Here are 5 basic steps to help you do the job successfully.
Painting concrete block walls nz.
Resene recommend that three coats are applied to ensure that all the voids and holes in the blockwork are filled and therefore waterproofed.
The first step when preparing concrete block walls is pressure washing.
There are two basic types of finish on concrete block smooth and split face.
Pads produce a smooth paint finish without the spatter that rollers sometimes cause.
Allow to dry for 24 hours.
Remember not to paint yourself into a corner start at the back and work towards an exit point.
Use a commercial style pressure washer and at least 2500 psi.
The paint should not be streaky or show brush strokes.
Concrete blocks blockwork unpainted concrete blocks usually need waterproofing with resene x 200.
If the paint is too dry the masking tape can rip the paint film when it is removed.
Pad applicators are perfect for latex or oil base paints stains sealers or wallpaper paste.
Begin applying primer by using a paint brush on the corners and edges of the concrete floor or surface.
Painting concrete plasters and cement based substrates a how to guide.
Two coats of primer are recommended for best results.
Paint should be applied in at least 3 thin layers.
After cutting in use a paint roller to cover the rest of the surface.
Paint your wall with concrete paint.
These painting tools are ideal for exterior siding concrete block shakes shingles and fences.
This is known as cutting in.
They also work well on interior walls ceilings floors and doors.
Allow the primer to dry for at least two hours after each coat.
Step 1 clean the wall.
The paint may be sprayed on rolled on or painted on with a brush.
This web page is an edited version of the resene best system selling training notes provided to resene staff and is provided to enable you to gain a greater understanding of the substrates and paint systems you may encounter in your decorating project.
During the preparation pay attention to any loose mortar and large cracks.
Repeat the same method above to paint the concrete floor.
Start by painting all the edges and detailed areas with a paint brush.
If you properly paint a concrete block wall it will last for years with little upkeep.
A suitable spray pattern is the 15 degree tip held 12 inches from the surface.
Drylok s concrete floor paint is an excellent choice for covering up imperfections.
Remove the masking tape at a 45 angle before the paint dries completely.
The durable paint is resistant to fading cracking peeling and scuffing.
A gallon of drylok has efficient coverage with one gallon covering up to 400 square feet of concrete expanse.
If the paint dries before the tape is removed using a sharp blade score the edge of the tape before removing so that it doesn t pull paint away from the wall.
