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Order early for pre-holiday delivery. Flinn (or Educational Innovations) will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025, will ship after we return. 

Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
;
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax
Email [email protected]
Aquarium Sealant is non-toxic to fish, plants, and invertebrates. Repair leaks, strengthen bonds, or construct your own tanks.

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Product Details

A clear, 100% silicone rubber sealant formulated specifically for freshwater and marine aquariums. Formulation is completely non-toxic to fish, plants and invertebrates. Use it to repair leaks, strengthen bonds, or to construct your own tanks. For bonding glass, metal or plastic. Supplied in a tube with an applicator nozzle that can be trimmed to desired bead size.