Deckrete MF PU Screed – Application Method Statement

1. Introduction

Deckrete MF PU Screed is a heavy-duty polyurethane cementitious flooring system designed for high-impact, thermal shock, and chemical exposure environments such as food factories, commercial kitchens, warehouses, and processing plants.

This method statement outlines the correct installation procedure to ensure optimal performance and durability.

2. Scope of Work

Surface preparation of concrete substrate
Application of Deckrete MF PU Screed system
Finishing and curing
Final inspection and handover

Recommended thickness:

4mm (medium duty)
6–9mm (heavy duty / thermal shock areas)

3. Materials & Equipment

Materials

Deckrete MF PU Screed (Resin + Hardener + Filler)
Primer (if required)
Joint sealant (PU type)

Equipment

Concrete grinder / shot blaster
Industrial vacuum
Mixing drill (low speed 300–400 rpm)
Forced action mixer (recommended)
Steel trowel
Spiked roller (if required)
Measuring tools

4. Surface Preparation

Proper preparation is critical for bonding.

Requirements:

Concrete strength: Minimum 25 MPa
Substrate must be sound and free from laitance
Oil, grease, and contaminants must be removed
Moisture content: Below 5% (or as per product spec)

Procedure:

Grind or shot blast to achieve open textured surface (CSP 3–5).
Remove all dust using industrial vacuum.
Repair cracks or voids using suitable repair mortar.
Cut termination grooves at edges and around columns (10mm x 10mm typical).

5. Mixing Procedure

Deckrete MF PU Screed is supplied in pre-measured packs.

Steps:

Pour resin and hardener into mixer.
Mix for 30 seconds.
Gradually add filler component while mixing.
Continue mixing for 2–3 minutes until homogeneous.

⚠ Do not hand mix.
⚠ Do not add water or solvent.
⚠ Observe pot life (20–30 minutes depending on temperature).

6. Application Procedure

Step 1 – Priming (If Required)

Apply primer to substrate.
Allow tacky state before screed application.

Step 2 – Placement

Pour mixed PU screed onto prepared floor.
Spread using screed box or steel trowel to required thickness.
Compact and level evenly.

Step 3 – Finishing

Smooth surface using steel trowel.
Ensure consistent texture and thickness.
Install coving (if required) while material is workable.

Step 4 – Joint Treatment

After curing, cut movement joints.
Fill with PU sealant.

7. Curing & Protection

Initial set: 6–8 hours
Light foot traffic: 12–16 hours
Full traffic: 24–48 hours
Full chemical resistance: 5–7 days

Protect area from:

Water exposure during curing
Direct sunlight
Contamination

Ideal application temperature:

Substrate: 10°C – 30°C
Avoid condensation (surface temp must be 3°C above dew point)

8. Quality Control

Check thickness using depth gauge
Ensure uniform finish
Verify no debonding or pinholes
Adhesion test if required

9. Safety Precautions

Wear gloves, goggles, and mask
Ensure proper ventilation
Follow MSDS guidelines
Dispose of waste responsibly

10. Advantages of Deckrete MF PU Screed

✔ High impact resistance
✔ Excellent thermal shock resistance
✔ Chemical resistant
✔ Slip resistant texture
✔ Seamless and hygienic
✔ HACCP suitable

Conclusion

Correct installation of Deckrete MF PU Screed ensures long-term durability in demanding industrial environments. Proper surface preparation, accurate mixing, and skilled application are essential to achieve optimal performance.