Product Resources

Before starting your project, read and follow all product label instructions carefully to ensure safe handling and proper application.  Apply Flex Caulk in a well-ventilated area and avoid prolonged inhalation of vapors. Wear protective gloves and safety glasses to reduce contact with skin and eyes. If contact occurs, rinse thoroughly with water. Keep out...

Flex Caulk typically becomes dry to the touch within 2–3 hours. However, full cure generally takes 24–48 hours under normal conditions.  Dry time can vary based on application thickness, temperature, and humidity. Thicker layers require more time to cure completely, and cooler or more humid environments may extend drying time.  Allowing Flex Caulk to fully cure ensures maximum strength and long-term waterproof...

Flex Caulk is designed for long-lasting performance and can last for many years when properly applied. Once cured, this powerful caulk forms a durable, rubberized seal that resists cracking, shrinking, and separating, even with temperature changes and moisture exposure.  Flex Caulk’s waterproof and weather-resistant formula maintains a strong bond through moisture and temperature fluctuations.  Flexpert Tip: Proper surface preparation and application can help extend the life of your seal. ...

Flex Caulk provides a strong, flexible seal that helps block water, air, and moisture. It is waterproof and designed to resist cracking, shrinking, and separating over time.   Flex Caulk is mold and mildew-resistant, making it ideal for bathrooms, kitchens, windows, doors, and exterior joints. It adheres to wood, metal, glass, tile, concrete, masonry, and most plastics. Available in...

Flex Caulk Silicone delivers powerful waterproof sealing indoors and outdoors, but it is not suited for every surface.  It should not be used on:  Porous surfaces  Wet or damp surfaces  Areas that will be painted For these applications, use Flex Caulk Hybrid instead. It bonds to porous and non-porous materials, can be applied to...

Flex Caulk creates a strong, long-lasting seal, but it can be removed if necessary How To Remove Flex Caulk:  Uncured Flex Caulk: Wipe away with a clean, dry cloth. Do not use water. Denatured alcohol or mineral spirits may help speed up removal.  Cured Flex Caulk: Use a caulk removal tool or straight edge to scrape beneath the bead. If needed, carefully cut along the...

Flex Caulk is good for many DIY projects and repairs, such as sealing around bathtubs, sinks, backsplashes, countertops, baseboards, window frames, doors, and more. Its waterproof, mildew-resistant formula creates a strong, flexible seal that helps block water, air, and moisture. It adheres to wood, metal, glass, tile, concrete, masonry, and most plastics.  Once cured,...

Have you ever repaired something, only to have to fix it again weeks later? Not because you did it wrong, but because the adhesive couldn’t handle the job. Unfortunately, many traditional glues are designed for ideal lab conditions, not real-life repairs.  Flex Glue is built different. Its rubberized, waterproof formula creates a powerful, flexible...

Flex Shot is ideal when you need a strong, waterproof seal without the mess of a caulking gun. This thick, rubberized sealant fills gaps, stops leaks, and remains flexible, making it an excellent choice for use on tubs, showers, sinks, windows, doors, RVs, boat seams, and more. It won’t shrink or crack, and it...

While Flex Shot seals gaps and holes right away, full curing takes some time. The product typically forms a skin in about 20–30 minutes and cures within 24–48 hours, depending on temperature and humidity. For the strongest waterproof seal, apply it to a clean, dry surface and allow it to cure completely before heavy...