PU Flex Sample Trays (Dimensions: 10 x 7 cm)

The substrate must be level, load-bearing, dry, sufficiently resistant to tensile and compressive forces, and clean. Dust, oil, grease and release agents must be removed in advance using suitable measures. Application takes place at 10-30 °C (room and substrate temperature) and a maximum air humidity of 70 %.

1. For mixing, add the entire contents of EP Primer component B to the container of EP Primer component A and mix slowly and thoroughly for approx. 3 minutes at 300-400 rpm using a drill. 
   Working Time: approx. 40 minutes at 20 °C․
2. Immediately after mixing, pour the material onto the floor, spread with a rubber squeegee and then finish with a roller to achieve an even surface and preserve the floor structure.
3. During curing, protect the surface from moisture, dust and mechanical stress. Walkable after approx. 14 hours, fully load-bearing after approx. 7 days (temperature-dependent).
4. Further coating with other products may be applied at 20 °C no earlier than 14 hours and must be applied no later than 36 hours after application of the EP Primer. 
   Important: If further coating is not applied within 36 hours, the EP Primer must be broadcast with quartz sand while still fresh/liquid (recommended quantity: approx. 300 g/m²). Before further coating, remove loose excess quartz sand with a broom.
   Note: Always use PU Flex as a primer when working on mastic asphalt.

1. For mixing, add the entire contents of PU Flex component B to the container of PU Flex component A. Then add 9 kg of quartz sand to the mixture and mix slowly and thoroughly for approx. 3 minutes at 300-400 rpm using a drill. 
   Working Time: approx. 25 minutes at 20 °C․
2. Immediately after mixing, pour the mixture onto the floor, spread evenly with a surface squeegee and then deaerate with a spiked roller to achieve an even surface and a smooth finish.
3. During curing, protect the surface from moisture, dust and mechanical stress. Walkable after approx. 16 hours, fully load-bearing after approx. 7 days (temperature-dependent).
4. Further coating with PU Flex may be applied at 20 °C no earlier than 16 hours and must be applied no later than 36 hours after application of the PU Flex and quartz sand. 
   Important: If further coating is not applied within 36 hours, the PU Flex and quartz sand must be broadcast with additional quartz sand while still fresh/liquid (recommended quantity: approx. 300 g/m²). Before further coating, remove loose excess quartz sand with a broom.

1. For mixing, add the entire contents of PU Flex component B to the container of PU Flex component A. Then add 2 × 100 g of EP colour paste and mix slowly and thoroughly for approx. 3 minutes at 300-400 rpm using a drill. 
   Working Time: approx. 25 minutes at 20 °C․
2. Immediately after mixing, pour the mixture onto the floor, spread evenly with a surface squeegee and then deaerate with a spiked roller to achieve an even surface and a mirror-smooth finish.
3. During curing, protect the surface from moisture, dust and mechanical stress. Walkable after approx. 16 hours, fully load-bearing after approx. 7 days (temperature-dependent).

Colour deviations are possible due to raw material variations. When using different batches, base components should be pre-mixed. UV and weather influences can lead to slight colour changes. To avoid curing and mixing problems, components A and B must first be thoroughly mixed, then transferred into a second clean container and mixed again. 
Professional Tip: To Ensure Optimal Substrate Adhesion, We Recommend Preparing Older Floors in Particular by Shot Blasting or Diamond Grinding With Thorough Vacuuming.