1. How to Prepare & Coat an Exterior Concrete Surface | Behr Paint

  2. Find how to prepare and coat an exterior concrete surface with this guide from Behr Paint.

  3. How to paint exterior flooring, exterior floor paint, exterior floor coating, exterior floor covering, exterior floor protection, exterior floor concrete paint, exterior floor epoxy, exterior floors

  4. Everything you need to know about painting, preparing, and coating a floor can be found in Behr Paint's how to guides. From cleaning to painting, Behr provides all the steps necessary for a professional finish.

  5. Before any coating is applied to a concrete surface, be sure to etch and clean uncoated concrete. Already coated concrete needs only to be cleaned. Once the concrete surface is clean and dry, apply CONCRETE & MASONRY BONDING PRIMER NO. 880 to any uncoated surface. For coated concrete surfaces, see the coating product label for primer recommendations.

  6. Using a rag, wipe off all oil and grease spills from the concrete surface. Remove all dirt or debris with a broom.

    TIP: New concrete must cure for 30 days before you can clean it or apply a topcoat.

  7. Pour CONCRETE & MASONRY CLEANER/ETCHER NO. 991 into a plastic watering can or a plastic pump sprayer. Using the sprayer, apply the product to the uncoated concrete surface area. Allow the product to remain on the surface for 10–20 minutes.

    TIP: For best results, apply the product onto a dry surface.

  8. Using a stiff bristled, non-metal brush or broom, vigorously scrub the concrete surface. DO NOT allow the surface to dry.

    TIP: Heavily stained areas or older stains may require additional applications.

  9. Thoroughly rinse the concrete surface with clean water using either a garden hose with a high-pressure nozzle or a pressure washer.

  10. Using a non-metal squeegee or mop, remove the excess water from the entire project area.

  11. Allow the area to dry.

    TIP: The surface is ready for priming when it feels like medium grit sandpaper and no residue or loose concrete remains.

  12. Pour thoroughly mixed primer into a bucket and dip a quality 2”-2 1/2” wide nylon/polyester brush into the primer.

    TIP: Before you apply a surface coating to your uncoated concrete, use CONCRETE & MASONRY BONDING PRIMER NO. 880. This type of primer is specially formulated for uncoated concrete surfaces and will give the coating ultimate durability and protection.

  13. With your brush, paint (cut in) a 2”–3" wide area around the perimeter of the concrete surface. Start in a corner and continue along the edges.

  14. From the bucket, pour primer into a paint tray and work a roller into the tray until it is fully loaded with primer. For best results, use a ½”–¾” roller cover.

    TIP: For larger areas consider using a 5-gallon bucket and a bucket grid.

  15. Starting at a corner of the concrete surface, roll the primer onto a 4' long x 2' wide section.

    TIP: Attach an extension pole onto the roller frame.

  16. Reload the roller with primer and continue to the next 4’ x 2’ section. As you go, roll back into the previously applied area.

    TIP: Be sure to roll over the cut in area as well.

  17. Repeat the process until the entire concrete surface is covered. Allow the surface to dry a minimum of 8 hours before applying a topcoat.

  18. Pour thoroughly mixed floor coating into a bucket and dip a quality 2”–2½” wide nylon/polyester brush into the coating.

    TIP: To avoid drips, tap off any excess coating against the inside wall of the bucket.

  19. With your brush, paint (cut in) a 2”–3" wide area around the perimeter of the primed surface. Start in a corner and continue along the edge.

  20. From the bucket, pour the floor coating into a paint tray and work a roller into the tray until it is fully loaded with coating. For best results, use a ½”–¾” roller cover.

    TIP: For larger areas consider using a 5-gallon bucket and a bucket grid.

  21. Starting at a corner of the concrete surface, roll the coating onto a 4' long x 2' wide section.

    TIP: Attach an extension pole onto the roller frame.

  22. Reload the roller with coating and continue to the next 4’ x 2’ section. As you go, roll back into the previously applied area.

  23. Repeat the process of painting and back rolling until the project is complete.

  24. Color Used: Brick No. C70-30

  25. How to Prepare and Coat a Concrete Surface

  26. Follow these instructions to prepare and coat your exterior concrete surfaces.
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  28. extfloor_intro_image.jpg

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  34. Intermediate DIY'er
  35. exterior, repairs, concrete, floors, prepare, coat, prime, floor coating, degreasing, cleaning, project, surface, cleaners, CONCRETE & MASONRY CLEANER/DEGREASER NO. 990, CONCRETE & MASONRY CLEANER/ETCHER NO. 991, CONCRETE & MASONRY PAINT STRIPPER NO. 992
  36. /printable/howto/how_to_coat_ext_concrete.pdf
  37. For Best Results
  38. Before any coating is applied to a concrete surface, be sure to etch and clean uncoated concrete. Already coated concrete needs only to be cleaned. Once the concrete surface is clean and dry, apply CONCRETE &amp; MASONRY BONDING PRIMER NO. 880 to any uncoated surface. For coated concrete surfaces, see the coating product label for primer recommendations.<br><br>
  39. /howto/extfloor_best_results.jpg
  40. How to Clean and Etch a Concrete Surface
  41. Step 1
  42. Using a rag, wipe off all oil and grease spills from the concrete surface. Remove all dirt or debris with a broom. <br /><br /><font face="Frutiger67Condensed">TIP:</font> New concrete must cure for 30 days before you can clean it or apply a topcoat.
  43. /howto/4bfccpopup.jpg
  44. /howto/4bfcc.jpg

  45. 4bfccpopup.jpg

  46. Step 2
  47. Pour CONCRETE & MASONRY CLEANER/ETCHER NO. 991 into a plastic watering can or a plastic pump sprayer. Using the sprayer, apply the product to the uncoated concrete surface area. Allow the product to remain on the surface for 10–20 minutes. <br /><br /><font face="Frutiger67Condensed">TIP:</font> For best results, apply the product onto a dry surface.
  48. /howto/6bfccpopup.jpg
  49. /howto/6bfcc.jpg

  50. 6bfccpopup.jpg

  51. Step 3
  52. Using a stiff bristled, non-metal brush or broom, vigorously scrub the concrete surface. DO NOT allow the surface to dry. <br /><br /><font face="Frutiger67Condensed">TIP:</font> Heavily stained areas or older stains may require additional applications.
  53. /howto/7bfccpopup.jpg
  54. /howto/7bfcc.jpg

  55. 7bfccpopup.jpg

  56. Step 4
  57. Thoroughly rinse the concrete surface with clean water using either a garden hose with a high-pressure nozzle or a pressure washer.
  58. /howto/8bfccpopup.jpg
  59. /howto/8bfcc.jpg

  60. 8bfccpopup.jpg

  61. Step 5
  62. Using a non-metal squeegee or mop, remove the excess water from the entire project area.
  63. /howto/8.5bfccpopup.jpg
  64. /howto/8.5bfcc.jpg

  65. 8.5bfccpopup.jpg

  66. Step 6
  67. Allow the area to dry. <br /><br /><font face="Frutiger67Condensed">TIP:</font> The surface is ready for priming when it feels like medium grit sandpaper and no residue or loose concrete remains.
  68. /howto/15bfccpopup.jpg
  69. /howto/15bfcc.jpg

  70. 15bfccpopup.jpg

  71. How to Prime a Concrete Surface
  72. Step 1
  73. Pour thoroughly mixed primer into a bucket and dip a quality 2”-2 1/2” wide nylon/polyester brush into the primer. <br /><br /><font face="Frutiger67Condensed">TIP:</font> Before you apply a surface coating to your uncoated concrete, use CONCRETE & MASONRY BONDING PRIMER NO. 880. This type of primer is specially formulated for uncoated concrete surfaces and will give the coating ultimate durability and protection.
  74. /howto/16bfcc.3popup.jpg
  75. /howto/16bfcc.3.jpg

  76. 16bfcc.3popup.jpg

  77. Step 2
  78. With your brush, paint (cut in) a 2”–3" wide area around the perimeter of the concrete surface. Start in a corner and continue along the edges.
  79. /howto/17bfccpopup.jpg
  80. /howto/17bfcc.jpg

  81. 17bfccpopup.jpg

  82. Step 3
  83. From the bucket, pour primer into a paint tray and work a roller into the tray until it is fully loaded with primer. For best results, use a ½”–¾” roller cover. <br /><br /><font face="Frutiger67Condensed">TIP:</font> For larger areas consider using a 5-gallon bucket and a bucket grid.
  84. /howto/17.5bfccpopup.jpg
  85. /howto/17.5bfcc.jpg

  86. 17.5bfccpopup.jpg

  87. Step 4
  88. Starting at a corner of the concrete surface, roll the primer onto a 4' long x 2' wide section. <br /><br /><font face="Frutiger67Condensed">TIP:</font> Attach an extension pole onto the roller frame.
  89. /howto/19bfccpopup.jpg
  90. /howto/19bfcc.jpg

  91. 19bfccpopup.jpg

  92. Step 5
  93. Reload the roller with primer and continue to the next 4’ x 2’ section. As you go, roll back into the previously applied area. <br /><br /><font face="Frutiger67Condensed">TIP:</font> Be sure to roll over the cut in area as well.
  94. /howto/18bfccpopup.jpg
  95. /howto/18bfcc.jpg

  96. 18bfccpopup.jpg

  97. Step 6
  98. Repeat the process until the entire concrete surface is covered. Allow the surface to dry a minimum of 8 hours before applying a topcoat.
  99. /howto/20bfccpopup.jpg
  100. /howto/20bfcc.jpg

  101. 20bfccpopup.jpg

  102. How to Coat a Concrete Surface
  103. Step 1
  104. Pour thoroughly mixed floor coating into a bucket and dip a quality 2”–2½” wide nylon/polyester brush into the coating. <br /><br /><font face="Frutiger67Condensed">TIP:</font> To avoid drips, tap off any excess coating against the inside wall of the bucket.
  105. /howto/extpaint2_1popup.jpg
  106. /howto/extpaint2_1.jpg

  107. extpaint2_1popup.jpg

  108. Step 2
  109. With your brush, paint (cut in) a 2”–3" wide area around the perimeter of the primed surface. Start in a corner and continue along the edge.
  110. /howto/extpaint2_2popup.jpg
  111. /howto/extpaint2_2.jpg

  112. extpaint2_2popup.jpg

  113. Step 3
  114. From the bucket, pour the floor coating into a paint tray and work a roller into the tray until it is fully loaded with coating. For best results, use a ½”–¾” roller cover. <br /><br /><font face="Frutiger67Condensed">TIP:</font> For larger areas consider using a 5-gallon bucket and a bucket grid.
  115. /howto/extpaint2_3popup.jpg
  116. /howto/extpaint2_3.jpg

  117. extpaint2_3popup.jpg

  118. Step 4
  119. Starting at a corner of the concrete surface, roll the coating onto a 4' long x 2' wide section. <br /><br /><font face="Frutiger67Condensed">TIP:</font> Attach an extension pole onto the roller frame.
  120. /howto/extpaint2_5popup.jpg
  121. /howto/extpaint2_5.jpg

  122. extpaint2_5popup.jpg

  123. Step 5
  124. Reload the roller with coating and continue to the next 4’ x 2’ section. As you go, roll back into the previously applied area.
  125. /howto/extpaint2_4popup.jpg
  126. /howto/extpaint2_4.jpg

  127. extpaint2_4popup.jpg

  128. Step 6
  129. Repeat the process of painting and back rolling until the project is complete.
  130. /howto/extpaint2_7popup.jpg
  131. /howto/extpaint2_7.jpg

  132. extpaint2_7popup.jpg

  133. <font face="Frutiger67Condensed"><font face="Frutiger76Italic">Color Used:</font></font> Brick No. C70-30
  134. Bucket
  135. /equipment/2galbucket.png
  136. Broom (Stiff Bristle)
  137. /equipment/broom.png
  138. Brush (2”–2½”)
  139. /equipment/brush_nyl.png
  140. Bucket Grid
  141. /equipment/bucketgrid.png
  142. Chemical Resistant Gloves
  143. /equipment/chemicalgloves.png
  144. Extension Pole
  145. /equipment/extensionpole.png
  146. Hose
  147. /equipment/gardenhose.png
  148. High pressure Nozzle
  149. /equipment/nozzle.png
  150. Mop
  151. /equipment/mop.png
  152. Paint Can Opener
  153. /equipment/paintopener.png
  154. Paint Tray
  155. /equipment/painttray.png
  156. Paint Tray Liner
  157. /equipment/painttryliner.png
  158. Protective Apparel
  159. /equipment/protapparel.png
  160. Pump Sprayer
  161. /equipment/pumpsprayer.png
  162. Rags
  163. /equipment/rags.png
  164. Roller Cover
  165. /equipment/rollercover.png
  166. Roller Frame
  167. /equipment/roller.png
  168. Stir Stick
  169. /equipment/stirsticks.png

  170. BEHR PREMIUM<font face='Superscript'>®</font> Concrete & Masonry Degreaser & Cleaner No. 990

  171. Concrete & Masonry Cleaner/Degreaser No. 990-N
  172. /Behr/Marketing/Products/can_cuts/990_01_C.png
  173. 10150070000500000A-E
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  180. BEHR PREMIUM<font face='Superscript'>®</font> Concrete & Masonry Cleaner & Etcher No. 991

  181. BEHR PREMIUM® Concrete & Masonry Cleaner & Etcher No. 991-N
  182. /Behr/Marketing/Products/can_cuts/991_01_C.png
  183. 10150070000500000B-E
  184. 1
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  186. 0x95836F
  187. 0xC6AF94
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  189. Brown Background Image

  190. BEHR PREMIUM<font face='Superscript'>®</font> Concrete & Masonry Paint Stripper No. 992

  191. BEHR PREMIUM® Concrete & Masonry Paint Stripper No. 992
  192. /Behr/Marketing/Products/can_cuts/992_01_C.png
  193. 10150070000500000C-E
  194. 1
  195. /Marketing/Page_Images/how_to_page_image_blue.jpg
  196. 0x7D999F
  197. 0xBBCDCA
  198. normal

  199. Blue Background Image

  200. BEHR PREMIUM<font face='Superscript'>®</font> Concrete & Masonry Bonding Primer No. 880

  201. BEHR PREMIUM® Concrete & Masonry Bonding Primer No. 880
  202. /Behr/Marketing/Products/can_cuts/specialty_1g_880_C.png
  203. 1015007000010-I
  204. 1
  205. /BehrPro/Marketing/Other_Page_Images/Prod_Cat_Detail_Pages/page_background_image_brown.jpg
  206. 0x95836F
  207. 0xC6AF94
  208. normal

  209. Brown Background Image

  210. BEHR PREMIUM<font face='Superscript'>®</font> Solid Color Concrete Stain

  211. BEHR PREMIUM® Solid Color Concrete Stain
  212. /Behr/Marketing/Products/can_cuts/specialty_1g_800_C.png
  213. 10150070000300000-I
  214. 1
  215. /BehrPro/Marketing/Other_Page_Images/Prod_Cat_Detail_Pages/page_background_image_brown.jpg
  216. 0x95836F
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  219. Brown Background Image

  220. BEHR PREMIUM<font face='Superscript'>®</font> Semi-Transparent Concrete Stain

  221. BEHR PREMIUM® Semi-Transparent Concrete Stain
  222. /Behr/Marketing/Products/can_cuts/specialty_1g_850_C.png
  223. 10204070000550000-I
  224. 1
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  226. 0x95836F
  227. 0xC6AF94
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  229. Brown Background Image

  230. BEHR PREMIUM<font face='Superscript'>®</font> Porch & Patio Floor Paint - Gloss

  231. BEHR PREMIUM® Porch & Patio Floor Paint - Gloss
  232. /Behr/Marketing/Products/can_cuts/porch_1g_6794_C.png
  233. 10204070000100000A-E
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  239. Brown Background Image

  240. BEHR PREMIUM<font face='Superscript'>®</font> 1-Part Epoxy Concrete & Garage Floor Paint

  241. BEHR PREMIUM® 1-Part Epoxy Concrete & Garage Floor Paint
  242. /Behr/Marketing/Products/can_cuts/specialty_1g_901_C.png
  243. 10150070000200000-I
  244. 1
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  246. 0x95836F
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  249. Brown Background Image

  250. BEHR PREMIUM<font face='Superscript'>®</font> Wet-Look Sealer No. 985

  251. BEHR PREMIUM® Wet-Look Sealer No. 985
  252. /Behr/Marketing/Products/can_cuts/985_01_C.png
  253. 1015009600030-E
  254. 1
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  259. Brown Background Image

  260. BEHR PREMIUM<font face='Superscript'>®</font> Low-Lustre Sealer No. 986

  261. BEHR PREMIUM® Low-Lustre Sealer No. 986
  262. /Behr/Marketing/Products/can_cuts/986_01_C.png
  263. 1015009600040-E
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  269. Blue Background Image

  270. Explore Paint World

  271. Explore Paintworld<br><br>
  272. /Behr/Products/product_images/paintworld.png
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  275. layer
  276. 850.0
  277. 400.0