PRODUCT DESCRIPTION: NBS 30 Paint and Stain Additive is designed for use in exterior coatings. It will deter and inhibit insects from burrowing through or crawling on exterior coatings and is appropriate for use in residential applications as well as dairy facilities, drive-in restaurants, golf courses, parks, playgrounds, poultry houses, recreational areas, schools, landscape areas, zoos, etc. NBS 30 Additive is effective in controlling crawling and nesting activity on painted or stained surfaces to which it has been added. NBS 30 Additive is soluble or dispersible in commercial oil and water based exterior paints and stains. It’s also dispersible in plain water for a gentle, botanical approach to nuisance insect control. NBS 30 is NOT an insect killer and is not intended for control of termites or other wood ingesting insects. Treatments can last 1-2 years and should be reapplied whenever painting or staining.

TARGET PESTS:    Ants, Asian Ladybugs, carpenter bees, carpenter ants, cockroaches, beetles, dirt daubers, fleas, ladybugs, lizards, mites, moths, silverfish, spiders, tree frogs, ticks, wasps, woodpeckers and more.

WHERE TO USE IT: Exterior paints and stains.

RATE OF APPLICATION:     3.2 oz per gallon of paint or stain; the pint is enough for 5 gallons of paint or stain, oil or water base. When used with paint or stain, repellency can last over 1 year. When mixed with water, use 3.2 oz per gallon and spray over 500 sq/ft of exterior surface area. Can be used safely on home siding, plants, etc. When used this way, treatments will only last 30-60 days.




$70.00   (451053) 16 oz. (3+ for $63.00 ea.)
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March 22, 2012
April 19, 2012


May 5, 2015

Bonnie Sult @ 9:11 am #


Bee proofing. We received the product quickly and believe it will do great but we haven’t applied it yet.

March 28, 2016

Bonnie Sult @ 2:09 pm #


@Bonnie Sult:
We did use it on a cedar sided tiny home. It did GREAT! We stopped seeing the carpenter bees and wasps that were invading the house.

March 27, 2016

Hannah @ 5:01 pm #

Will this work well 0n polyurethane or just in stain and paint??

June 18, 2016

Stephanie @ 12:17 pm #

Is NBS harmful to birds?

June 21, 2016

robert boyer @ 6:32 pm #

@Hannah: does the dirt dauber have to come into contact with this product (NBS) or does it repel them by odor also?? I am having problems with daubers in my outboard motor…the dirt gets sucked into air flow and destroys engine…can I stain several smaller wood pieces with product and toss into engine cowling and let the odor deter the pests….not concerned with killing them..as the carcass might find is way into engine that way….also would product stain canvas motor cover if I sprayed it around edges? Cover fits tight and would block most entrances…afraid to just spray or paint product inside cowling as it could mess with plastic and aluminum parts and when it dried it might get pulled loose by the air flow and enter where it should not be….inside the cylinders…..also wonder about Viper…would it work the same way??….thank you for any assistance you can give in this matter… Bob Boyer

June 22, 2016
August 8, 2016

Harry @ 8:07 am #

We just built a cedar playset for my daughter and as soon as we finished putting it together, Carpenter Bees came from all over. I wanted to know if NBS PAINT ADDITIVE is ok for use on something that children will play on.

Thank you.

October 3, 2016

Gary @ 11:44 am #

I’m having the same problem with carpenter bees being attracted to pressure treated wood. The wood I bought already has a brown stain of some kind on it, so it doesn’t really need to be stained. Will either or both of these products be effective if mixed with Thompson’s Water Seal or a similar product? I plan to apply the sealer to all sides of the wood before construction.

August 21, 2017

Jason Davidovics @ 1:09 pm #

Is this plant and flower safe? I am having issues with swarms of bees on flowers budding right by my front door. I’ve tried citronella and peppermint essential oils with no impact. I don’t want to move the flowers because they are beautiful and I’m trying not to kill the bees but I’m getting tired of my kids and I being held hostage in our house.

November 27, 2017

Lynn Hutcherson @ 7:45 pm #

I want to treat my deck and some window frames with NBS for carpenter bees, this coming Spring 2018. I will also be applying Thompson’s Water Seal to these areas. Should I mix the NBS with water and apply first, then cover with the water seal product, or do I apply the NBS just by itself and then after drying apply the water seal? Nothing needs staining or painting.

November 28, 2017
September 16, 2018

Doug Staples @ 7:25 pm #

Does this add an odor to the paint that people will smell? In other words, will my siding smell bad?

September 17, 2018
November 15, 2018

Rosemarie Zawisha @ 11:41 pm #

Wondering if this product will work around a swimming pool? I live in Arizona & in the warmer months we get paper wasps that land on the pool water. At times there are 4 or 5 siting in the water. Can this be applied on the concrete walkway around the pool & on surrounding plants? We also get annoying flies . Would it get rid of them too?
Rosemarie Zawisha

November 16, 2018
May 29, 2019

Vicki Clancy @ 1:24 pm #

I just renovated our log home. It has a clear coat on top of new stains. Can I mix it with the clear coat? We have carpenter bees burrowing in our logs even after borate was applied. I need to fill the holes and find a way to apply it after the coating was applied.

June 12, 2019

Pete Fuhrmann @ 12:51 pm #


Received product in great time, the smell is not bad and does not cause issues with skin. It does keep bugs away, as I applied the stain, interested to see how long it lasts.

July 2, 2019

Mary Beth Pace @ 9:12 pm #

I have a large play area with sand for my grandkids. The sand wasps love this area, but the kids are afraid of them. I read that this product mixed with water could be sprayed on the sand to repel them. Since it isn’t mixed with a paint product, would this work?

July 3, 2019
July 24, 2019

Adam @ 9:04 pm #

Is this additive corrosive to metal?
Can it be used in paints in paints design for metal application e.g. stainless steel, aluminum etc.

July 25, 2019

Cortney @ 3:32 am #

Can I use this product with permachink stain?!?

Thank you,

November 6, 2019

Anthony Marinello @ 9:13 am #

Will this product when mixed with water and sprayed with a garden sprayer deter pesky woodpeckers?

May 18, 2020

Chad B. @ 6:52 am #


It works! I had two large nests somewhere under my deck. I sprayed a gallon water mixture just to see if this works… from the time I sprayed to walking inside, they were everywhere. I went out and sprayed them when I saw them. That was about a week ago, haven’t seen a wasp since.

June 9, 2020

Lawrence Cannady @ 12:31 pm #

Will this help to keep flies out of the house, every time I open the patio door a hundred flies come in, it seems we live outside city limits sort of in the country. Thanks

June 23, 2020

Andrea @ 9:20 am #


Best bug repellent ever!
I converted all of my outdoor furniture to teak because of its durability. Little did I know that both bees and wasps LOVE to eat the wood. They were causing massive damage. Multiple exterminators came over but none of them were aware of this issue and couldn’t help. One even tried to tell me that the damage wasn’t from bees (until I showed him my videos of the insects eating my furniture).

I found this site and read about the product and decided to give it a try. It’s truly a miracle product! I resealed all of my teak this spring and added the oil to the sealer. I literally haven’t seen one bee/wasp land on my finished pieces. My unfinished pieces are still attractive to them so I know the product is doing what it’s intended to do. The smell is strong initially but dissipates over time, and it doesn’t really bother me anyway. The price is well worth it for its effectiveness!

July 15, 2020

Noah @ 3:45 pm #

Can I create a water mixture with NBS to spray on my lawn and hedges to repel wasps in my yard?

April 4, 2021

Sarah @ 11:48 am #

Can I spray this on outdoor furniture before going out and using it? Also, if sprayed on the grass and grass gets eaten by a dog… is it safe for pets?


July 14, 2021

Annette @ 3:02 pm #



If I spray this product on the exterior of a house that has just been painted white, will there be any staining?

Thank you!

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