Picture of Computer. Picture of Computer

Great News!

You can now shop for Behr Paint online.

Order your favourite Behr colours at homedepot.ca and pick up at store.

AIzaSyBMJLehm8j6j0La8w7yFA5HiR9WVNS8rHc
6Lcwsf8UAAAAAJybOtreqf2wUsJvuhHt298f4zrc
previous page Back
Close up image of a surface that look like the staining substance has bled through the paint film.

Causes

  • Failure to apply a proper primer to hardboard before applying the topcoat.
  • Allowing hardboard siding to weather before being painted.
  • Use of dark paint colours, which absorb heat and can accelerate wax bleed.
  • Too little paint; wax bleeding is more likely with thin paint films.
  • Applying a hard finish over a softer coat without priming, or painting over a glossy surface without sanding.
  • Using low-quality paints with lower resin content that allows wax to bleed through the paint film.

Solutions

  • Unprimed hardboard should be primed or painted within 30 days. Factory-primed hardboard should be painted within 90 days of installation. Apply the recommended primer and two topcoats on unprimed hardboards.
  • If wax bleed is observed, first determine if wax bleeding is the problem:
    • Place a few drops of bleach on the discoloured area. Household bleach does not affect wax so if there is no whitening or bleaching, the stain is likely to wax.
    • Place a few drops of water on both normal and discoloured areas. If the water beads up and runs off, a wax film probably exists.
  • If the wax is light or moderate, the area can be cleaned with a detergent solution. In cases of severe bleeding, the surface must be cleaned thoroughly with mineral spirits. Dispose of all waste materials in accordance with local regulations.
  • Allow the surface to dry thoroughly before priming. Prime the surface with a high-quality primer and finish with high-quality exterior paint.

READY TO GET STARTED?

Contact a Behr Pro Rep Icon

CONTACT A BEHR PRO® REP

Your reputation depends on your ability to do the job right. BEHR can help.

Find a rep
Technical Services Icon

TECHNICAL SERVICES

1-800-661-1591
Mon - Fri, 6am-3pm PST
Sat. & Sun., Closed

PRO XTRA logo

JOIN THE HOME DEPOT® PRO XTRA LOYALTY PROGRAM

Get 10% - 20% Back in Quarterly Rewards
BEHR® Paints, Stains & Primers.

sign up on homedepot.ca