all purpose and waterproof you cannot go wrong with that

Yes, I recommend this product.

Originally posted on DAP.com