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Application Guide

Before you begin:

✅Weather is dry (no rain forecast for the next 2 hours)

✅Asphalt pavement is dry and swept or blown clean of loose debris (broom, leaf blower, etc.) and in good condition

✅Temperature is above 50°F (10°C)

✅PPE is available (gloves, safety glasses, high-visibility gear, close-toed shoes)

✅RePlay product is shaken or mixed thoroughly before application

  • 15 minutes for 275-gallon totes
  • 7-8 minutes for 55-gallon drums
  • 1-2 minutes for 5-gallon pails and 1-gallon jugs
  • 30 seconds for 1-quart bottles

✅RePlay application rate is set at 1 gallon per 600 sq ft or up to 1 gallon per 450 sq ft

✅Supporting Products: BST Cleaner and MG Degreaser (with clean water)

✅Traffic control plan in place (cones, flaggers, signage as needed) and caution is practiced around vehicles and pedestrians

Method 1: Backpack or Handpump Sprayer

What You Need:

  • A clean backpack or handpump sprayer with a fan-tip or cone-tip nozzle
  • RePlay product, measured appropriately for the project

Steps:

  1. Site Prep: Sweep or blow off all loose debris from existing asphalt. Blot the surface using a towel to make sure the surface is dry.
  2. Pavement Temperature: Use a temperature gun to gauge the surface and make sure it is above 50°F
  3. Fill sprayer: Mix RePlay thoroughly in the product container. Pour the mixed RePlay into the backpack or handpump sprayer tank. Prime the spray applicator as recommended by the manufacturer. 
  4. Spray Application: Walk at a steady pace, spraying side to side in smooth, even passes.
  5. Overlap: Slightly overlap the spray pattern to avoid streaking or missed sections. 
  6. Watch for puddling: Use a broom or roller to spread out excess product if needed. Do this immediately, since RePlay will begin penetrating and bonding immediately. 
  7. Return any unused product back to the manufacturer's container and seal tightly. 

💡 Use backpack or pump sprayer for tight spaces like curbs, corners, cul-de-sacs, seams and joints, or test strips. BioSpan's vehicle-mounted Spray System also includes a spray wand and hose to reach irregular areas.

Method 2: Spray System (Flatbed Truck or Compact Unit)

What You Need:

  • A clean BioSpan Spray System (flatbed or compact units), calibrated appropriately
  • RePlay bulk product in 275-gallon totes (for the flatbed system) or 80-100 gallons (for the compact system)

Steps:

  1. Site Prep: Sweep or blow off all loose debris from existing asphalt surfaces. Blot the surface using a towel to make sure the surface is dry.
  2. Pavement Temperature: Use a temperature gun to gauge the surface and make sure it is above 50°F
  3. Prepare the spray system: Ensure the system pump, hoses, and spray bars are clean and functioning. Make sure fittings and clamps are tight and sealed. Check that all appropriate valves are open/closed before running the system.
  4. Prep RePlay: Mix RePlay thoroughly (for 15 minutes within the tote or tank) before use. 
  5. Calibrate flow rate: Target rate is between 1 gal per 600 sq ft (0.015 gallons per sq yd), or up to 1 gallon per 450 sq ft (0.02 gallons per sq yd). Adjust vehicle speed and pressure accordingly. May slowly close the product return / recirculation valve to adjust pressure.
  6. Application: Switch on the appropriate spray booms from the cab control system. Once the vehicle is in motion, switch on the Master control to start spraying. 
  7. Avoid stopping mid-pass to prevent streaking or over-application.
  8. Post-Application: Once the spray line has been switched off and the vehicle is parked, close off the valve to the RePlay product container and make sure the top is sealed tightly for storage.

💡 Use a cone truck or follow vehicle with arrow board for safety on roads or in lots.

Cleanup & Aftercare

  • Flush all spray equipment clean of RePlay residue. 
  • Flush BST Cleaner through the spray system to clear nozzles, hoses, pumps, and tanks. 
  • After BST, flush the spray equipment using a more concentrated MG Degreaser solution by diluting with less water (within the recommended range).
  • Clean tools and equipment immediately after use. May use BST Cleaner or diluted MG Degreaser for exterior sprayer surface cleaning
  • Avoid rain or irrigation for at least 2 hours after RePlay cure. 
  • RePlay Cure: Wait 30 minutes to 1 hour before foot traffic, 1 to 3 hours before regular vehicle traffic. 

Need Help?

📞 Contact BioSpan support or scan your QR code on the label for how-to videos and tech support.

🌐 Visit biospantech.com for specs, SDS, and more.