--- product_id: 222972386 title: "Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube" brand: "dap" price: "$27.91" currency: USD in_stock: true reviews_count: 5 category: "Dap" url: https://www.desertcart.us/products/222972386-dap-00688-all-purpose-adhesive-sealant-100-silicone-2-8 store_origin: US region: United States of America --- # fish-safe when cured 100% waterproof seal flexible, crack-resistant Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube **Brand:** dap **Price:** $27.91 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it, fix it, love it — the last adhesive you’ll ever need! ## Quick Answers - **What is this?** Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube by dap - **How much does it cost?** $27.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/222972386-dap-00688-all-purpose-adhesive-sealant-100-silicone-2-8) ## Best For - dap enthusiasts ## Why This Product - Trusted dap brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile & Safe:** Meets ASTM and FDA standards; safe for kitchen, crafts, and household use including dishwasher-safe seals. - • **Aquarium-Approved:** Non-toxic to freshwater and saltwater fish once fully cured—ideal for aquatic projects. - • **Compact & Precise:** 2.8-ounce tube designed for quick touch-ups and small-scale repairs with zero waste. - • **Seal with Confidence:** 100% silicone formula ensures a durable, waterproof bond that lasts. - • **Flexibility that Endures:** Stays flexible without cracking or shrinking, perfect for dynamic surfaces. ## Overview DAP 00688 All-Purpose Adhesive Sealant is a 2.8-ounce tube of 100% silicone rubber sealant that creates a flexible, waterproof, and crack-resistant bond. Safe for use in aquariums and food-contact areas, it meets ASTM C920 Class 25 and FDA regulations. Perfect for household repairs, crafts, and kitchen projects, this medium-high viscosity sealant cures fully in 24 hours, delivering long-lasting, versatile performance. ## Description DAP All Purpose Adhesive Silicone Sealant is a durable, 100% silicone rubber sealant designed for a wide range of quick household repairs and projects. Designed for speed and precision, the compact 2.8 ounce size is ideal for quick touch-ups or smaller projects and repairs. Safe for both freshwater and saltwater fish once fully cured and a great choice to restore or build small aquariums. This sealant creates a flexible, 100% waterproof seal that resists cracking and shrinking, ensuring long-lasting performance. Meets ASTM C920, Class 25 standards and the requirements of FDA Regulation No. 21 CFR 177.2600, making it safe for incidental contact with food. Sealant works on interior and exterior applications and is dishwasher and microwave safe. Additional uses include repairing dishwasher seals, mending campers and tents, repairing porcelain, china, crystal, ceramics, jewelry and making crafts. DAP caulk and sealants provide durable performance for a variety of projects. DAP On the Go products provide the ability to seal, repair, bond and more without the waste. Review: Worked Extremely Well! - I was looking for something to adhere small glass bowls (to hold candy) to plastic for some Halloween decorations. I had to make about 20 of them and I needed something that 1, wouldn't come undone if the plastic and/or glass became cool due only to normal conditions, and 2, didn't have the strong, horrible odor. This was the miracle adhesive! I am a DIYer and have been using another popular adhesive for a very long time. No longer. Don't get me wrong, the other product works great and frankly is cheaper. But the DAP 688 did everything I needed and had no lingering odor. It is advertised to repair aquarium glass so it must be safe for fish. Plus, if it could hold glass together in water, I figured it would hold glass to plastic! And it worked great!!! If you are looking for something you can use inside, try this. Great product. Review: Five Stars - Working ok, I still need to add a few layers ## Features - Waterproof - Stays flexible - Won't crack or shrink - Non-toxic to fresh and saltwater fish when cured ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000KE4PBQ | | Best Sellers Rank | #28,545 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #70 in Silicone Adhesives | | Brand | DAP | | Brand Name | DAP | | Colour | green & black | | Compatible Material | Rubber | | Container Type | Tube | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 953 Reviews | | Full Cure Time | 24 Hours | | Global Trade Identification Number | 00070798006881 | | Included Components | 1 Tube | | Item Form | Paste | | Item Package Quantity | 1 | | Item Type Name | Adhesive Sealant | | Item Weight | 73 g | | Manufacturer | DAP | | Manufacturer Part Number | 7079800755 | | Material | Silicone | | Material Type | Silicone | | Model | 7079800755 | | Number of Pieces | 1 | | Other Special Features of the Product | Waterproof | | Special Feature | Waterproof | | Specific Uses For Product | Aquarium Sealing, Crafts, Household Projects, Kitchen Projects, Repairing Ceramics | | UPC | 070798007550 070798006881 | | Unit Count | 2.8 Ounce | | Viscosity Level | Medium to High | | Volume | 2.8 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** DAP - **Specific Uses For Product:** Aquarium Sealing, Crafts, Household Projects, Kitchen Projects, Repairing Ceramics - **Material:** Silicone - **Item Form:** Paste - **Special Feature:** Waterproof ## Images ![Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Image 1](https://m.media-amazon.com/images/I/61UFo5DQdUL.jpg) ![Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Image 2](https://m.media-amazon.com/images/I/61lNTidDLTL.jpg) ![Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Image 3](https://m.media-amazon.com/images/I/71IFWur8ujL.jpg) ![Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Image 4](https://m.media-amazon.com/images/I/81CXvfqzlaL.jpg) ![Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Image 5](https://m.media-amazon.com/images/I/71nTEeskDpL.jpg) ## Questions & Answers **Q: What are the temperature specifications ? Can I use this close to a heating element submerged in water once it dried ?** A: I used it to seal the outside of the heating element on my dishwasher... the flange wouldn’t make a complete seal around the outside, so it leaked water. Still working great after several months. **Q: I have a tube of this. Can I use it to install a bathroom sink?** A: It is not like other silicone used in bathroom/shower installs. One specific difference is that those bathroom/shower silicones contain anti-microbial protection against mold & mildew. This is a food grade safe silicone, so those anti-microbial additives aren’t included in this formula. Also, it takes 72 hours to cure properly. **Q: I'm interested in using this to repair a Chemex coffee maker. Crack is near the top. My concerns are about the heat and about food safety. Thoughts?** A: Nothing other than a talented glass blower can fix a Chemex glass coffee filter cone. A crack in the borosilicate glass will grow under the stress of thermal expansion. In theory you can pre-heat the entire piece and repair the area and anneal and cool the piece, in practice it would cost much more to pay someone to do that than to buy a new Chemex. It’s an ,aesthetically pleasing way to make coffee, but you have to make peace with the idea that It requires exceptionally careful handling to achieve an average working life of 2 years In daily use. There are many other cone type coffee filter coffee makers that produce coffee quite well if you lose interest in the aesthetic experience. **Q: how do i clean out the plastic long applicator so i can reuse it? i don't want sealant to dry in there and clog it, rendering the applicator useless.** A: I have had no problem with the product drying in the nozzle. At most I had to pick put the very tip, the rest stays wet enough to flow again when pressure is applied to the tube. I used a strong toothpick or a shishkebob stick to get a dry plug out if that happened. But 9 out of 10 ten uses it did not clog. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked Extremely Well! *by D***S on 25 November 2023* I was looking for something to adhere small glass bowls (to hold candy) to plastic for some Halloween decorations. I had to make about 20 of them and I needed something that 1, wouldn't come undone if the plastic and/or glass became cool due only to normal conditions, and 2, didn't have the strong, horrible odor. This was the miracle adhesive! I am a DIYer and have been using another popular adhesive for a very long time. No longer. Don't get me wrong, the other product works great and frankly is cheaper. But the DAP 688 did everything I needed and had no lingering odor. It is advertised to repair aquarium glass so it must be safe for fish. Plus, if it could hold glass together in water, I figured it would hold glass to plastic! And it worked great!!! If you are looking for something you can use inside, try this. Great product. ### ⭐⭐⭐⭐⭐ Five Stars *by T***7 on 1 September 2015* Working ok, I still need to add a few layers ### ⭐⭐⭐⭐⭐ Very good product *by M***A on 24 June 2016* Because is safe I’ve solved my falling off shoes problem. I have number of shoes that jus hold to the heel very badly, and keep falling of all the time when walking. So 2 stripes of that silicone fixed the problem and I can use my beautiful shoes finally :) ## Frequently Bought Together - Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone, 2.8-Ounce Tube - Useekoo USB Aquarium Air Pump, Ultra Durable & Quiet USB Nano Air Pump, Small Air Bubbler for Aquarium Fish Tank with Air Stone and Silicone Tube - Sea-Monkeys® Instant Life - World's Only Instant Pets® - Ages 6+ (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/222972386-dap-00688-all-purpose-adhesive-sealant-100-silicone-2-8](https://www.desertcart.us/products/222972386-dap-00688-all-purpose-adhesive-sealant-100-silicone-2-8) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-11*