Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Excellent flexural, tensile and compressive strengths for durable repairs
- Forms chemical and mechanical bond to sound surfaces; does not require special bonding agent
- Polymer modified for resistance to deicing chemicals, salts, fertilizers, acids or alkalis
- Excellent abrasion and impact resistance
- Dense surface texture for improved freeze/thaw resistance
- Featheredge to 1” (25 mm) depth in one lift; may be placed in layers for full depth repairs
Applications & Uses
- Markets
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Uses
- Interior or exterior repair of horizontal, vertical and overhead concrete and masonry surfaces
- Filling voids and honeycombs in foundation work and walls
- Repairing spalls, cracks or chips in floors, driveways, sidewalks, steps, etc.
- Leveling low spots, “birdbaths”, in concrete slabs
- Directions
Surface Preparation: Proper surface preparation is critical to successful thin repairs. Area to be repaired must be free of all dirt, dust, loose concrete, oil, grease, old asphalt, curing and sealing compounds, form release agents, efflorescence, or other contaminants which might interfere with adequate bond. Where possible, square cut perimeter of repair to a depth of 1/8 inch (3 mm). Saturate the prepared area with clean, potable water to the point of rejection. Remove any puddles or standing water immediately before placing mortar so that concrete is in a Saturated Surface Dry (SSD) condition.
Mixing: Mix only an amount that can be placed and finished within 30 minutes. Condition the dry mortar and clean potable mix water to 60° to 75°F (18° to 24°C). Pour 3.0 to 3.5 quarts ( 2.8 to 3.3L) of clean, potable water per bag into a clean mixer or pail, then add ChemMasters Thin Patch and mix 2 to 3 minutes to achieve a lump free consistency. Do not over mix. Do not add additional water or re-temper after initial mixing procedure. Do not add accelerating or bonding admixtures. When mixing one bag use a variable speed drill with a jiffler paddle. For less than full bag requirements, use a drill with a jiffler paddle to mix a proportionate amount of the dry ChemMasters Thin Patch powder and mix water.
Application: Scrub a mortar bond coat into the repair area being sure to fill all voids and pores. Do not allow bond coat to dry before placement of mortar. Use a small trowel or margin trowel to compact mortar firmly into repair area fill-ing all voids and air pockets. Smooth surface area with float or trowel and apply broom finish if desired. Do not trowel surface excessively. Blisters can be raised by overworking the surface.
Repairs Over 1 inch (25 mm): Apply a 1 inch layer of ChemMasters Thin Patch mortar, compacting well as stated above. Do not smooth surface. Apply a medium broom finish to the first lift in order to provide a mechanical bond between each layer or lift. Allow initial placement of mortar to harden slightly for approximately 45 minutes to 1 hour. Apply next layer of ChemMasters Thin Patch. Con-tinue building up layers as described until void is level with surrounding surface. Smooth surface and apply broom fin-ish if required.Sealing: For best results, ChemMasters Thin Patch must be sealed immediately. Use a water based curing and seal-ing compound such as Polyseal WB or Safe-Cure & Seal 309.
Extreme Temperature Application:
Temperatures above 80°F (26.7°C):
Cool the substrate with cool clean potable water. Prior to mixing keep material in cool, dry area, and use cold water for mixing. Temperatures below 50°F (10°C): Keep material warm and use lukewarm water to speed set time.
Technical Details & Test Data
- Limitations
- Do not apply to frozen or frosted surfaces.
- Do not apply if ambient or substrate temperatures are below 40°F (4°C).
- Do not exceed maximum recommended water content.
- Do not use solvent based curing compounds.
- Do not add sand or gravel to extend.
- ChemMasters Thin Patch is not intended for use as a thin overlay material over large surfaces subject to wheeled or heavy industrial traffic.
- Technical Data
Yield per 50 lb (22.7 kg) bag A 50 lb (22.7 kg) bag yields 0.43 ft3 0.012 m3 @ 0.25” (0.65 cm) 20.6 ft2 1.91 m2 @ 0.50 “ (1.25 cm) 10.3 ft2 0.96 m2 Compressive Strength ASTM C109
psi/MPa @ X days1 day 3 day 7 day 28 day psi 1800 2500 3400 6000 MPa 12.41 17.24 23.44 41.37 Set Times Initial Set 30 to 60 minutes
Final Set 1 to 2 hours
Packaging & Availability
- Packaging Type
- Packaging
Packaging Product Number 50 lb (22.7 kg) bags 60 bags pallet F2034.50
Storage & Handling
- Storage
Store between 40°F (4°C) and 90°F (32°C) in unopened bags on pallets in a dry area. Shelf life of properly stored material is one year from date of manufacture.