Do You Have To Prime Hardie Siding. Our primer is optimized for superior adhesion to 3rd party topcoats. The good news is hardie siding is easy to repaint. Re applying caulking when it has begun to show signs of wear can help keep moisture from getting into the wall cavity.
Do not use stains or oil based alkyd paints on james hardie products. For additional information on finishing james hardie products download technical bulletin 22 from here.
If your siding is unprimed the time frame shortens to 90 days or 3 months to have surfaces painted.
Whether you ve got a colorplus finish or custom paint on your existing hardie siding you don t have to use primer when re painting hardie. Whether you ve got a colorplus finish or custom paint on your existing hardie siding you don t have to use primer when re painting hardie. Remember you ll still be purchasing paint and potentially hiring a crew of painters if you choose primed board instead of james hardie colorplus siding. If your siding is unprimed the time frame shortens to 90 days or 3 months to have surfaces painted.
