To hide imperfections, such as cracks and dents, the Zinsser Bulls Eye 1-2-3 Plus Interior/Exterior Water-Based Primer works well. To promote adhesion and durability on surfaces, such as metal or tile, the Rust-Oleum Zinsser Bulls Eye 1-2-3 Plus Primer is an excellent choice.
Rust-Oleum Zinsser Peel Stop Triple Thick Binding Primer may either be applied lightly for basic priming and sealing, or followed with several thick coats to bridge and fill cracked and uneven surfaces. This primer does need to be back brushed or rolled to work the product into cracks and edges of the old paint.
Dulux Crack Bridging Wall Primer is suitable for application on interior and exterior walls, which are, prone to hairline cracking due to movement of the substrate to be painted. This product is a waterborne emulsion paint with very good fungal & algae resistance and a film, which is flexible and alkali resistant.
A popular choice is Zinsser's Peel Stop, which is a water-based primer that penetrates chalky surfaces and helps to glue-down the edges of cracking and peeling coatings to the substrate so they can be successfully painted over. It can be used on both interior and exterior applications in lieu of paint stripping.
KILZ OVER ARMOR® Textured Coating is a lightly-textured, solid color coating designed to bridge cracks, hide imperfections and give a uniform look to old, weathered wood. KILZ OVER ARMOR Textured Coating can also be used over cracked and weathered concrete. Available in a variety of “wood stain” and “concrete” colors.
For minor, hairline cracks, drywall patching is an effective option. Drywall filler can smooth out the surface, and this solution works well for cracks that won't require a more durable fix. If you're planning to wallpaper over the area, smoothing out the cracks first ensures a seamless application and better results.
Zinsser Peel Stop Primer is a clear, flexible bridging sealer for surfaces where paint is peeling, flaking, dusting or chalking is a problem. This product essentially glues down cracks and graps under edges of old paint, forming a tough film that remains flexible and lets moisture escape.
If you have various stains, shellac Bonding primer is the ideal choice. It can be used to cover rough surfaces and old varnish as well as metal and ceramic.
Remove all of the cracked and/or flaked paint in the damaged areas, using paint-sanders*, scrapers, or heat guns. Use the appropriate primer to pre-coat and seal the prepped surfaces. Apply fresh coats of quality exterior latex paints to primed surfaces.
BEDEC Interior-Flex is an elastomeric matt emulsion paint formulated to coat interior ceilings and walls. Interior-Flex is a unique product designed to bridge hairline cracks and flex with the substrate where movement causes cracking with conventional matt emulsion.
Simply enlarge the cracks slightly using a scraper (fillers don't work well in hairline cracks), dust off and fill with a suitable product such as Polycell Trade Interior filler. Dampen the hole or crack with water - this will help the filler to bond.
Paint designed for uneven surfaces may be sold under a range of names including elastomeric paint, high-build paint, crack-free paint or renovation paint (which is basically a filler and undercoat in one). These paints are much thicker than ordinary paints which gives them much better coverage.
For surfaces with hairline cracks, when the wall is repaired, choose the flexible primer system that can cover up hairline cracks to make the wall smooth.
Acrylic Sealants: Acrylic sealants are water-based materials used for filling cracks in concrete and masonry. They provide a flexible, paintable finish and are easy to apply.
Breeze through prep work, skip the primer and start enjoying your painted walls faster with Glidden Performance Edge 3 IN 1. This groundbreaking formula is the one and only paint that can actually fill minor surface imperfections, like small nail holes and hairline cracks, and then prime and paint in a single coat!*
(Note: Bonding primers are not recommended for use over peeling paint).
A 'bond coat' primer that's great for hard-to-stick surfaces, it offers excellent adhesion without sanding. Bulls Eye® 1-2-3 also prevents rust formation when applied over clean ferrous metal such as iron and steel.
Interior | Exterior Primer. KILZ® ADHESION Primer is a water-base, modified-acrylic primer specifically formulated to bond to a variety of 'tough-to-paint' surfaces.
For interior repairs you may want to start with Premium Wall & Wood Primer or try a finish that's a paint and primer in one like Duration Home® Interior Acrylic Latex.
Take care prepping surfaces before painting: Only apply paint to surfaces that have been properly sanded, cleaned, and primed. Never paint over cracked paint. Allow paint to dry thoroughly before adding another coat.
Porous surfaces, such as drywall joint compound and masonry, require a primer that can penetrate and seal the surface. The KILZ Premium High-Hide Stain Blocking Interior/Exterior Latex Primer is an excellent choice for these surfaces.
Clean the surface, apply a bonding agent, fill the crack with suitable cement mortar and finish by smoothing the surface for a lasting repair.