Here's 1 technique:

https://www.hunker.com/13413217/how-to-whitewash-a-brick-fireplace

Since you are just doing the mantle, tape off and cover with newspaper any area you do not want to have paint on.

Hi Deanna,

Watered down Masonry Paint or Emulsion Paint! Good luck!

Here is a tutorial:

https://www.hometalk.com/44242119/whitewashed-brick-fireplace

Whitewashed Brick Fireplace

Start with a 50/50 mix of water and paint. After you brush it on the bricks, you can wipe some off with a rag. If it's not white enough, you can always increase the amount of paint.

Here's a post that might help - https://www.youtube.com/watch?v=8BQkat4DZ2g

My cousin took latex paint and thinned it to paint hers. It is beautiful. She is not handy or crafty at all but found YouTube videos that guided her.

Here is a good info https://www.bobvila.com/articles/how-to-whitewash-brick/

here is some help for you

https://www.youtube.com/watch?v=O55rnKOD-ik

Hello. White washing brick sounds like an exciting project. Here’s a link to a product project that I have saved which details lime washing I’m not sure if this is the exact affect you wish to achieve. It may provide useful information.

https://www.blesserhouse.com/limewashed-brick-exterior-makeover-reveal/

There is good information here:

https://renovatedfaith.com/whitewash-a-brick-fireplace/

https://www.hometalk.com/14280811/white-wash-fireplace-brick?expand_all_questions=1#!

White Wash Fireplace Brick

Hi Deanna, hope this helps you out

https://www.youtube.com/watch?v=8BQkat4DZ2g

Hi Deanna: Check this site. I did it in another house and was very happy with the results.

https://www.homedepot.com/c/ah/how-to-whitewash-brick/9ba683603be9fa5395fab9011f795be0

https://www.youtube.com/watch?v=8BQkat4DZ2g

Here is a nifty site. All you do is LEFT click on a picture you like. It will come up larger on the right, and then LEFT click on the larger picture and it will give you more information.

https://www.google.com/search?q=how+to+whitewash+brick+fireplace&client=firefox-b-1-d&tbm=isch&source=iu&ictx=1&fir=Z40TaQOlclIEEM%252CCl03w5yx58xH4M%252C_&vet=1&usg=AI4_-kQanMUbscjZre33VxxgwaPuE_ZCDA&sa=X&ved=2ahUKEwi3nfOq5fbsAhUBKawKHYPlCbgQ9QF6BAgGECo&biw=1252&bih=562#imgrc=Z40TaQOlclIEEM

Good luck

This may help you: https://www.hometalk.com/4242640/painted-brick-fireplace-white-redo

Painted Brick Fireplace - The Nuclear Option

This shows the technique: https://www.youtube.com/watch?v=VtZTaj7e6_g

There are some great posts here:

https://www.hometalk.com/search/posts?filter=whitewash%20bricks

This may help: https://www.hometalk.com/4242640/painted-brick-fireplace-white-redo

Painted Brick Fireplace - The Nuclear Option

Hi Deanna,

Brush, Roller or Sponge, it doesn't matter!