What are the temperature specifications ? Can I use this close to a heating element submerged in water once it dried ?

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.

I have a tube of this. Can I use it to install a bathroom sink?

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.

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?

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.

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.

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.

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Description

🔧 Seal it, fix it, love it — the last adhesive you’ll ever need!

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.

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.

Specifications

Brand	DAP
Specific Uses For Product	Aquarium Sealing, Crafts, Household Projects, Kitchen Projects, Repairing Ceramics
Material	Silicone
Item Form	Paste
Special Feature	Waterproof
Colour	green & black
Item Package Quantity	1
Package Information	Tube
Item Volume	2.8 Fluid Ounces
Viscosity	Medium to High Viscosity
Full Cure Time	24 Hours
Water Resistance Level	Waterproof
Net Quantity	2.8 Fl Oz
UPC	070798007550 070798006881
Global Trade Identification Number	00070798006881
Manufacturer	DAP
Country of Origin	USA
Model number	7079800755
Number of Memory Sticks	1
Item Weight	72.6 g
Product Dimensions	9.53 x 3.81 x 21.59 cm; 72.57 g
Item model number	7079800755
Item Height	8.5 Inches
Item Width	1.5 Inches
Included Components	1 Tube
Are batteries included?	No

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