What type of mortar is used for scratch coat?
Type S mortar
PRODUCT USE QUIKRETE® Veneer Stone Mortar can be used as a bond coat, scratch and brown coat and as a mortar joint grout over concrete and masonry surfaces or galvanized, expanded metal lath. The standard formulation meets the property requirements of ASTM C270 and C1714 as Type S mortar.
What kind of mortar do you use for Cultured stone?
Stone Veneer Mortar is a high performance, polymer modified mortar designed to set and grout artificial stone and natural stone veneers. Can be used over nearly any solid wall including masonry units, poured concrete or plywood.
How much mortar do I need to make a scratch coat?
Mixing the Scratch Coat: 1 part Type S Masonry Cement to 2.5 parts sand.
How deep should a scratch coat be?
3/8″
The scratch coat should be 3/8″ thick. Force it through the wire mesh so that it fills the ¼” gap between the mesh and wall completely. 3. Smooth the scratch coat with the trowel.
How thick should scratch coat be?
The normal thickness is between 3 and 5 mm. On soft or weak background use 1:2 or 2:5. Successive coats must be weaker than this coat. The thickness of the first coat depends on the nature of the background and the overall thickness required of the render.
What is the difference between Type M and Type S mortar mix?
Type S mortar is used in structural load-bearing applications and for exterior applications at or below grade. It also provides increased resistance to freeze-thaw deterioration. Type M is a high-strength mortar that may be considered for load bearing or demanding freeze-thaw applications.
How many 12 blocks are in a bag of mortar?
The typical 80-pound bag of mortar will yield 12 blocks so you can calculate by dividing the square footage by 12.
Can stucco be applied in one coat?
Stucco provides a durable, low maintenance finish that adds lots of character to a house. It can be applied with either one coat or three coat process, but there is some confusion about the methods.
How long do you let scratch coat dry?
Let the scratch coat dry before going on to the next step. Drying time will depend on temperature, humidity and airflow, and could take anywhere from 2 to 24 hours. You’ll know its dry when it turns a light gray color.