Westcoat TC-73 Epoxy Mortar Sand | 50 lb Bag
About
Trowel-Grade Sand for High-Build Epoxy Mortar Floors and Cove
Westcoat TC-73 Epoxy Mortar Sand is the aggregate that turns 100% solids epoxy into a trowelable mortar. Mixed at 1½ gallons of EC-36 100% Solids Epoxy per 100 pounds of sand, it forms the high-strength, impact-resistant mortar base in the Westcoat Epoxy Mortar Standard System. The same ratio with EC-76 Cove Gel makes the aggregate coat for troweled epoxy cove at the wall.
The sand is sub-angular, meaning its grains are angular with slightly rounded edges, and it's graded specifically for troweled resinous flooring. On the floor, the mortar base is troweled into the primer at 3/16 to ¼ inch, then sealed and topcoated with EC-34 Pigmented Epoxy Topcoat. The Epoxy Mortar Standard System is used in manufacturing plants, warehouses, commercial kitchens, and service areas with forklift traffic.
Specs
Why Choose Westcoat TC-73?
- Easy-to-trowel, trowel-grade sand
- Made for troweled resinous flooring
- Builds high-strength, impact-resistant epoxy mortar
- Cost-effective way to add high build
- Works for both floor mortar and cove
Westcoat Systems Using TC-73 Epoxy Mortar Sand
TC-73 is the sand that's mixed with epoxy to make Westcoat's troweled mortar, both for the floor's mortar base and for cove at the wall. The Epoxy Cove System is also used with Westcoat's Dubro and Temper-Crete floors for a seamless, sanitary floor-to-wall transition.
Epoxy Floor Coating Systems
- Epoxy Mortar Standard | Mortar Base, mixed with EC-36 100% Solids Epoxy and troweled into the wet EC-12 Clear primer
Cove Systems
- Epoxy Cove System | Aggregate Coat, mixed with EC-76 Cove Gel and troweled up the wall over the tack coat
Product Specifications for Westcoat TC-73
SPECIFICATION DETAILS Product Type Sub-Angular, Trowel-Grade Aggregate Color Tan Packaging 50 lb Bag Mix Ratio 1½ Gallons EC-36 or EC-76 per 100 lb TC-73 Gradation Mostly 40–60 Mesh (0.420–0.250 mm) Floor Coverage @ ¼" 45–50 Sq Ft per Mix* Floor Coverage @ 3/16" 60–65 Sq Ft per Mix* Cove Yield Approximately 120 Linear Ft of 6" Cove per Mix** Shelf Life Indefinite in Unopened Packaging
*One mix is 1½ gallons of EC-36 and 100 lb of TC-73. Coverage varies depending on surface profile, application technique, and installed thickness.
**One mix is a 1½-gallon kit of EC-76 and 100 lb of TC-73. Yield is based on a 6" cove and varies with cove height, profile, and application technique.
How-To
Application Instruction Overview for Westcoat TC-73
IMPORTANT! Before You Begin: Review the complete Westcoat TC-73 Technical Data Sheet (TDS) and Safety Data Sheet (SDS), linked above, along with the Epoxy Mortar Standard or Epoxy Cove System specification, before installation. The information below is a brief overview and does not replace the manufacturer's complete application instructions.
Step 1 – Prepare and Prime the Surface
- Prepare, patch, and prime the surface as specified in the system specification
- Trowel the floor mortar into the wet EC-12 Clear primer so it doesn't slide on the surface
- If you can't trowel into wet primer, broadcast sand into the EC-12 Clear and let it dry before applying the mortar
Step 2 – Mix the Mortar
- Mix 2 parts A with 1 part B (by volume) of EC-36 or EC-76 for 3–4 minutes before adding sand
- Combine 1½ gallons of mixed EC-36 or EC-76 with 100 pounds of TC-73
- For smaller cove batches, blend 48 ounces of mixed EC-76 with approximately 25 pounds of TC-73
- Mix with a mechanical mixer until all of the sand is completely and evenly coated
- With EC-76, only prepare what you can use in 20 minutes at 70°F
Step 3 – Apply the Mortar
- Floors: Trowel into place at 45–50 sq ft per mix at ¼ inch or 60–65 sq ft per mix at 3/16 inch
- Lubricate the trowel with a solvent-dampened rag as needed to keep tools clean
- Cove: Apply the EC-76 mortar over the wet EC-76 tack coat, troweling onto the wall and stopping at the cove cap
- Smooth and finish the cove with a cove trowel, using water or solvent to lubricate the trowel
- Let the cove aggregate coat dry overnight, then apply the EC-76 fill coat before topcoating
Installation Limitations
- Designed for professional use only
- Epoxy Mortar Standard System is for interior use only
- Do not apply the Epoxy Mortar Standard System below 50°F or above 95°F
- Do not apply EC-76 below 50°F or above 90°F
- Have the customer approve a sample before starting the application
- Do not allow Westcoat products to freeze
Full instructions
See More
FAQ
Frequently Asked Questions About Westcoat TC-73 Epoxy Mortar Sand
What do I mix TC-73 with?
Mix it with EC-36 100% Solids Epoxy for epoxy mortar floors or EC-76 Cove Gel for cove base, at 1½ gallons of mixed epoxy per 100 pounds of sand.
How much floor does TC-73 cover?
Each mix of 1½ gallons of EC-36 and 100 pounds (two bags) of TC-73 covers 45–50 square feet at ¼ inch or 60–65 square feet at 3/16 inch.
How many bags of TC-73 do I need for a 3-gallon kit of EC-36?
At 1½ gallons per 100 pounds, a 3-gallon EC-36 kit mixes with about 200 pounds of TC-73, or four 50 lb bags.
How much cove does a batch of TC-73 make?
A 1½-gallon kit of EC-76 Cove Gel mixed with 100 pounds of TC-73 makes approximately 120 linear feet of 6" cove. Taller cove or a different profile will change that number.
Can I use a different sand for epoxy cove?
EC-76 Cove Gel can also be used with TC-65 Quartz Sand or silica sand. If you use 20–30 grit silica sand, the resin has to be increased to about 75 pounds of sand per 1½-gallon kit of EC-76.
Is TC-73 the same as TC-65 Quartz Sand?
No. TC-65 is the quartz sand used in Westcoat's Epoxy Mortar Quartz System, which finishes with a clear topcoat. TC-73 is a tan, sub-angular mortar sand used in the Epoxy Mortar Standard System, which is sealed and topcoated with EC-34 Pigmented Epoxy Topcoat.
About
Trowel-Grade Sand for High-Build Epoxy Mortar Floors and Cove
Westcoat TC-73 Epoxy Mortar Sand is the aggregate that turns 100% solids epoxy into a trowelable mortar. Mixed at 1½ gallons of EC-36 100% Solids Epoxy per 100 pounds of sand, it forms the high-strength, impact-resistant mortar base in the Westcoat Epoxy Mortar Standard System. The same ratio with EC-76 Cove Gel makes the aggregate coat for troweled epoxy cove at the wall.
The sand is sub-angular, meaning its grains are angular with slightly rounded edges, and it's graded specifically for troweled resinous flooring. On the floor, the mortar base is troweled into the primer at 3/16 to ¼ inch, then sealed and topcoated with EC-34 Pigmented Epoxy Topcoat. The Epoxy Mortar Standard System is used in manufacturing plants, warehouses, commercial kitchens, and service areas with forklift traffic.
Specs
Why Choose Westcoat TC-73?
- Easy-to-trowel, trowel-grade sand
- Made for troweled resinous flooring
- Builds high-strength, impact-resistant epoxy mortar
- Cost-effective way to add high build
- Works for both floor mortar and cove
Westcoat Systems Using TC-73 Epoxy Mortar Sand
TC-73 is the sand that's mixed with epoxy to make Westcoat's troweled mortar, both for the floor's mortar base and for cove at the wall. The Epoxy Cove System is also used with Westcoat's Dubro and Temper-Crete floors for a seamless, sanitary floor-to-wall transition.
Epoxy Floor Coating Systems
- Epoxy Mortar Standard | Mortar Base, mixed with EC-36 100% Solids Epoxy and troweled into the wet EC-12 Clear primer
Cove Systems
- Epoxy Cove System | Aggregate Coat, mixed with EC-76 Cove Gel and troweled up the wall over the tack coat
Product Specifications for Westcoat TC-73
| SPECIFICATION | DETAILS |
|---|---|
| Product Type | Sub-Angular, Trowel-Grade Aggregate |
| Color | Tan |
| Packaging | 50 lb Bag |
| Mix Ratio | 1½ Gallons EC-36 or EC-76 per 100 lb TC-73 |
| Gradation | Mostly 40–60 Mesh (0.420–0.250 mm) |
| Floor Coverage @ ¼" | 45–50 Sq Ft per Mix* |
| Floor Coverage @ 3/16" | 60–65 Sq Ft per Mix* |
| Cove Yield | Approximately 120 Linear Ft of 6" Cove per Mix** |
| Shelf Life | Indefinite in Unopened Packaging |
*One mix is 1½ gallons of EC-36 and 100 lb of TC-73. Coverage varies depending on surface profile, application technique, and installed thickness.
**One mix is a 1½-gallon kit of EC-76 and 100 lb of TC-73. Yield is based on a 6" cove and varies with cove height, profile, and application technique.
How-To
Application Instruction Overview for Westcoat TC-73
IMPORTANT! Before You Begin: Review the complete Westcoat TC-73 Technical Data Sheet (TDS) and Safety Data Sheet (SDS), linked above, along with the Epoxy Mortar Standard or Epoxy Cove System specification, before installation. The information below is a brief overview and does not replace the manufacturer's complete application instructions.
Step 1 – Prepare and Prime the Surface
- Prepare, patch, and prime the surface as specified in the system specification
- Trowel the floor mortar into the wet EC-12 Clear primer so it doesn't slide on the surface
- If you can't trowel into wet primer, broadcast sand into the EC-12 Clear and let it dry before applying the mortar
Step 2 – Mix the Mortar
- Mix 2 parts A with 1 part B (by volume) of EC-36 or EC-76 for 3–4 minutes before adding sand
- Combine 1½ gallons of mixed EC-36 or EC-76 with 100 pounds of TC-73
- For smaller cove batches, blend 48 ounces of mixed EC-76 with approximately 25 pounds of TC-73
- Mix with a mechanical mixer until all of the sand is completely and evenly coated
- With EC-76, only prepare what you can use in 20 minutes at 70°F
Step 3 – Apply the Mortar
- Floors: Trowel into place at 45–50 sq ft per mix at ¼ inch or 60–65 sq ft per mix at 3/16 inch
- Lubricate the trowel with a solvent-dampened rag as needed to keep tools clean
- Cove: Apply the EC-76 mortar over the wet EC-76 tack coat, troweling onto the wall and stopping at the cove cap
- Smooth and finish the cove with a cove trowel, using water or solvent to lubricate the trowel
- Let the cove aggregate coat dry overnight, then apply the EC-76 fill coat before topcoating
Installation Limitations
- Designed for professional use only
- Epoxy Mortar Standard System is for interior use only
- Do not apply the Epoxy Mortar Standard System below 50°F or above 95°F
- Do not apply EC-76 below 50°F or above 90°F
- Have the customer approve a sample before starting the application
- Do not allow Westcoat products to freeze
FAQ
Frequently Asked Questions About Westcoat TC-73 Epoxy Mortar Sand
What do I mix TC-73 with?
Mix it with EC-36 100% Solids Epoxy for epoxy mortar floors or EC-76 Cove Gel for cove base, at 1½ gallons of mixed epoxy per 100 pounds of sand.
How much floor does TC-73 cover?
Each mix of 1½ gallons of EC-36 and 100 pounds (two bags) of TC-73 covers 45–50 square feet at ¼ inch or 60–65 square feet at 3/16 inch.
How many bags of TC-73 do I need for a 3-gallon kit of EC-36?
At 1½ gallons per 100 pounds, a 3-gallon EC-36 kit mixes with about 200 pounds of TC-73, or four 50 lb bags.
How much cove does a batch of TC-73 make?
A 1½-gallon kit of EC-76 Cove Gel mixed with 100 pounds of TC-73 makes approximately 120 linear feet of 6" cove. Taller cove or a different profile will change that number.
Can I use a different sand for epoxy cove?
EC-76 Cove Gel can also be used with TC-65 Quartz Sand or silica sand. If you use 20–30 grit silica sand, the resin has to be increased to about 75 pounds of sand per 1½-gallon kit of EC-76.
Is TC-73 the same as TC-65 Quartz Sand?
No. TC-65 is the quartz sand used in Westcoat's Epoxy Mortar Quartz System, which finishes with a clear topcoat. TC-73 is a tan, sub-angular mortar sand used in the Epoxy Mortar Standard System, which is sealed and topcoated with EC-34 Pigmented Epoxy Topcoat.
