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DAP 688 Purpose 100% Silicone Raw Building Material, 2.8 FL OZ, Clear, 2
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | DAP |
Material | Silicone |
Compatible Material | Rubber |
Item Form | Liquid |
Special Feature | Waterproof |
About this item
- Made in United States
Frequently bought together
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 3.9 x 3.9 x 8 inches; 3.2 ounces
- Item model number : 688
- Department : Unisex-Adult
- Date First Available : September 14, 2004
- Manufacturer : Dap
- ASIN : B000KE4PBQ
- Best Sellers Rank: #10,737 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #19 in Silicone Caulk
- #76 in Industrial Sealants
- #5,721 in Hardware
- Customer Reviews:
Product Description
Product Description
Use to build or repair aquariums. Provides a waterproof and watertight seal. Harmless to fresh and saltwater fish when cured. Will not crack or shrink. Meets ASTM Specification C290, Class 25, Type S, Grade NS.
From the Manufacturer
Long-lasting 100% silicone rubber helps build and repair aquariums. Provides a waterproof, watertight seal. Stays flexible. Won't crack or shrink. Non-toxic to fresh and saltwater fish when cured.
From the manufacturer
DAP All-Purpose 100% Silicone Adhesive Sealant
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- Interior/exterior
- Multi-material adhesion
- Flexible bond won't crack or shrink
- Safe for incidental food contact
- 100% waterproof bond
- Flexible
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, adhesion, quality and safety of the bonding adhesives. For example, they mention it works excellent, is stable and holds strong. Some appreciate the food and aquarium safe properties. That said, they are satisfied with ease of use. That being said, opinions are mixed on seal and clarity.
AI-generated from the text of customer reviews
Customers like the performance of the bonding adhesive. For example, they mention it works excellent, is very pleased with the results, and bonds well. Some say that it's messy and hard to work with, but can be easily cleaned up with a razor knife. Overall, most are happy with the product's performance and recommend it to others.
"...And it worked great!!! If you are looking for something you can use inside, try this. Great product." Read more
"...Now he drinks his hot coffee from it every day again. Worked exactly as we had hoped." Read more
"This works really well. Tacky enough to hold pieces together while curing. Easy to reposition pieces to get the right fit." Read more
"...I followed the directions and I'm very pleased with the results. I would use it again. It was more than enough for my project." Read more
Customers like the adhesion of the bonding adhesive. For example, they mention it's very firm, holds strong, and stable. Some say that the repair has held great. That said, most are happy with the product's adhesiveness.
"Easy to use, no mess. Bonded quickly. And able to use bowl as glue is non-toxic." Read more
"...It's visible that it was fixed, but it is nice and stable and usable and holding fine...." Read more
"...Process was not very hard to figure out, and the plate has been fine ever since. Goes through the microwave, dish washer, everything...." Read more
"...DAP needs to put a new better top on this tube, as this one invariably splits...." Read more
Customers are satisfied with the quality of the bonding adhesive. They mention it's a great product for crafts involving securing stones, gems, and other items. Some say that the product is great for aquarium projects.
"...It fixed it right up. It's visible that it was fixed, but it is nice and stable and usable and holding fine...." Read more
"...The handmade pour over is also sturdy and back in one piece. Excellent product." Read more
"This product is GREAT for aquarium projects, if you are iffy as of what sealant to get for your projects this one i truly recommend...." Read more
"...It smells obnoxiously of vinegar but it does the job. It will make a good, non-toxic, water-proof seal...." Read more
Customers are satisfied with the safety of the bonding adhesive. They mention that it is non-toxic, pet and food friendly. Some say that it works well and is aquarium and food safe.
"...Bonded quickly. And able to use bowl as glue is non-toxic." Read more
"This could not be easier. It says FOOD SAFE on the front of the package. I had an acrylic serving dish that needed a fix...." Read more
"...This was easy to work with. I appreciate that they certify it to be food safe." Read more
"I was sold on this sealant being listed as safe for contact with food...." Read more
Customers find the bonding adhesives easy to use. They say it's very easy to apply, needs little time to set, and is easy to reposition pieces to get the right fit.
"...Tacky enough to hold pieces together while curing. Easy to reposition pieces to get the right fit." Read more
"Easy to use, no mess. Bonded quickly. And able to use bowl as glue is non-toxic." Read more
"It was very easy to work with this product...." Read more
"Used this to fix a broken plate. Process was not very hard to figure out, and the plate has been fine ever since...." Read more
Customers have mixed opinions about the seal. Some say that it works well and stops leaks, while others say that when it cured it exploded all over the place.
"...No water is leaking through the repair- and the vessel's primary purpose is to dispense beverages...." Read more
"...and it held together this whole time filled with water with no leaks!..." Read more
"...Unfortunately, it started leaking...." Read more
"...So far it’s held up.. it’s not pretty but it sealed the leak...." Read more
Customers are mixed about the clarity of the bonding adhesive. Some mention it's clear, odorless, and watertight with strong adhesion. They say it dries quickly, while others say it takes a couple weeks to dry.
"...I liked that the drying time was slightly delayed, as repairing a broken dish requires patience and precision...." Read more
"...Update....This stuff dries really really really quickly...." Read more
"...This is my go-to solution. It is clear and far stronger than expected...." Read more
"...I only gave it four instead of five stars because it seems to dry up and clog the tube opening after every use. It's very difficult to dig out." Read more
Customers are dissatisfied with the durability of the bonding adhesive. They mention that the tube broke on the first use, the bottle broke, and it fell apart in no time. Customers also report that the nozzle breaks off pretty quickly.
"...My only real gripe is the container, which easily bursts. Be gentle in pushing it out...." Read more
"...It definitely worked, but I knocked a star off because the bottom seam of the tube opened and the sealant exploded all over the place...." Read more
"...Being forewarned, I've managed to avoid that but could not avoid the cap splitting on the second or third use...." Read more
"...way to recap this, unless you're using it all in one go, this tube becomes useless.3. The fumes!..." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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Just snip the tip, it comes out a bit thick, like a thick silicone gel, and hold it into place for 5 minutes. Then, it needs to harden for 24 hours. I followed the directions and I'm very pleased with the results. I would use it again. It was more than enough for my project.
I liked that the drying time was slightly delayed, as repairing a broken dish requires patience and precision.
It was very important to me to use a product that is verifiable and absolutely food safe per ANSI/NSF and/or FDA standards.
*There are many products out there that claim to be food safe, but you have to actually look for that information to be stated on the product or the product’s manufacturing site. Also, if a chemical product is not made in the United States, don’t buy it, as this information is almost always impossible to find and intentionally omitted. I visited dap.com and verified the safety information on the MSDS (material safety data sheet) as well.
I made sure that I had plenty of ventilation, but honestly, there wasn’t much of an odor.
Make sure that the opening that you create at the tip is large enough! A safety pin is not wide enough for the viscosity of this product, fyi.