Meet the KILZ Original White Flat Oil-Based Alkyd Primer, a 1 gal interior workhorse designed to anchor your project with unmatched stain blocking and a flawless, uniform base. Built for professionals and DIYers alike, this primer lays down a solid foundation that topcoats can trust for years to come.
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Oil-based alkyd formula delivers exceptional adhesion and hide on all interior surfaces, including drywall, wood trim, doors, paneling, and cabinetry.
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Stain blocking capability seals in water stains, smoke residues, tannin bleed, and other discolorations to prevent bleed-through after you paint.
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Tintable options let you customize the base with compatible colorants for better color accuracy and faster topcoat color matching.
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Flat white finish creates a neutral, matte foundation that minimizes sheen shifts and ensures even coverage under your final color.
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Fast recoat and complete cure recoat in about 2 hours, with full cure in roughly 14 days, so you can keep your project moving without long downtime.
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Wide coverage up to 400 sq ft per gallon (depending on surface porosity and texture), making it an economical choice for large rooms and multiple surfaces.
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Indoor use designed for interior projects, backed by a limited lifetime warranty for peace of mind.
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Easy cleanup with mineral spirits, keeping cleanup simple when you’re finished.
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Versatile application suitable for brush, roller, or sprayer, so you can choose the method that fits your workflow.
Why this primer stands out
Unlike generic primers, KILZ Original White Flat Primer is purpose-built to tackle interior staining and adhesion challenges head-on. Its robust stain-blocking properties prevent bleed-through from knots, tannins, water marks, and smoke, while the alkyd base delivers a harder, more durable film that stands up to daily wear on walls, trim, and cabinetry. The ability to tint the primer means you can tailor the base to your chosen topcoat, reducing color variance and creating a more predictable final result.
Ideal uses
- Prime new drywall or patched surfaces before applying your topcoat for a uniform finish.
- Seal stained areas on walls, ceilings, or wood trim to prevent bleed-through from knots or moisture.
- Prepare interior surfaces like doors, baseboards, cabinets, and paneling for a fresh color transformation.
- Use in renovation projects where a reliable base is critical for achieving crisp lines and even color reproduction.
How to get the best results
- Prepare the surface: clean, dry, and free of dust. Sand glossy areas to ensure good topcoat adhesion.
- Stir thoroughly and apply with a brush, roller, or sprayer to achieve a smooth, even coat.
- Allow the primer to dry to the touch, typically about 2 hours before recoating. For heavy stains, a second coat may be warranted.
- Recoat with your chosen topcoat once the primer has cured to ensure color accuracy and durability.
- Cleanup with mineral spirits after you’re finished.
Specifications at a glance
- Base Type: Oil-Based
- Product Type: Oil Primer
- Stain Blocking: Yes
- Sub Brand: Original
- Tintable: Yes
- VOC Level: 350 g/L
- Brand Name: KILZ
- Container Size: 1 gal
- Coverage Area: Up to 400 sq ft
- Application Method: Brush/Roller/Sprayer
- Color Family: White
- Sheen: Flat
- Indoor or Outdoor: Indoor
- Mildew Resistant Finish: No
- Paint & Primer Together: No
- Durability/Warranty: Limited Lifetime Warranty
