KING, The SAKRETE People, bring you the SAKRETE mason-craft How-To Video
with a special appearance by SAKRETE Mortar Mix, Type N and SAKRETE Mortar Mix, Type S.
SAKRETE mason-craft is a Type O mortar designed for repointing above-grade on non load-bearing walls.
This product is easy to apply and has exceptional workability.
It's also pre-blended to ensure consistency between batches.
SAKRETE mason-craft is grey in colour, but can be blended with colouring agents for greater versatility.
Use this product to repoint masonry applications indoors and outdoors, where low strength
and superior workability is required.
Do not use SAKRETE mason-craft where Type N mortar or Type s mortar is specified.
For applications requiring conventional Type N mortar, use SAKRETE Mortar Mix, Type N.
For applications requiring conventional Type S mortar, use SAKRETE Mortar Mix, Type S.
This video will show how SAKRETE mason-craft can be used to repoint deteriorated mortar joints
in a non load-bearing block wall.
You will need: hammer and chisel, square and pointed metal trowels, metal jointing tools,
stiff wire brush and soft bristle brush, empty mixing pail, measuring cup, water spray bottle, drill mixer, gloves,
safety glasses, and protective clothing.
The mixing ratio for SAKRETE mason-craft is 290 milliliters, or 10 ounces of water,
per one 2 KG, or 4.4 lb pail of product.
For this repair, we're using half a pail of product.
145 milliliters, or 5 ounces of water, is required per 1 kilogram or 2.2 pounds of powder.
Use only the recommended water content to achieve the desired plastic and hardened properties of the mortar.
Since it's recommended to wait 30 minutes between mixing the material and applying it
to the masonry application, mix before preparing the surface.
Add the water to the pail,
followed by the product.
Mix using a trowel or run a drill mixer as the powder is gradually added.
Never use on-site admixtures, as they will alter the set time, workability, and other properties of the mortar.
Mix until the material is heavy-bodied enough to retain its shape when fashioned into a ball by hand.
During the wait period before application, remove any loose material from the joint area
Using a hammer and chisel, chip away at the old mortar to widen the crack.
Then, use a stiff wire brush, followed by a soft bristle brush.
Next, moisten this area, leaving the joint saturated, but free of standing water.
Ensure that substrate and mortar temperature is between 5 °C (40 °F) and 38 °C (100 °F)
and maintained in this range for 72 hours after application.
Once 30 minutes has passed after mixing, place the material into the joint in successive layers.
Do not exceed a maximum depth of 6 millimeters, or 1/4 of an inch per layer.
Compact well and let dry slightly before adding additional layers.
Tool the joints prior to the final set time in order to optimize carbonation.
Use a wet cure method, starting from the initial set of the mortar.
To do this, mist the repointed area a few times a day, for three days.
Once complete, the joint repointed with SAKRETE mason-craft
will meet compressive strength requirements of 2.4 MPa, or 350 psi.
Additionally, the repointed joint will be aesthetically pleasing within a masonry brick or concrete block wall.
King Packaged Materials Company offers a wide variety of professional grade, easy-to-use products
designed for DIY and contractor-based home repair and improvement projects.
Our portfolio includes well-known KING and SAKRETE brand products.
For more information, visit www.king-products.com