Interior | Exterior Primer








KILZ® ORIGINAL has been a trusted brand for over 40 years! This interior and exterior primer is specially formulated to be a sound undercoat for paint and will help enhance the topcoat’s performance. It has excellent adhesion to both interior and exterior surfaces including masonry, metal and excellent penetration for bare wood. KILZ® ORIGINAL INTERIOR/EXTERIOR is a fast drying sealer that blocks most severe stains including tannin bleed, graffiti, smoke, fire and water stains as well as sealing pet, smoke and food odors. Use on interior and exterior surfaces including wood, drywall, plaster, brick, masonry, stucco, interior siding and paneling, metal and properly prepared glossy surfaces†. Not recommended for floors.

Available in Gallons, Fives and Aerosol

Where To Buy

Please check availability before visiting your local retailer

  • Ratings & Reviews
  • Preparation, Application & Clean-Up
  • Warranty / Warnings
  • Product Specifications
KILZ® ORIGINAL Interior | Exterior Primer is rated 4.8 out of 5 by 139.
Rated 5 out of 5 by from Blocked a stubborn stain! I built a pedestal for our front loading washer/dryer. I included a 36"x24"x12" drawer and a pullout shelf (strengthened to double as a step for access to above shelves). Some of the plywood I used were leftover from prior projects, with oil or similar stains I didn't notice. Multiple coats of latex/primer had stain bleed-through. One coat of Kilz after a light sanding completely blocked the stain! Thanks Kilz!
Date published: 2020-01-28
Rated 5 out of 5 by from Kilz primer Works fine. Kilz is the best paint product sold anywhere.
Date published: 2020-01-15
Rated 5 out of 5 by from Great coverage on stains even oil stains I bought this to seal the stains on a sliding door that gets stains from oil and grease. I was really happy with the coverage, and that it even sealed cracking paint. A bit more in cost than some products, but overall worth it because it works better with one coat.
Date published: 2020-01-06
Rated 5 out of 5 by from Kilz 2 Gray Used it on my shed's roof and walls. Great result!
Date published: 2019-11-30
Rated 4 out of 5 by from Wonderful and Easy to remove stains I have painted for Bathroom with lot of stains and it worked really superb! Previously I have painted with a different brand and it did not work very well and but after painting with Kilz 2 Interior and Exterior primer it worked really very well all stains are gone after the first attempt it self. I saved lot of time, in Attaching pictures here before and after, I definitely recommend this product who have stains in the bathroom.
Date published: 2019-11-28
Rated 5 out of 5 by from Covers Great Kilz product covered old paint and stained walls great.
Date published: 2019-11-23
Rated 5 out of 5 by from Great Product Great Product. Full coverage on old paint. Dries quickly
Date published: 2019-11-03
Rated 5 out of 5 by from Nothing evers bleeds through I used this product last summer no problems nothing bled through
Date published: 2019-11-02
Rated 5 out of 5 by from Work the best About this two months ago and I’m so happy that it worked to cover up the red mess on the ceiling
Date published: 2019-11-02
Rated 5 out of 5 by from Great coverage and staying power Use it under all my paint projects.Inside and outside.On wood,stone,brick,and cement.
Date published: 2019-11-01
Rated 5 out of 5 by from Get ‘Er Done! 2-1 Does the job and does it well. Great 1 coat coverage. But also watered down for an amazing job of giving a whitewashed or pickled look!
Date published: 2019-11-01
Rated 5 out of 5 by from Great coverage I've been using this product for years and it has never failed to cover a multitude of grease, lipstick, magic marker, other paint you name it. This works!
Date published: 2019-11-01
Rated 5 out of 5 by from The Best ! I've used many of the different ones - nothing but the best on sealing and coverage
Date published: 2019-11-01
Rated 5 out of 5 by from great coverage Used several times to update outside signs, covers old paint colors and stains easily
Date published: 2019-10-31
Rated 4 out of 5 by from Did what it said it would do! I have used Kilz primer on so many of my painting projects over the years. It covers and conceals as stains like they were never there. I would like to try some of the other products like the 1 part concrete seal.. Will be doing the Finnishing on my garage this spring.
Date published: 2019-10-31
Rated 5 out of 5 by from Worked great I used this in my house and it worked great! It was recommended by a contractor and I could t believe the results.
Date published: 2019-10-31
Rated 4 out of 5 by from Definitely helped against odor I bought this product a month ago. I painted the ceiling with it in one of the rooms and it caused some bubbling when I applied the regular paint on top. I was kind of concerned and had to redo the room but the other rooms turned out fine. It definitely helped in blocking the cigarette odor from the previous owner. I would definitely buy it again.
Date published: 2019-10-31
Rated 5 out of 5 by from Love this product I paint for a lot of people and I suggest they kiltz their walls before painting. It makes the paint better in every way. I don’t use any other primer. I also like the premixed color kiltz.
Date published: 2019-10-31
Rated 5 out of 5 by from Wonderful product! My Husband and I used this when we tore down the fireplace and chimney in our kitchen. We could not take down the entire chimney and there was a creosote smell. I took the KILZ paint that I bought for another project and it completely killed the smell of a chimney built in 1884.
Date published: 2019-10-31
Rated 5 out of 5 by from great concealer Easy to use and easy to clean up! I don't have any photos to post as this is the preliminary of my project.
Date published: 2019-10-30
Rated 5 out of 5 by from Covers the stains! I always buy Kilz primer when I paint something. Kilz primer is what I begin with as a base. It covers great...stains, mildew, anything. It looks great when I am done, also!
Date published: 2019-10-30
Rated 5 out of 5 by from Couldn't ask for any better product. Used Kilts primer to reprime my whole house after a fire. Best product EVER! Saved me lots of time with so little effort.
Date published: 2019-10-30
Rated 5 out of 5 by from the ONLY product that works like it says it does We bought this when my husbands mother passed away and had to clean and repair her WHOLE house in which she has three cats, need I say more! The urine, urine and more urine stains and smell were so bad we had to use professional air masks just to gut the place of all the stuff and then carpet! Then the magic began ...KILZ ...and did it ever !!! We did the walls, ceiling v s and floors and all the mold, stains and SMELLS gone !!!! Now this is a product that lives up to its name !!
Date published: 2019-10-30
Rated 5 out of 5 by from Excellent primer to kill mold and mildew Bought this when remodeling my dining room. Killz mold and mildew with no odor! I have already recommended it to a few people.
Date published: 2019-10-30
Rated 5 out of 5 by from Good product Couldn’t do the job without it, good adhesive, good blocker , easy to apply.
Date published: 2019-10-29
Rated 5 out of 5 by from One coat woks We use KILZ for it's dependable converge. I first used this year's ago, we had a mold problem in a apartment we were renting and it covered and sealed the mold completely. Since then I was sold my husband is a General Contractor KILZ is all he has used.
Date published: 2019-10-29
Rated 5 out of 5 by from Use it all over my house. Love the product. Just what I needed for my project.
Date published: 2019-10-29
Rated 5 out of 5 by from Wonderful coverage I am remodeling my back interior porch and I plan on using this fine product as I already know it is the best!
Date published: 2019-10-29
Rated 5 out of 5 by from Red no more! I decided I was done with my red bathroom. I had been waiting for my husband to help me repaint. I got tired of waiting and started priming it while he was gone for the weekend. One coat and the red was almost completely covered. Made repainting way easier than I expected.
Date published: 2019-10-29
Rated 5 out of 5 by from Great primer I have been using Kilz primer for a long time and has always worked wonderfully for me.
Date published: 2019-10-29
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Surface Preparation

The following steps are recommended for product performance.

  • All surfaces must be clean, free of dust, chalk, oil, mold and mildew, loose peeling paint, rust and all other foreign substances.
  • If washing is necessary, use a non-soapy detergent or a TSP substitute, rinse well and allow to dry.
  • †Glossy Surfaces: For maximum adhesion, scuff sand the surface thoroughly before priming.
  • Peeling or Checked Paint: Scrape off loose paint and sand to a smooth surface.
  • Mold or Mildew Covered Surfaces: Wash the area with a mildew remover, rinse with water and allow to dry before priming.
  • Masonry, Brick, Stucco and Plaster: KILZ ORIGINAL INTERIOR/EXTERIOR Primer may be used on clean, dry, aged masonry surfaces that have cured (dried) at least 90 days. If masonry has cured less than 90 days, use KILZ PREMIUM or KILZ 2® Primers.
  • Fire Restoration: It is critical to clean smoke damaged surfaces thoroughly before priming.


  • Eye protection is recommended. Do not thin. Stir thoroughly before and occasionally during use.
  • Apply using a brush, roller or sprayer.
  • Use product when painting surface and air temperatures are between 35°F (2°C) and 90°F (32°C).
  • Brush – High quality Nylon/Polyester
  • Roller – High quality 3/8-1/2” nap on smooth surfaces or 1/2-3/4” nap on semi-rough or porous surfaces.
  • Airless spray – .015-.021 tip / 60 mesh filter
  • Prime entire surface to ensure a uniform appearance of the topcoat.
  • Stainblocking: After priming, test for stain bleed-through by applying the topcoat to a small section. If the stain bleeds through the topcoat, apply a second coat of primer and test again before topcoating the entire area. If bleeding continues, a longer dry time is needed before topcoating.
  • Tinting: Up to 2 ounces of universal colorant per gallon. Tinting to a lighter shade than topcoat is recommended.
  • Coverage: 300-400 sq. ft. (28-37 m2) per gallon depending on application method and surface porosity.

Dry Time @ 77°F (25°C) / 50% RH

  • Touch in 30 minutes.
  • Paint in 1 hour.

Clean-Up & Disposal

  • Clean equipment and paint spatters with mineral spirits or acetone. Immediately after use, dispose of soiled rags and waste in a closed, water-filled container.
  • Do not dispose of this product down a drain. Please consider donating any unused product.
  • If spilled, contain material and remove with an inert absorbent. Dispose of contaminated absorbent, container and unused product in accordance with all current federal, state and local regulations. For recycling or disposal information contact your local household refuse collection service.


Masterchem Industries LLC warrants to you, the original residential consumer purchaser, the performance of this product as described on this label for so long as you reside in your home. If this product is found to be defective upon inspection by its representative, Masterchem Industries LLC will, at its option and upon presentation of proof-of-purchase (the original receipt), either furnish an equivalent amount of new product or refund the original purchase price of this product to you. This warranty is not transferable. This warranty excludes (1) labor and costs of labor for the application or removal of any product, and (2) any incidental or consequential damages, whether based on breach of express or implied warranty, negligence, strict liability or any other legal theory. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. To the extent permitted by applicable law, any implied warranties including the implied warranties of merchantability and of fitness for a particular purpose, are limited to the duration of this express warranty. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights and you may also have other rights, which vary from state to state. Note to residents of the State of New Jersey: The provisions of this warranty, including its limitations, are intended to apply to the fullest extent permitted by the laws of the State of New Jersey. For warranty service, call: 1-866-774-6371, or email: Masterchem Industries LLC reserves the right to inspect any and all application of the product prior to processing your claim made under this warranty.


This product contains chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.


If you scrape, sand, or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or log on to 

VENTILATION REQUIRED: To avoid inhalation and combustion hazards (see below), DO NOT use this product unless you can achieve cross-ventilation by opening windows and doors during application and drying.

CONTAINS PETROLEUM DISTILLATES. VAPOR HARMFUL. May affect the brain or nervous system causing dizziness, headache or nausea. Do not breathe vapors or spray mist. If you experience eye watering, headaches or dizziness, increase fresh air, wear respiratory protection (NIOSH/MSHA TC 23C or equivalent) or leave the area. Follow respirator manufacturer’s directions for respirator use. Causes eye, skin, nose and throat irritation. Avoid contact with eyes, skin and clothing. Wash thoroughly after handling and before smoking and eating.

NOTICE: Reports have associated repeated and prolonged occupational overexposure to solvents with permanent brain and nervous system damage. Intentional misuse by deliberately concentrating and inhaling the contents may be harmful or fatal.

VAPORS MAY CAUSE FLASH FIRE. Keep away from sparks, heat and open flame. Do not smoke. Vapors are heavier than air, and can travel at floor level to distant ignition sources. Extinguish all flames and pilot lights and turn off stoves, heaters, electric motors, high intensity lights and other sources of ignition during use and until all vapors are gone. Close container after each use. To avoid spontaneous combustion, after use immediately dispose of soiled rags and waste in a closed, water-filled container.


If swallowed, do not induce vomiting. Call a physician immediately. If you have difficulty breathing, leave area to obtain fresh air. If difficulty continues, get medical attention immediately. In case of eye contact, flush immediately with plenty of water for at least 15 minutes and get medical attention. For skin contact, wash thoroughly with soap and water.

KEEP FROM FREEZING. If frozen, let thaw at room temperature.



  • Base


  • Int/Ext


  • Color


  • Coverage - Low

    300 sq. ft.

  • Mils Wet - Low VOC | Regular VOC


  • Mils Dry - Low VOC | Regular VOC

    3.0 | 2.3

  • Coverage High

    400 sq. ft.

  • Mils Wet - Low VOC | Regular VOC


  • Mils Dry - Low VOC | Regular VOC

    2.3 | 1.7

  • Finish @ 85°

    < 10

  • Min Application Temp

    35°F (2°C)

  • Max Application Temp

    90°F (32°C)

  • Viscosity

    80 - 90 KU

  • Dry To Touch - Low VOC | Regular VOC

    60-90 min | 30 min

  • Dry To Recoat - Low VOC | Regular VOC

    2 hour | 2-3 hours

  • Max Tint

    2 oz

  • Low VOC

    350 g/l

  • Regular VOC

    450 g/l

  • Brush

    Nylon / Polyester Blend

  • Roller - Smooth Surface

    3/8"-1/2" nap

  • Roller - Porous Surface

    1/2"-3/4" nap

  • Spray Tip

    .015 - .021 tip

  • Spray Filter

    60 mesh

  • Spray Pressure

    2500 - 3000

  • Volume Solids

    56.5% (+/- 2%) for Low VOC version / 43.3% (+/-2%) for Regular VOC version

  • Weight Solids

    75% (+/-2%) for Low VOC version / 64.5% (+/- 2%) for Regular VOC version

  • Flashpoint

    74°F (23.3°C) for Low VOC version / 71°F (21.7°C) for Regular VOC version