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Interior/Exterior Primer, Sealer, and Stain Blocker, Multi-Surface, White, All Purpose, 1 qt.

Original price $12.98 - Original price $12.98
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About This Product Revised Version: New Appearance, Same Reliable Formula, 1 Qt. is a quick-drying, water-based primer, sealer, and stain blocker s...

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Interior/Exterior Primer, Sealer, and Stain Blocker, Multi-Surface, White, All Purpose, 1 Gal.

Original price $23.98 - Original price $23.98
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$23.98
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Current price $23.98
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About This Product New Appearance, Same Reliable Formula, is a quick-drying, water-based, multi-surface primer, sealer, and stain blocker with supe...

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Interior/Exterior Primer, Sealer, and Stain Blocker, Multi-Surface, Gray, All Purpose, 1 gal.

Original price $24.98 - Original price $24.98
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About This Product New Appearance, Same Reliable Formula, 1 Gal. Gray Primer is a quick-drying, water-based, multi-surface primer-sealer-stain bloc...

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Interior/Exterior Primer and Sealer, Acrylic Multi-Surface Stain-Blocking, White, 5 Gal.

Original price $138.00 - Original price $138.00
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$138.00
$138.00 - $138.00
Current price $138.00
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About This Product Multi-Surface Stain-Blocking Primer and Sealer is a water-based primer suitable for both interior and exterior use, compatible w...

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Interior/Exterior Primer and Sealer, Gripper White, 5 gal.

Original price $147.00 - Original price $147.00
Original price
$147.00
$147.00 - $147.00
Current price $147.00
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About This Product Gripper Interior/Exterior Primer and Sealer is a top-quality acrylic primer and sealer crafted to tackle the diverse challenges ...

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Primer Spray, Flat Gray, 15 oz.

Original price $9.98 - Original price $9.98
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$9.98
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About This Product Rust-Oleum Professional High Performance Enamel Sprays provide superior coverage, hiding and corrosion protection. They can be ...

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Interior and Exterior Primer, Sealer and Stain-Blocker, Mold & Mildew Oil-Based, White, 13 oz.

Original price $12.98 - Original price $12.98
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About This Product MOLD and MILDEW Aerosol Primer is suitable for spot priming on residential surfaces that are prone to high humidity and moisture...

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Primer Spray, Self Etching, Dark Green, 12 oz.

Original price $9.98 - Original price $9.98
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Current price $9.98
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About This Product Self Etching Primer ensures optimal adhesion and smoothness for the top coat on bare metal, aluminum, and fiberglass surfaces. I...

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Interior/Exterior Primer and Sealer, Multi-Surface, White, 1 qt.

Original price $15.98 - Original price $15.98
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$15.98
$15.98 - $15.98
Current price $15.98
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About This Product Multi-Surface Stain-Blocking Primer and Sealer is a water-based primer suitable for both interior and exterior applications, com...

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Interior Primer and Sealer, Acrylic Kitchen, Bath & Trim Stain-Blocking, White, 1 qt.

Original price $14.98 - Original price $14.98
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Current price $14.98
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About This Product All-In-One Stain-Blocking Primer and Sealer is made entirely of styrene acrylic. It offers a mildew-resistant finish and feature...

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Interior/Exterior Primer, Bonding, White, 1 Gal.

Original price $54.98 - Original price $54.98
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$54.98
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Current price $54.98
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About This Product Bonding Primer is a specially formulated modified-acrylic primer designed to stick to a variety of difficult surfaces. This prim...

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Interior/Exterior Primer and Sealer, Acrylic Multi-Surface Stain-Blocking, White, 1 Gal.

Original price $29.98 - Original price $29.98
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$29.98
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Current price $29.98
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About This Product Multi-Surface Stain-Blocking Primer and Sealer is a water-based primer suitable for both interior and exterior applications, com...

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Interior Primer and Sealer, Acrylic Kitchen, Bath, and Trim Stain-Blocking, White, 1 Gal.

Original price $29.98 - Original price $29.98
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Current price $29.98
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About This Product Kitchen, Bath & Trim Stain-Blocking Primer and Sealer is an indoor water-based primer that sticks to glossy surfaces. It eff...

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Interior/Exterior Primer, Acrylic Alkyd Enamel Undercoated, White, 1 Gal.

Original price $36.98 - Original price $36.98
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$36.98
$36.98 - $36.98
Current price $36.98
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About This Product Acrylic-Alkyd Enamel Undercoater is a water-based alkyd primer specifically engineered for excellent flow and leveling, aiding i...

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Interior/Exterior Primer, Mold Killing, 1 gal.

Original price $45.98 - Original price $45.98
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$45.98
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Current price $45.98
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About This Product Mold Killing Primer is a water-based, EPA-registered fungicidal protective coating designed to paint over and eliminate all exis...

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Interior/Exterior Primer and Sealer, Multi-Surface, Clear, 1 Gal.

Original price $23.26 - Original price $23.26
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$23.26
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About This Product New Appearance, Same Reliable Formula, 1 Gal. High Performance Primer and Sealer is a quick-drying, multi-surface clear primer d...

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Primers: What You Need to Know

Primers, also referred to as undercoats or preparatory coatings, are essential for promoting adhesion between surfaces and topcoats, preventing peeling, and improving finish quality. They’re available in a range of bases and formulations to match interior, exterior, and specialty surface requirements.

Base:

  • Acrylic: Water-based primers made with acrylic resins for excellent adhesion and durability. Fast-drying and suitable for drywall, wood, and masonry.
  • Latex: Flexible and easy to clean, latex primers are ideal for residential applications. Low-VOC content makes them environmentally friendly and user-safe.
  • Oil: Known for strong adhesion and superior stain blocking, oil-based primers are best for wood and surfaces with tough stains. Longer drying time is offset by long-term durability.
  • PVA: Polyvinyl acetate primers designed specifically for new drywall. They reduce surface absorption and promote consistent paint application.
  • Shellac: Offers exceptional stain-blocking for water, smoke, and tannin bleed. Suitable for sealing knots and spot-priming problem areas.
  • Water: Eco-friendly water-based primers that clean up easily and dry quickly. Compatible with most topcoats and ideal for indoor use.

Features:

  • Primer: Standard basecoat that enhances paint adhesion and creates a uniform finish. Suitable for most residential and commercial painting projects.
  • Primer & Sealer: Dual-action formula that seals porous surfaces and primes in one step. Reduces the need for multiple coats and improves final paint appearance.
  • Primer & Sealer Spray: Combines sealing and priming capabilities in an easy-to-use spray format. Perfect for touch-ups or hard-to-reach areas.
  • Spray Primer: Delivers smooth, even coverage in aerosol form for small jobs or tight spaces. Great for furniture, décor, or patch repairs.
  • Spray Primer & Sealer: A high-performance aerosol product that seals and primes simultaneously. Designed for convenience without compromising on quality.

Applications:

  • Concrete: Designed for porous surfaces, these primers penetrate and seal concrete to ensure strong paint adhesion and prevent chipping. They provide a smooth base layer ideal for masonry and cementitious substrates.
  • Drywall: Formulated to seal new drywall, these primers prevent blotchiness and enhance topcoat uniformity. They also reduce paint absorption for improved coverage and finish.
  • Interior: Tailored for indoor use, interior primers offer low odor and quick drying properties. Suitable for walls, ceilings, and other common indoor surfaces.
  • Metal: These primers protect against rust and corrosion while offering solid bonding for topcoats. Ideal for galvanized, bare, or previously painted metal surfaces.
  • Multi-purpose: Engineered for versatility, multi-purpose primers can be used across various surfaces including wood, drywall, and masonry. They’re a convenient choice for both repair work and new installations.
  • Rusty Metal: Specially designed for corroded surfaces, these primers neutralize rust and prepare metal for painting. They deliver added protection in high-moisture or industrial settings.

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 Primers now and get them delivered today!