S-750 THIN BRICK POINTING MORTAR

PRODUCT DESCRIPTION:

S-750 is a factory mixed masonry cement mortar mix designed for use as a pointing mortar that is applied manually, with a grout bag or with a mortar dispensing gun. S-750 was designed specifically for grouting thin veneer brick units such as Summitville Thin Brick. S-750 may be used as a tuck pointing mortar by reducing the liquid content of the mix. S-750 has good tooling characteristics not only for appearance, but to seal the interface between mortar and masonry unit. Brick should be set on an approved substrate using S-810/S-777 tile setting mortar system which has cured for a minimum of 48 hours at 70 degrees F., before grouting.

TECHNICAL DATA: Physical Properties:

MIXING FOR DISPENSING GUN:

Use a mortar dispensing gun such as a QUIKPOINT® mortar gun from QUIKPOINT, Inc., the Mortar Gun® as manufactured by the Mortar Gun Co. in Canton, Ohio, or a grout bag. S-750 should be mixed with 2-1/2-3 oz. of liquid per one pound of powder. Mix 2-5 minutes, preferably with a slow speed mechanical mixer. Let mortar stand approximately 10-15 minutes for prehydration. Add liquid as necessary to bring mortar to proper consistency. Mortar must be used within 1-1/2 hours of its initial mixing. Mortar may be tempered as required within this 1-1/2 hour time interval. After this time interval, do not temper. The mortar must be discarded and fresh mortar prepared.

MIXING FOR TUCK POINTING:

Mix S-750 with sufficient cool, potable water (2-2-1/2 oz. of liquid per one pound of powder) to produce a damp mix that will retain its shape when pressed into a ball by hand. Mix 2-5 minutes, preferably with a mechanical mixer. Let mortar stand for not less than 10 minutes for pre-hydration, Then add sufficient liquid to bring S-750 to the proper consistency for tuck pointing.

APPLICATION FOR DISPENSING GUN:

Charge dispensing gun, such as a QUIKPOINT® mortar gun from QUIKPOINT, Inc., the Mortar Gun® as manufactured by the Mortar Gun Co. in Canton, Ohio, or a grout bag with S-750 mixed to the proper consistency. Apply to cleaned joint approximately flush with face of brick. Allow mortar to set until its surface is thumb-print hard before tooling joint. This time will depend on temperature, humidity and surface absorption rates. Brush joints to remove excess mortar before mortar cures.

APPLICATION FOR TUCK POINTING:

After S-750 has pre-hydrated for approximately 20 minutes add liquid to bring S-750 to proper consistency for tuck pointing. (Retain its shape when pressed into a ball by hand). Apply to cleaned joints and allow to set until mortar is thumb-print hard before tooling joints. This time will depend on temperature, humidity and surface absorption rates. Brush joints to remove excess mortar before mortar cures.

COLOR:

Natural Gray.

CAUTION:

If the entire wall is not to be repointed, the color and texture should closely match those of the original mortar. An exact match is virtually impossible to achieve. If very rapid drying of S-750 under hot, dry and windy conditions should occur, a fog spray should be used to very lightly wet the masonry before pointing joints. Protect from rain for 24 hours.

COVERAGE:

For thin brick applications:
Nominal brick size -- 2-1/4" x 7-3/4" x 3/8" with cushion edge.

PACKAGING:

S-750 is available in a 70 lb. bag.