100% Waterproof • Interior Stone • Granite & Marble • Professional Grade

BioSeal Interior Stone Silicone Sealant is a professional-grade 100% waterproof silicone caulk and sealant designed for interior stone, granite, marble, countertops, stone walls, fixtures, plumbing connections, kitchens, bathrooms, and general interior sealing.

Its durable formula provides flexibility, strong adhesion, low odor, shrink and crack resistance, and long-lasting waterproof protection.

Ideal for natural stone, granite, marble, countertops, stone-to-surface joints, backsplash areas, sinks, vanities, fixtures, trim, and other interior applications.

Key Features

• 100% Waterproof Protection
• 50-Year Product Protection
• Stone-Friendly Finish
• No Significant Color Change
• 0% Acetic Acid
• Low-Odor Formula
• Strong Multi-Surface Adhesion
• Non-Sag & Non-Slump
• Shrink & Crack Resistant
• 4-Inch Precision Application Tip
• Water Ready in Approximately 30 Minutes
• Professional Interior Stone Performance

Available Colors

CLEAR • WHITE • TRANSLUCENT

Choose the finish that best complements your installation. Clear provides a discreet appearance, White works well with light fixtures and surfaces, and Translucent blends naturally with stone, marble, granite, countertops, and mixed-material installations.

Interior Stone Applications

Natural Stone • Granite • Marble • Stone Countertops • Stone Walls • Countertop Joints • Backsplashes • Stone-to-Surface Joints • Kitchen Stone • Bathroom Stone • Stone Fixtures

Kitchen & Bathroom Applications

Suitable for sinks, countertops, vanities, backsplashes, plumbing fixtures, bathroom accessories, stone surrounds, kitchen installations, and interior remodeling projects.

Multi-Surface Compatibility

GRANITE • MARBLE • NATURAL STONE • COUNTERTOPS • FIXTURES • TRIM • MIXED-MATERIAL JOINTS

Designed to provide dependable adhesion where stone meets surrounding interior materials while maintaining a clean, professional appearance.

Available Pack Sizes

1 PACK • 2 PACK • 6 PACK • 12 PACK • 18 PACK • 25 PACK • 50 PACK • 100 PACK

Available for homeowners, stone installers, countertop fabricators, contractors, remodelers, builders, property managers, maintenance teams, and commercial buyers.

How to Use

Clean and dry the application surface thoroughly. Remove dirt, dust, grease, oil, old sealant, and loose material. Cut the nozzle to the desired bead size, load the cartridge into a standard caulking gun, and apply a continuous bead with steady pressure. Tool immediately for a smooth professional finish.

Water ready in approximately 30 minutes. Allow approximately 24 hours for full curing. Cure time may vary depending on temperature, humidity, bead size, substrate, and application conditions.

Need larger quantities? Bulk, contractor, wholesale, stone-installation, remodeling, and commercial volume orders are available.