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Protexior® 793

Protexior 793 Epoxy Mortar

Mixing Procedure
A high solids low viscosity 100% solids epoxy formulated for deep penetration into properly prepared concrete surfaces to seal and damp-proof. It is also used as a bonding primer for other primers and finish coatings that will be applied over masonry surfaces.
SKU
P-793
Features
• Non-shrinking, tough and durable coating
• Low viscosity, provides deep penetration into properly prepared concrete
• Excellent resistance to strong chemicals
• Excellent abrasion and impact resistance
• 100% solids – No VOC Content
Common Uses
• Seal masonry surfaces against water and chloride penetration.
• A bonding primer for additional coats of primer and finish coats
• Use as a sealer for concrete surfaces
• Low permeability
• Seal spalled concrete
• Application to damp surfaces

Specification Data

Components
2
Curing Requirements
A surface coated with Protexior 793 will be tack free in 4-6 hours at 75°F (23.9°C).

Application Instructions

Surface Preparation
All masonry surfaces must be clean, sound and free of contaminants that will reduce the penetration of Protexior 793 Sealer/Primer. Bond failure can be expected if surface preparation is in adequate. All masonry surfaces but must be free of all wax, grease, oils, fats, soil, loose or foreign matter, and laitance. Remove all unsound and deteriorated concrete by scarifying or abrasive blasting.

New and aged concrete
Concrete must be cured a minimum of 28 days prior to coating. Remove all sealers, curing compounds and form release agents by mechanical methods.
Remove oil, grease, dirt and loose materials by using warm water and a heavy duty detergent and a scrub brush or steam cleaning with a detergent followed by a power wash all clean surfaces using clean fresh water. Remove laitance, curing compounds and form release agents, efflorescence, etc. by abrading surfaces. After cleaning all surfaces must show open pores throughout and have a sand paper texture after cleaning. All indoor/outdoor on grade substrates must be tested for the presence of excess moisture before application of Protexior 793 by following using the plastic sheet method described in ASTM D 4263. If excess moisture is present allow additional drying time.
Mixing
Proper Mixing Procedure for 3 Gallon Kit of Protexior 793 Epoxy Mortar
2 Parts (A) to 1 Part (B) Epoxy


1. Open and mix the contents of the Part A (base) with an explosion proof or air driven heavy-duty drill mixer. Mixing should be performed until the liquid material is free of any lumps and demonstrates a smooth uniform consistency. Care should be taken to ensure that the bottom of the container does not contain any components of the coating that may have settled since the manufacture of the product.

2. Open and mix the contents of the Part B (activator) with an explosion proof or air driven heavy duty drill mixer. Mixing should be performed until the liquid material is free of any lumps and demonstrates a smooth uniform consistency. Care should be taken to ensure that the bottom of the container does not contain any of the coating constituents that may have settled since the manufacture of the product.

3. The entire contents of both part A and part B containers should be added to a clean 5 gallon mixing container, all cans should be wiped out clean with a brush to ensure all of the coating materials are removed from their original cans and added to the 5 gallon mixing container. Power mix the combined part A and part B with an explosion proof or air driven heavy-duty drill mixer until a consistent homogeneous color and consistency is achieved. No color streaking should be visible. Mixing should be performed for several minutes to ensure proper blending of components. The three gallons of mixed liquid components should be split equally into an additional clean 5 gallon mixing container, ending up with 1.5 gallons in each 5 gallon container.

4. Add 1.5 gallons of fumed silica (TS-720) to each 5-gallon container and carefully mix and/or fold the fumed silica into the liquid materials. Care should be taken during mixing to mix at a slow speed to avoid making the fumed silica air borne. Mix the combined materials to a smooth, lump free consistency with an explosion proof or air driven heavy-duty drill mixer. Respirator use during mixing of the fumed silica is recommended to protect against any air borne particulates.

5. Slowly add three gallons of clean, dry play sand abrasive to each 5-gallon container and carefully mix with an explosion proof or air driven heavy-duty drill mixer. Mix the abrasive into the combined materials to a smooth, lump free consistency. Using a dry-wall mud paddle may incorporate the abrasive into the thickened liquid components more efficiently than using a standard Jiffy mixing blade.

6. Adding three gallons of fumed silica and six gallons of abrasive to the mortar mixture will yield approximately 6.75 gallons of mixed material between both containers.
Clean Up
Immediately after application, clean tools, equipment and surfaces contaminated by coating residues with hot soapy water. Then flush contaminated surfaces with hot water. Solvent cleaning is not generally recommended because of safety hazards and special precautions.
ORDER INFORMATION
  To place orders and/or obtain pricing information contact:

Dampney Company
85 Paris Street
Everett, MA 02149
TEL: (617) 389-2805
Request More Information
 
 

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