Lighthouse Products* Caulks and Sealants

Making Light Work of the Toughest Jobs

Seal joints and seams quickly, easily and to an excellent finish with professional-grade Lighthouse Products caulks and sealants.

For decades, the Lighthouse brand has been the go-to standard for dependable, high-quality and easy-to-use products – providing caulks, sealants, and patch and spackling compounds for a wide range of exterior and interior applications.

Across America, Lighthouse Products caulks and sealants are there to provide affordable, top-quality performance.

Browse our complete line of Lighthouse Products caulks and sealants.

Caulks and Sealants

Fill gaps and create a tight, clean seal on a full range of interior and exterior projects with high-performance, high-value Lighthouse Products caulks and sealants. Our premium-quality products offer easy application, excellent adhesion and durability, and a smooth, even finish for outstanding results.

Patch and Spackling

Fill holes, cracks, dents and gouges with high-performance spackling and elastomeric patching compounds for a wide range of interior and exterior applications, including use on metal, wood, plaster, drywall, masonry and stucco. From fixing tiny cracks and imperfections to making heavy-duty repairs, our advanced, water-based compounds can deliver an excellent, paintable finish.

Kover Krack Elastomeric Patch

For exterior patching of a wide array of substrates, Kover Krack elastomeric patch offers premium protection in a water-based compound. Its extremely elastic formulation offers tenacious adhesion and outstanding elongation, even in cold temperatures, to both small and large cracks.

Application Guide

Download the Kover Krack Elastomeric Patch Application Guide for complete instructions on how to fill cracks on vertical surfaces. This guide details surface preparation and application tips for patching “random distribution” and “mass distribution” hairline cracks, non-structural movement cracks and surface cracks.

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