Use and Care Guide

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Sakrete.com • 866-725-7383

The Pro’s Choice Since 1936

Surface Bonding Cement

• Installations must follow local building code requirements for block wall

installations.

• Expansion joints must be specified and incorporated into the block wall

construction as specified and or by following the local building code

requirements.

Exsiting Masonry Walls:

1. Air, Mix and substrate temperatures should be a minimum of 40°F (4°C) and

remain above freezing for 24 hours.

2. Clean area and remove all unsound concrete, grease, oil, paint,

efflorescence, and any other foreign materials that will inhibit performance.

3. Slick and sealed surfaces must be thoroughly roughened.

4. If cracks exist, chip out and enlarge to approximately ½ inch deep and repair

using Sakrete Surface Bonding Cement prior to coating the entire wall.

5. Apply Sakrete Surface Bonding Cement only after repairs are made and

substrate is restored to a sound condition.

6. Dampen surface before applying Surface Bonding Cement.

Dry Stack Walls:

When Surface Bonding Cement is applied to both sides of a block wall the

strength is considerably stronger than when building a traditional mortared

joint wall. This technique is best used when building a dividing wall or any wall

that will not contain doors or windows. The spacing for almost all traditional

walls requires a 3/8” (10 mm) mortar joint. If Surface Bonding Cement is used

in a structural application, consult local building codes. Air, Mix and substrate

temperatures should be a minimum of 40°F (4°C) and remain above freezing for

24 hours.

1. When laying a new block wall first construct a sound footing below the

frost line.

2. Level the first course of block in a full bed of mortar.

3. Stack the remaining courses of block without mortar from corners in a

running bond pattern.

4. Butt the blocks together.

5. Use galvanized brick ties as shims when necessary for leveling while

stacking.

6. Fill gaps larger than 1/4” (6 mm) with Sakrete Surface Bonding Cement

prior to coating the wall.

7. Dampen surface before applying Surface Bonding Cement.

8. Apply material a minimum of 1/8” (3.2 mm) to 1/2” (13 mm) thick.

9. For dry stack applications, material MUST BE APPLIED TO BOTH SIDES OF

THE BLOCK WALL.

Scratch/Brown/Stucco:

1. Application over masonry must follow ASTM C 926 Standard Specification

for Application of Portland Cement Based Plaster.

2. Applications over lath must follow ASTM C 1063 Standard Specification for

Installation of Lathing and Furring to receive interior and exterior portland

cement based plaster.

3. Apply material using a trowel using enough pressure to compact the

material.

4. Texture stucco to match the surrounding area using a plasterer’s trowel or

finish to desired texture.

NOTE: Check with local building code requirements for proper installation

guidelines.

Sakrete Surface Bonding Cement is

a fiber reinforced portland cement

based coating for concrete block

and masonry walls. It can be used

to build block walls without mortar

joints as well as to decorate and

damp proof existing block walls.

Features:

• High Strength >5000 psi

• Decorative Water Resistant Concrete & Masonry Coating

• Fiber reinforced to reduce shrinkage cracking

• Labor saving compared to conventional masonry construction

• Paintable

Use For:

• Building dry stack block walls without mortar

• Damp proof coating for basement and foundation walls

• Masonry parge or finish coating

• Interior or exterior

• Scratch and brown coat

Yield/Water/Coverage:

To determine coverage: Multiply Length (feet) x Width (feet) x Thickness (inches)

and divide by 12. Then divide by the yield in the chart above to determine the

numbers of bags needed. See Calculator on Sakrete.com for additional

assistance. Yield and water are approximate.

Technical Data:

Compressive Strength ASTM C 109

28 days = 5,000 psi (34.5 MPa)

COLOR:

Gray

Preparation/Application:

For best results all materials should be stored between 40°F (4°C) and 90°F

(32°C) 24 hours prior to installation.

Refer to:

- International Masonry Industry All-Weather Council (IMIAC)

- Recommended Practices and Guild Specifications for Cold Weather

Masonry Construction

- Recommended Practices and Guide Specifications for Hot Weather

Masonry Construction

Bag Size Yield/Coverage Water

50 lb (22.6 kg) Covers 35 - 40 ft

(3.25 – 3.7 m

) at

1/8” (3.2 mm) thick

5.0 to 6.0 qts

(4.7 - 5.7 L)

Summary of content (2 pages)

PAGE 1
Surface Bonding Cement The Pro’s Choice Since 1936 Sakrete Surface Bonding Cement is a fiber reinforced portland cement based coating for concrete block and masonry walls. It can be used to build block walls without mortar joints as well as to decorate and damp proof existing block walls.
PAGE 2
Surface Bonding Cement The Pro’s Choice Since 1936 Mixing: 1. Empty contents into a mortar box, wheelbarrow or mechanical mixer 2. Add clean potable water (see table above for water amounts) enough to achieve a workable mix. A SOUPY MIX MUST BE AVOIDED. 3. The easiest means of mixing is with a 1/2” (13 mm) drill and a mixing paddle. Add most of the water to a 5 gal (19 L) pail. 4. Mix for 2 minutes. Add additional water as needed and remix. 5. Can be colored by adding Sakrete Cement Color while mixing.