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Caulk & Sealant

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SKU 592823

Caulk Gun Cordless 18V for 10 oz. (Tool Only)

Original price $128.90 - Original price $128.90
Original price
$128.90
$128.90 - $128.90
Current price $128.90
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About This Product unveils the Caulk Gun Cordless 18V for 10 oz. (Tool Only). Instead of manually operating a caulk gun for extended periods, reduc...

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SKU 428029

Caulk Gun ONE+ 18V Cordless for 10 oz. (Tool Only)

Original price $86.90 - Original price $86.90
Original price
$86.90
$86.90 - $86.90
Current price $86.90
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About This Product Enhance your 18V System with the Caulk Gun ONE+ 18V Cordless for 10 oz. (Tool Only). Dispense adhesives and sealants with up to ...

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SKU 222556

Silicone Sealant 28 oz. PL Self-Leveling Concrete Limestone

Original price $19.18 - Original price $19.18
Original price
$19.18
$19.18 - $19.18
Current price $19.18
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About This Product Self-Leveling Polyurethane Sealant is a professional-grade product designed for sealing contraction and expansion joints as well...

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SKU 330790

Silicone Sealant 10.1 oz. for Plastic Projects

Original price $17.92 - Original price $17.92
Original price
$17.92
$17.92 - $17.92
Current price $17.92
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About This Product Silicone Sealant 10.1 oz. for Plastic Projects contains a non-toxic, clear, 100% silicone formula that is perfect for sheets and...

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SKU 597511

Sealant 16 oz. High Heat Resistant Patch and Seale Paste Waterproof White

Original price $17.18 - Original price $17.18
Original price
$17.18
$17.18 - $17.18
Current price $17.18
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About This Product Gorilla Sealant 16 oz. High Heat Resistant Patch and Seale Paste Waterproof White is a dense, adaptable rubberized sealant paste...

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SKU 415003

Sealant 16 oz. Latex Flex Paste Interior/Exterior White

Original price $17.24 - Original price $17.24
Original price
$17.24
$17.24 - $17.24
Current price $17.24
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About This Product Sealant 16 oz. Latex Flex Paste Interior/Exterior White is an extremely thick rubberized paste that can be used to spread, mold,...

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SKU 789724

Caulk 10.1 oz. Waterproof Paste Supreme Window and Door White

Original price $14.95 - Original price $14.95
Original price
$14.95
$14.95 - $14.95
Current price $14.95
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About This Product Caulk 10.1 oz. Waterproof Paste Supreme Window and Door White is a completely waterproof caulk that can create a dependable seal...

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SKU 716995

Silicone Sealant 9 oz. QUAD Max Interior/Exterior Window Door and Siding Clear

Original price $14.79 - Original price $14.79
Original price
$14.79
$14.79 - $14.79
Current price $14.79
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About This Product Uncover mother nature's greatest challenge: Silicone Sealant 9 oz. QUAD Max Interior/Exterior Widnow Door and Siding Clear provi...

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SKU 668037

Silicone Sealant 9.5 oz. Supreme Painatble Kitchen and Bath White

Original price $15.85 - Original price $15.85
Original price
$15.85
$15.85 - $15.85
Current price $15.85
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About This Product Silicone Sealant 9.5 oz. Supreme Painatble Kitchen and Bath White is a top-tier, 100% silicone caulk that is completely waterpro...

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SKU 204890

Silicone Caulk Gun Dripless Smooth Rod for 29 oz. (Tool Only)

Original price $17.23 - Original price $17.23
Original price
$17.23
$17.23 - $17.23
Current price $17.23
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About This Product The Silicone Caulk Gun Dripless Smooth Rod for 29 oz. (Tool Only) offers enhanced control over caulk flow and produces smooth be...

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SKU 291723

Silicone Caulk 10.1 oz. Supreme Window and Door White

Original price $13.88 - Original price $13.88
Original price
$13.88
$13.88 - $13.88
Current price $13.88
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About This Product Silicone Caulk 10.1 oz. Supreme Window and Door White is a completely waterproof caulk that ensures a dependable seal in areas s...

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SKU 991857

Silicone Sealant 10.1 oz. Supreme Kitchen and Bath White

Original price $15.62 - Original price $15.62
Original price
$15.62
$15.62 - $15.62
Current price $15.62
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About This Product Silicone Sealant 10.1 oz. Supreme Kitchen and Bath White is a top-quality, 100% silicone caulk and completely waterproof sealant...

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SKU 086209

Sealant 10.1 oz. Latex Supreme Kitchen and Bath White

Original price $15.62 - Original price $15.62
Original price
$15.62
$15.62 - $15.62
Current price $15.62
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About This Product Supreme Silicone Kitchen and Bath sealant is a top-quality, 100% silicone caulk that is completely waterproof, making it perfect...

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SKU 573080

Silicone Sealant 10.1 oz. All-Purpose Waterproof Ultra White

Original price $14.79 - Original price $14.79
Original price
$14.79
$14.79 - $14.79
Current price $14.79
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About This Product Ultra Clear flexible sealant is a top-quality, highly elastic, ultra-transparent sealant designed for sealing and patching a div...

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SKU 732996

Sealant 9.5 oz. Sealant QUAD Max Interior/Exterior Window Door and Siding #001 White

Original price $12.14 - Original price $12.14
Original price
$12.14
$12.14 - $12.14
Current price $12.14
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About This Product Uncover nature's worst adversary: Sealant 9.5 oz. Sealant QUAD Max Interior/Exterior Widnow Door and Siding #001 White provides ...

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SKU 990603

Sealant 10.1 oz. Polyurethane Advanced Kitched and Bath White

Original price $13.32 - Original price $13.32
Original price
$13.32
$13.32 - $13.32
Current price $13.32
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About This Product Advanced Silicone 2 Kitchen and Bath sealant is a premium, 100% waterproof silicone caulk that is perfect for areas that are fre...

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SKU 571283

Silicone Sealant 5 oz. All-Purpose Waterproof Ultra White

Original price $11.62 - Original price $11.62
Original price
$11.62
$11.62 - $11.62
Current price $11.62
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About This Product Ultra Clear flexible sealant is a top-quality, highly elastic, ultra-transparent sealant designed for sealing and repairing a wi...

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SKU 884397

Caulk 10.1 oz. Sealant Advanced Kitchen and Bath Clear

Original price $13.32 - Original price $13.32
Original price
$13.32
$13.32 - $13.32
Current price $13.32
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About This Product Caulk 10.1 oz. Sealant Advanced Kitchen and Bath Clear is a top-notch, completely waterproof, and entirely silicone caulk perfec...

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SKU 767476

Caulk Gun Drip Free Ratchet for 10 oz. (Tool Only)

Original price $13.78 - Original price $13.78
Original price
$13.78
$13.78 - $13.78
Current price $13.78
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About This Product The Caulk Gun Drip Free Ratchet for 10 oz. (Tool Only) is a lightweight tool featuring a rotating barrel for easy application ar...

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SKU 186390

Sealant 10 oz. Polyurethane PL Concrete Crack and Masonry Limestone Grey

Original price $11.98 - Original price $11.98
Original price
$11.98
$11.98 - $11.98
Current price $11.98
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About This Product Sealant 10 oz. Polyurethane PL Concrete Crack and Masonry Limestone Grey is a top-tier, commercial-grade sealant specifically de...

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SKU 989483

Sealant 9 oz. Advanced AMP Modified Polymer Window Door and Siding Crystal Clear

Original price $11.98 - Original price $11.98
Original price
$11.98
$11.98 - $11.98
Current price $11.98
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About This Product Advanced Modified Polymer Waterproof Kitchen, Bath, and Plumbing Sealant delivers a completely waterproof seal and can be applie...

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SKU 435582

Sealant 9 oz. Advanced AMP Modified Polymer Window Door and Siding White

Original price $11.98 - Original price $11.98
Original price
$11.98
$11.98 - $11.98
Current price $11.98
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About This Product Advanced Modified Polymer Waterproof Kitchen, Bath, and Plumbing Sealant offers a completely waterproof seal and can be applied ...

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SKU 428604

Sealant 9 oz. Advanced All Weather AMP Modified Polymer Window Door and Siding White

Original price $11.98 - Original price $11.98
Original price
$11.98
$11.98 - $11.98
Current price $11.98
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About This Product Sealant 9 oz. Advanced All Weather AMP Modified Polymer Widnow Door and Siding White offers a completely weatherproof and waterp...

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SKU 597026

Sealant 10 oz. Polyurethane PL Self-Leveling Concrete Limestone

Original price $11.98 - Original price $11.98
Original price
$11.98
$11.98 - $11.98
Current price $11.98
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About This Product Sealant 10 oz. Polyurethane PL Self-Leveling Concrete Limestone is a high-quality sealant designed for contraction and expansion...

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Caulk & Sealant: What You Need to Know

Caulks and sealants, often referred to as joint fillers or gap sealers, are designed to prevent air, water, and moisture from entering joints or seams in buildings and structures. Available in various colors like white, gray, clear, and black—and packaging sizes from 1 oz. tubes to full 10 oz. and 28 oz. cartridges—this category supports a wide range of interior and exterior sealing needs.

Type:

  • Caulk: Flexible sealing compound used to fill gaps in windows, doors, baseboards, and trims. Commonly applied in both paintable and waterproof formulas for indoor and outdoor projects.
  • Caulk Guns: Manual or trigger-operated tools designed to apply caulk or adhesive cartridges with precision. Essential for professional-grade control and consistent bead application.
  • Gutter Sealant: Specialized for bonding and sealing joints in metal and vinyl gutter systems. Withstands extreme weather and prevents water leaks at seams and corners.
  • Sealants: Durable and elastic compounds used for sealing expansion joints, plumbing penetrations, and structural gaps. Offers weatherproof, waterproof, and crack-resistant performance in high-movement areas.

Material:

  • Acrylic: Paintable water-based formula ideal for low-movement joints like trim, baseboards, and interior gaps. Easy cleanup and quick drying make it suitable for indoor use.
  • Acrylic Latex: Enhanced acrylic formula that increases flexibility and adhesion. Offers better durability while still allowing for smooth paint coverage.
  • Advanced Modified Polymer: A high-performance hybrid designed for commercial-grade adhesion and flexibility. Bonds to wet surfaces and offers superior UV and moisture resistance.
  • High Heat Resistant: Formulated to withstand elevated temperatures, often used around fireplaces, stoves, and heating systems. Maintains integrity under extreme heat conditions.
  • Installation Foam: Expanding polyurethane foam that fills large voids and irregular cavities. Commonly used for sealing around windows, doors, and penetrations.
  • Latex: Standard interior-use material that offers easy tooling and paintability. Best for sealing drywall, baseboards, and decorative trim.
  • Polyurethane: Premium-grade material used for roofing, masonry, and concrete joints. Highly flexible and adheres strongly to a wide range of substrates.
  • Sealant: Generic category for specialty compounds that don’t fall under caulk but offer sealing properties. Used in niche or manufacturer-specific applications.
  • Silicone: 100% waterproof and highly flexible, ideal for kitchens, bathrooms, and exteriors. Bonds to non-porous surfaces like glass, tile, and metal.
  • Waterproof Paste: Dense, non-shrinking formulation used for filling or sealing areas with constant water exposure. Ideal for roof patching or leak repairs.

At Supply Ontime, we offer reliable materials designed to meet your project’s needs. With same-day delivery across the Greater Los Angeles area, we make it easy to keep your projects on schedule. Order Caulk & Sealant now and get them delivered today!

Caulk & Sealant FAQ

How quickly can caulk and sealant be delivered across Los Angeles?

Caulk and sealant can be delivered across Los Angeles the same day, often within four hours when in stock. Supply Ontime also offers scheduled two-hour delivery windows to match project timelines. Delivery options include Truck Bed Delivery, Curbside Delivery, and White Gloves Delivery, ensuring supplies arrive exactly where they’re needed without delays.

What types of caulk and sealant are available for delivery in Los Angeles?

The types of caulk and sealant available for delivery in Los Angeles include acrylic latex, silicone, polyurethane, epoxy, and specialized gutter sealants. Each has a specific application—such as interior drywall seams, exterior weatherproofing, sealing metal joints, or withstanding high heat and moisture. Products are sold individually for small projects or in bulk contractor packs for larger-scale jobs.

Should I use silicone caulk or polyurethane sealant for my Los Angeles project?

You should use silicone caulk when flexibility and waterproofing are needed, such as in bathrooms, kitchens, and other moisture-prone areas. Polyurethane sealant is a stronger option for heavy-duty applications like concrete joints, driveways, and structural work. In Los Angeles, homeowners typically rely on silicone for indoor projects, while contractors prefer polyurethane for outdoor and industrial jobs.