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Type S Mortar Mix Promasonry

ProMasonry Type S Mortar

ProMasonry Type S Mortar is a blend of masonry cement and sand, designed for professional use. All ProMasonry products are processed through precision blending equipment to ensure a consistent product of superior quality.

SUGGESTED USES: For laying brick, block and stone, or pointing, plastering and stuccoing.

PREPARATION: Remove all loose and/or deteriorated material as well as any surface contaminants such as oil, paint, grease, etc.

MIXING: Empty the contents of the bag into a clean wheelbarrow, mortar box, mechanical mixer or other mixing vessel. Form a crater with a shovel or hoe in the center of the dry mix. Pour the recommended 5.4 quarts (5.1 L) of clean potable water into the crater. For hand mixing Blend dry mix with a shovel or hoe from the outer edges working the material towards the center. Continue mixing until all free water is used and all the aggregate is uniformly coated with cement. For mechanical mixing Mix the material for three minutes.
Caution: An excessive amount of water will weaken the mix and can result in cracking. Add small quantities, 1 pint (0.5 L) or less, of water and thoroughly mix to reduce stiffness.

APPLICATION TIPS: Be sure to provide a proper footing. Lay masonry per industry and local standards.

FINISHING: Joints can be finished when material has begun to set and the surface has a thumbprint hard consistency. Mortar joints can be finished with a jointing tool.

CURING: Protect from direct sunlight, wind, rain and frost during the curing period.

CLEAN UP: Clean tools and equipment with water immediately after use. Cured material will need to be mechanically removed.



Physical state and appearance: Dry powder with aggregate

Base: Masonry cement

pH: Wet mix >12

Aggregate type: Mortar sand

Flow Test: ASTM C109 : 108%

Compressive strengths – psi: ASTM C387 7 Days : 1,680 (11.6 MPa) 28 Days : 2,210 (15.2 MPa)

Yield: One 80 lb (36.3 kg) bag will lay up to 65 standard bricks and 26 standard blocks.
Caution: May cause eye and skin irritation.

Health and Safety: Product is alkaline. Do not ingest. Avoid breathing dust. Avoid contact with skin and eyes. Refer to Material Safety Data Sheet (MSDS) for additional information. Keep out of reach of children.

First Aid: In case of skin contact, wash thoroughly with soap and water. For eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional. For respiratory problems remove person to fresh air.

Disposal: Dispose of material in accordance with local, state or federal regulations.

Interested in this product? Please reach out to us to learn about availability and delivery options if needed.