Loctite® Clear Silicone Waterproof Sealant. Aquarium safe. Sinks, tubs, aquariums, plumbing, fixtures, windows & siding. Transparent. 2.7 fl oz (80ml). Silicone is the most universal means of sealing common household joints and cracks that are subject to direct water contact. Loctite's indoor/outdoor formula withstands temperature extremes and adheres to a wide variety of materials. Cured formulation is aquarium safe. Chemically curing sealant-voc 3%. 1-800-624-7767 9:00am - 4:00pm EST Monday-Friday. www.loctiteproducts.com. ©Henkel Corporation 2012/45075. All rights reserved/conforms to ASTM D4236.