Applications For TechCrete 2500
Typical Applications
Rooftops & Podium Decks
Facades
Wharf Decks & Marine Structures
Tiled shower recesses
Precast elements & panels
Parking Decks
Wharf Decks
Water Tanks
Specialty Applications
Airport Runways, Taxiways, Aprons
Basic Requirements
Prior to the application of the TechCrete 2500 Waterproofing Agent, the surface must be clean, dry and dust-free that is at least 28-days old. If the surface is not clean, then the use of one of the following Alchemco Clean & Repair (ACR) products, or a shot blast system, is required for prepping the surface for warrantied applications. Chemical cleaning may require multiple applications and the use of different products to achieve complete cleaning. Certain types of cleaning equipment may improve performance and speed of application when applying chemical cleaners, contact the Technical Department for a list of approved equipment and cleaning methods.
• ACR Concrete & Masonry Cleaner • ACR Emulsifying Cleaner
• ACR Concrete & Masonry Etch • ACR Paint & Stain Remover
• ACR Rust Converter & Inhibitor
Contact the Technical Department for help and directions for which cleaning product will provide the best result for a clean surface.
Where segregation or voids are apparent, chip out and treat with ACR Concrete Patch & Repair. Once repaired, allow at least 24 hours for patches to dry and cure. If works needs to be completed faster, then use ACR HP Concrete Repair.
Do not apply where ambient temperatures are below +39°F (+4°C) or above +95°F (+35°C). Do not apply within 24 hours of the surface being wet.
Application Rates
Normal: 1 gallon per 200 square feet (1 liter to 5 square meters) on average. Coverage rate may vary depending on the substrate absorption, which can vary depending on the age of concrete and original density.
Application Method
1. No less than 28 days after the placement of the concrete and once the surface has been prepared for the application, begin.
2. Using a pump style sprayer, either manual, backpack, or barrel style, fill the sprayer with TechCrete Waterproofing Agent. Apply pressure to the sprayer and using a fan style tip, being applying the waterproofing agent to the entire surface of the concrete.
3. First apply product to all cracks by spray floord coating the crack with an application that covers the crack and at least 2” ( 50 mm) to either side of the crack.
4. Once all cracks have been trated then apply liberally to the entire surface area, but without puddling. Apply in even strokes wiht a small amount of overlap to ensure proper coverage.
5. Once the waterproofing agent has been spray-applied and is dry to the touch (no more than 6 hours) then begin the first watering. Water shall be applied at no less than 1 gallon (1 liter) and no more than 2 gallons (2 liters) per each 100 square feet (10 m2) of work area.
6. No less than 6 hours after the application of waterproofing agent has occured, then spray-apply TechCrete Crack & Void Treatment to all cracks and TechCrete Acclerating Agent to the field of the project.
7. Once dry to the touch, being second watering. Watering should be done in the same manner as the first watering.
