KILZ Premium: The Water-Based Primer That Acts Like Oil

KILZ Premium delivers oil-based performance in a water-based formula with ultra-low VOC content (< 5 g/L). At 54.7% solids by volume, it packs more resin than typical primers, which translates to better adhesion and stain blocking.

Coverage runs 300-400 square feet per gallon. The 30-minute dry time and 1-hour recoat window mean you can prime and paint in the same morning. With a 95% recommendation rate from 876 reviews, contractors have made their verdict clear.

Technical Specifications That Matter

KILZ Premium operates in a 50°F to 90°F temperature range. The formula applies at 4.0-5.3 mils wet and dries to 1.6-2.2 mils. For spray application, use a 0.017” to 0.021” tip with 60-mesh filter at 2,500-3,000 psi.

Specification	Value
VOC Content	< 5 g/L
Solids by Volume	54.7% ± 2%
Dry to Touch	30 minutes at 77°F
Recoat Time	1 hour
Coverage	300-400 sq ft/gallon
Viscosity	95-105 KU
Spray Tip	0.017”-0.021”

The high solids content isn’t just a number. More resin means better film build in a single coat. That 54.7% solids outperforms standard primers hovering around 40-45%. You’re buying more primer and less water.

Where Premium Outperforms Standard KILZ

KILZ Premium is thicker, whiter, and has a higher resin content than standard KILZ 2, providing better adhesion and more effective stain blocking. While KILZ Original handles severe damage better due to its oil base, Premium offers a low-VOC water-based alternative for medium-to-heavy stains without the fumes.

KILZ Restoration tackles fire and smoke damage that Premium won’t touch. But for standard heavy-duty priming tasks, Premium hits the sweet spot. It blocks water stains, tannin bleed, ink, pencil, and grease. The EPA-registered mildewcide makes it ideal for bathrooms, basements, and kitchens where moisture lurks.

Application and Performance

Don’t thin this primer for stain blocking - use it straight from the can. For spray application, you can add up to 1/2 pint of water per gallon if needed. Apply with a high-quality nylon/polyester brush or 3/8” to 3/4” nap roller.

Surface prep remains critical: clean surfaces, wash with TSP substitute, sand glossy areas. Hit any mold or mildew with proper remover before priming. New masonry needs 30 days cure time.

After the first coat dries, check for stain bleed-through and apply a second coat if needed. Some stubborn stains require that second pass. Better to catch it during priming than after your topcoat goes on.

The Bottom Line

KILZ Premium earns its place on Montana jobsites. The low-odor formula matters when you’re priming a bedroom in January with windows sealed tight. That mildewcide coating fights back against spring snowmelt moisture in basements. The 30-minute dry time keeps projects moving when the construction season runs short.

At 4.8 stars from 876 reviews, contractors vote with their wallets - and KILZ backs it with a lifetime limited warranty for the original residential purchaser. Labor costs aren’t covered, and the warranty doesn’t transfer. But for a primer that blocks heavy stains while maintaining ultra-low VOC, Premium delivers what professionals need.

Skip it if you’re covering light scuffs or fresh drywall. Standard primers cost less for basic jobs. But when you’re facing water stains, tannin bleed, or moisture-prone areas, Premium’s higher resin content and mildew resistance justify the price. The formula works as advertised, and that 30-minute dry time changes how fast you can complete a project.

Frequently Asked Questions

Can KILZ Premium be used on exterior surfaces? Yes, KILZ Premium works on both interior and exterior surfaces. It adheres to wood, drywall, plaster, masonry, brick, stucco, and properly prepared painted metal.

Does KILZ Premium require sanding before application? Sand glossy surfaces to improve adhesion, but the primer adheres to glossy surfaces when properly prepared. Clean, dry surfaces matter more than heavy sanding for most applications.

What’s the shelf life of KILZ Premium? Store in a cool, dry place and stir thoroughly before use if it’s been sitting. Like most water-based primers, it’s best used within two years of purchase for optimal performance.

Can KILZ Premium be tinted? Yes, you can add up to 2 ounces of universal colorant per gallon. Most contractors use it white for maximum hide and stain blocking.

How long before painting over KILZ Premium? One hour at 77°F and 50% humidity for both latex and oil-based paints. Cooler temperatures or high humidity extend drying time.