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White Lightning®

For inside or out, we have a caulk for the job. Shop now.

White Lightning caulk and sealants are designed for a variety of interior and exterior projects. From bolstering kitchens and bathrooms to protecting homes from heat, water and harsh weather, there’s a White Lightning product for every application.

Find the Best Caulk for Your Project

Caulk with confidence.

All Purpose

White Lightning all-purpose caulk and sealants are designed to provide a high level of flexibility and elasticity on a wide range of surfaces. They’re ideal for most general-purpose applications and are available in silicone and latex formulas for superior results. 

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Keep moisture where it belongs.

Kitchen and Bathroom

Most kitchens and bathrooms are challenging for caulk and sealants due to fluctuating temperatures, high humidity, surface water and more. White Lightning offers high-performance products, including silicone and siliconized-acrylic options. Our products also offer antimicrobial protection and a low-odor application. 

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Resist the elements indoors and out.

Windows and Doors

White Lightning has a full range of products for use on interior and exterior windows and doors, including silicone ultra and silicone rubber products. Our products are specially formulated to provide adhesion and flexibility to withstand both harsh weather and wear from frequent use.

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Fix and go.

Patch and Repair

For holes, cracks and gaps, White Lightning patch-and-repair products are the right choice for fixing imperfections before painting. They’re formulated for smooth and easy application, lasting durability and top performance to take the stress out of common repair projects.

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There’s a caulk for that.

Specialty Application

White Lightning specialty caulk and sealants provide superior performance for applications like concrete or mortar repair, roof repair, smoke and fire-blocking, and gutter lap installation. Each product is specifically formulated for a smooth, professional application and long-lasting durability to meet the needs of any job.

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White Lightning Pristine®

White Lightning Pristine is a premium acrylic sealant with a stay-clean formula that resists dirt, stains, mold and mildew when cured. Watch our video and learn what White Lightning Pristine can do for your next project.

White Lightning Optima™ Premium Hybrid Sealant

White Lightning Optima Premium Hybrid Sealant has superior adhesion and flexibility. Paintable in 30 minutes, it has excellent weather and ultraviolet (UV) resistance, and you can apply it in extreme temperatures. Check out our video to learn more about White Lightning Optima.

Why White Lightning?

Seal and Protect With White Lightning

White Lightning caulk and sealant products have been the choice of professionals and do-it-yourselfers for nearly a century. Whatever your project calls for, White Lightning offers a complete line of caulk and sealants to get the job done. Choose from all-purpose caulk options, such as White Lightning 3006, and products we designed specifically for windows, doors, kitchens, bathrooms and more.

Caulk vs. Sealant: What’s the Difference?
Though White Lightning caulk and sealants are similar in how you apply them — both require a caulk gun and caulk tools for application — they’re different products, mainly in elasticity. Caulk becomes rigid when dry and is for areas with little to no expansion or contraction. Sealants, however, contain flexible materials, such as silicone, which makes them ideal for areas prone to expansion and contraction, such as bathrooms.