Interior | Exterior Primer






New Look, Same Trusted Formula! KILZ 2® GRAY Primer is a fast drying, water-based, multi-surface primer-sealer-stainblocker which is best used under dark, rich and deep vibrant color topcoats. This helps achieve more accurate color with fewer coats of paint and also improves hiding of previous colors. KILZ 2 GRAY Primer has excellent adhesion, sealing properties and a very mild odor. Effectively blocks “light to medium” stains including water stains, rust, grease, ink, pencil and felt marker. Use on interior and exterior surfaces including woodwork, drywall, plaster, paneling, masonry, brick, painted metal and properly prepared glossy surfaces. Use under or over water-based or oil-based paints. Not recommended on flooring.

Available in Gallons

Where To Buy

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  • Ratings & Reviews
  • Preparation, Application & Clean-Up
  • Warranty / Warnings
  • Product Specifications
KILZ 2® GRAY Interior | Exterior Primer is rated 4.9 out of 5 by 44.
Rated 5 out of 5 by from The gray primer by Kilz is the best! We purchased a home and been doing room by room. Our 1st room: the front room was painted apple red. Also the previous owners painted Red-Apple over a brick fireplace. We had no other choice but to repaint it. At the store: Kilz gray primer was highly recommend so we purchased 2 gallons. My wife had an out of town emergency so I wanted to suprise her. I only needed 1 coat of primer which I was very surprised but it covered beautiful. Then I painted with 2 coats of paint. I probably could have only used 1. It covered the bricks: which are now a off white: you could never tell just how red it was. Since then we have moved into the dining room. Now after stripping out the wall paper & repairing the walls: my wife purchased the same Kilz in gray. She said it's the best. Doubt will ever use anything else.
Date published: 2020-04-24
Rated 5 out of 5 by from Very good coverage We bought this to repaint an entire house and was very pleased and glad we did.
Date published: 2020-04-24
Rated 5 out of 5 by from IT DOES THE JOB AND DOES IT WELL!! I tried the Kilz 2 gray for the first time about a year ago and I can tell you that it has been a game changer for me.I revamp furniture on the regular so I have tried several different brands and this one is the best.It gives full coverage,it sticks to the surface and it locks that old odor that some old furniture have.Stains blockage is very good as well but not perfect ,it took 2 coats to keep the cherry oak stain from seeping through. I had to give it full stars cause it did what I wanted and most importantly it did what it said it would.
Date published: 2020-04-23
Rated 5 out of 5 by from Super coverage I have tried many different primers but this one is the best!
Date published: 2020-04-23
Rated 5 out of 5 by from This is the best primer! It is the best primer when doing dark colors indoors or out
Date published: 2020-04-22
Rated 5 out of 5 by from Complete coverage We are remodeling a rental that is 80 years old and been treated very badly there had been mold stains prior owners had cats and dogs that were not house trained and we bought your product when we finished the first coat it was amazing no more stink or stains i will only ever use your products for my future endeavors and i have told everyone i know how wonderful your products are
Date published: 2020-04-22
Rated 5 out of 5 by from Complete coverage Our bathroom was a very deep eggplant color. Kilz 2 primer completely covered it!!!!
Date published: 2020-04-21
Rated 5 out of 5 by from Saves me money! I use this product when I paint my furniture that I sell. Has great coverage and saves me only on paint because it does. I have honestly painted piece entirely with the gray primer. Loved it!!
Date published: 2020-04-20
Rated 5 out of 5 by from More than did the job! The home I purchased had an accent walk in EVERY room... to include a fire engine red wall in the main living room! I used Kilz grey primer thinking this is never going to work. Not only did it cover perfectly but there has not been any bleed through on my now grey wall. Kilz is Magic!!
Date published: 2020-04-19
Rated 5 out of 5 by from Amazing coverage Any of kilz products are awesome!! I painted over paneling in a old house and it hide all the old stains and filled the groves. One coat is the best part!!!
Date published: 2020-04-19
Rated 5 out of 5 by from Great product I bought this about two months ago to prime new water resistance drywall. It seal the wall and the paint went on smoothly.
Date published: 2020-04-18
Rated 5 out of 5 by from Excellent Primer! I use this in my basement to help cover mold and stains before repainting. It works great, and added a nice tone to the color I choose.
Date published: 2020-03-08
Rated 5 out of 5 by from Love the Grey Tone I bought Kilz 2 Gray Interior/Exterior to prime an outdoor fence that was going to be painted white. Used the Kilz 2, and when we had to paint the final finish of white on the fence, the gray tone made it so easy to see where we needed to paint. Also this covered all the knotholes and imperfections in the wood fence.
Date published: 2020-02-15
Rated 5 out of 5 by from Excellent product We used this to prime our shutters we were repainting. Went on smoothly and easily with great coverage.
Date published: 2020-02-04
Rated 4 out of 5 by from Great We live in an older house. And the walls were soaking up paint, so we went to ask a professional and they suggested this. It was great.
Date published: 2019-11-01
Rated 4 out of 5 by from gray good for darker color Kilz makes every paint stick better. Using a green paint on my 100 yr old garage and Kilz seals it up so the top coat just looks great
Date published: 2019-10-30
Rated 5 out of 5 by from Perfect Does what I needed it to do. Pulled down interior covering of garage walls. Paperboard, for goodness sake. Put up MR and mudded. Sealed with this primer to protect. It does.
Date published: 2019-10-30
Rated 4 out of 5 by from goes on easily I am happy with coverage, goes on easily, good product for the money
Date published: 2019-10-24
Rated 5 out of 5 by from Great cover. Quick Dry time. I used the product to prime (back & front) wood clapboards prior to installation. It has great ability to cover with good adhesion and a fast dry time.
Date published: 2019-10-24
Rated 5 out of 5 by from Great coverage! I bought this to paint our bedroom about 6 months ago and I'm so happy I did! It cleans well and covers great!
Date published: 2019-10-23
Rated 5 out of 5 by from like it should used to prime some pine shelving, one coat worked great!!
Date published: 2019-10-23
Rated 5 out of 5 by from Wow! We had an old Rusty trailer to paint. I was not very optimistic about the outcome. After some pretty diligent prep work we put a coat of Kilz 2 Grey primer on the house. The house was in such bad shape that I decided to put a second coat of primer on it and let me tell you, the paint went on beautifully! I have always been a fan of the Kilz primers but this time, they knocked my socks off!
Date published: 2019-08-30
Rated 5 out of 5 by from The Perfect Gray We are kind of obessed with Kilz Gray primer. Its the perfect gray. we have used as our wall color for the majority of the house, with no topper.
Date published: 2019-07-11
Rated 5 out of 5 by from High hiding! I was going to repaint a red room to a ivory color. I bought this primer hoping for the best. It didn’t disappoint me. I was totally surprised and impressed.! One coat and no red showing through my new color!
Date published: 2019-07-08
Rated 5 out of 5 by from Great love it- works better than others!!!!!everyone should use!!
Date published: 2019-06-19
Rated 5 out of 5 by from Excellent results! I bought this a couple of months ago for my outside deck. It did the job and I could not have been more pleased with a product.
Date published: 2019-06-08
Rated 5 out of 5 by from Great Product! Needed a gray primer because I was going to paint over old wall paint with a red color paint. This covered very well. Would definitely recommend.
Date published: 2019-06-06
Rated 5 out of 5 by from Floor cover I bought this to help spruce up and eliminate smells/mildew from my basement. It covered up all the blemishes and stains on one coat and eliminated any smells, plus looked great! Would recommend to anyone!
Date published: 2019-06-03
Rated 4 out of 5 by from Smells great! My friends came over and immediately noticed the smell. It was an aroma they had never smelled before. They love the floor and want to come over more now.
Date published: 2019-06-01
Rated 5 out of 5 by from nothing better we had exposed cedar siding on front of house. needed pressure wash black mold off every year just so looked better. this spring i just painted over the bare wood. did not wash. then put behr cheap red barn paint on. no bleed, looks fantastic.
Date published: 2019-05-27
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Surface Preparation

The following steps are recommended for product performance.

  • All surfaces must be clean, free of dust, chalk, oil, grease, wax, polish, 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.
  • Unpainted, exterior wood exposed to sun and/or moisture longer than 2-4 weeks must be cleaned and sanded before priming.
  • 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 2 GRAY Primer may be used on clean, dry, aged masonry surfaces. New masonry must be allowed to cure (dry) at least 30 days before applying KILZ 2 GRAY Primer.
  • Fire Restoration: It is critical to clean damaged surfaces thoroughly before priming. Primer recommendations: Water-based primers such as KILZ® RESTORATION or oil-based primers such as KILZ® ORIGINAL (interior use) or KILZ® ORIGINAL EXTERIOR.


  • Eye protection is recommended. For spray applications, a small amount of water (no more than 1/2 pint per gallon) may be added. Do not thin for stainblocking applications. Only apply if surface, air and product temperatures are between 50°-90°F (10°-32°C). Stir thoroughly before and occasionally during use.
  • 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 – .017-.021 tip / 60 mesh filter
  • Prime the entire surface to ensure a uniform appearance of the topcoat.
  • Stainblocking: KILZ 2 GRAY Primer is formulated to block light to medium stains. For heavy stains use oil-based primers such as KILZ® ORIGINAL and KILZ® ORIGINAL EXTERIOR or water-based primers such as KILZ MAX® and KILZ® PREMIUM.
  • Tinting: KILZ 2 GRAY primer may be tinted with up to 2 ounces of universal colorant per gallon. Tinting to a lighter shade than the topcoat is recommended.
  • Coverage: 300-400 sq. ft. (27.87-37 m²) per gallon depending on application method and surface porosity.

Dry Time at 77°F (25°C), 50% RH

  • Dries to the touch in 30 minutes.

  • Can be recoated or topcoated in one hour with latex or oil-based paint.

  • Application at lower temperatures, in high humidity or in poorly ventilated areas will affect dry time.

Clean-Up & Disposal

  • Clean equipment and paint spatters with warm, soapy water.
  • Do not dispose of this product down a drain. Please consider donating any unused product. For recycling or disposal information contact your local household refuse collection service.
  • 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.


Warning! Irritant!

HARMFUL OR FATAL IF SWALLOWED. CONTAINS ETHYLENE GLYCOL. Avoid contact with eyes. May cause eye, nose and throat irritation. Avoid breathing of dust, vapors or spray mist. Open windows and doors or use other means to ensure fresh air entry during application and drying. If you experience eye watering, headache, or dizziness, or if air monitoring demonstrates vapor / mist levels are above applicable limits, wear an appropriate, properly fitted respirator (NIOSH / MSHA TC 23C or equivalent) during and after application. Follow respirator manufacturer’s direction for respirator use. Close container after each use. Wash thoroughly after handling and before smoking and eating.


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

First Aid

If swallowed, do not induce vomiting. Get medical attention immediately. If you experience difficulty in breathing, leave the area to obtain fresh air. If continued difficulty is experienced, get medical attention immediately. In case of eye contact, flush eyes immediately with plenty of water for at least 15 minutes and get medical attention.

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


  • Base


  • Int/Ext


  • Color


  • Coverage - Low

    300 sq. ft.

  • Mils Wet


  • Mils Dry


  • Coverage High

    400 sq. ft.

  • Mils Wet


  • Mils Dry


  • Finish @ 85°

    < 10

  • Min Application Temp

    50°F (10°C)

  • Max Application Temp

    90°F (32°C)

  • Viscosity

    95 - 104 KU

  • Dry To Touch

    30 min

  • Dry To Recoat

    1 hour

  • Max Tint

    2 oz

  • VOC

    <50 g/L

  • Brush

    Nylon / Poly

  • Roller - Smooth Surface

    3/8" - 1/2" nap

  • Roller - Porous Surface

    1/2" - 3/4" nap

  • Spray Tip

    .017" - .021"

  • Spray Filter

    60 mesh

  • Spray Pressure

    2,500 - 3,200

  • Volume Solids


  • Weight Solids


  • Flashpoint