Mechanical and chemical protection
Chemical and abrasion protection for demanding industrial service.
Rayson PurScreed PC70
Rayson PurScreed PC70 is a four-part, water-based polyurethane-cement self-smoothing screed installed at 1.5–3 mm for medium to heavy-duty industrial floors with high chemical resistance.
Best for
Best for food and beverage production, chemical processing and hard-traffic industrial floors that need a tough, chemically resistant screed.
Real product · Interactive depth view Rayson PurScreed
Product system Rayson PurScreed PC70
Part A 3 kg / Part B 3 kg / Part C 14 kg / Part D 0.5 kg per set RY-TDS-601
Engineered for demanding industrial floors—not decorative paint duty.
Short answer: consider PurScreed PC70 when food production, chemical processing or hard-traffic industrial floors need more mechanical and chemical headroom than a conventional thin-film epoxy coating. The final build-up must still be confirmed against the substrate, exposure and site conditions.
High bond to suitable concrete
Reliable adhesion when concrete is correctly prepared.
Self-smoothing 1.5–3 mm screed
A seamless, self-smoothing polyurethane-cement body layer.
Made for hygienic, washdown and hard-traffic floor environments.
The seamless PU-cement surface suits food and beverage production, chemical processing and heavily trafficked industrial areas. The image shows a representative installation environment; slip resistance, falls and detailing must be selected for the project.
One controlled four-part installation sequence.
This sequence supports early planning. It does not replace the current Technical Data Sheet, approved method statement or project-specific technical review.
- 01
Mechanically prepare the substrate
Concrete must meet the stated age, strength and moisture requirements, with weak material, contamination and defects removed.
- 02
Mix all four parts in sequence
Parts A, B, C and D must be mechanically combined in the order stated in the current method statement until uniform.
- 03
Trowel at 1.5–3 mm
Place continuously and control thickness. Pot life is approximately 15–20 minutes at 30°C.
- 04
Protect through final cure
Keep the installed layer free from contamination and damage while curing. Final cure is 7 days.
Floor system cutaway
Every layer has a job—from substrate to service surface.
This diagram explains a typical system position, not a fixed specification. Primer, thickness and detailing must be confirmed for the substrate and project conditions.
Position in the system Body screed / wear layer
PurScreed PC70 forms the principal thickness and mechanical performance of the floor. The complete build-up, including any primer or base, must be confirmed for the project.
Related system products
Review primers, body layers, finishes or specialist components connected to this product.
- Finished service surfaceSlip resistance, falls and detailing selected for the project
- PurScreed PC70 body layer1.5–3 mm body screed / wear layer
- Approved primer / baseIncluded when required by the system design
- Mechanically prepared concreteStrength, moisture and surface condition must comply
Four figures for faster project screening.
Use these figures for early selection. Rayson should confirm the final build-up and quantity against the site conditions.
- Indicative consumption
- 1.8 kg / m² / mm
- Working time
- 15–20 minutes
- Final cure
- 7 days
- Complete kit
- 20.5 kg / set
Actual use varies with the substrate
Approximate pot life at 30°C
Protect the floor throughout curing
A 3 · B 3 · C 14 · D 0.5 kg
Confirm the substrate and service environment before specifying.
Choose it when
- Medium to high loading self-smoothing screeds at 1.5–3 mm
- Food and beverage production and processing floors
- Chemical processing and wash-down areas
- Primer, base coat or wear coat within heavy-duty industrial flooring systems
Relevant applications
Food & Beverage Facilities Chemical-Processing Environments Warehouses & Manufacturing Areas Concrete Floors
Relevant industries
Choose something else when
- Minimum substrate temperature 5 °C; curing between +10 °C and +35 °C; concrete moisture content maximum 5%
- Short pot life (15–20 minutes at 30 °C); cures faster in hot weather — batching and placement must be continuous
- Standard colours light grey and green; other colours on request only
- Four-part mixing sequence must be followed exactly for a consistent screed
- Decorative or colour-critical spaces — industrial colour range only
- Exterior UV-exposed decks without a UV-stable finish
- Thin-film budgets — this is a 1.5–3 mm screed, not a paint
- Substrates with moisture above 5% or weak, unprepared concrete
Other Rayson products to evaluate
These links continue the comparison; they are not automatic substitutes. Confirm the substrate, exposure and complete build-up before selection.
Substrate requirements+
- Mechanically prepared concrete (minimum 28 days old, moisture content below 5%)
- Highly absorbent substrates
- Substrate pull-off strength above 1.5 N/mm² after preparation
Technical documents and project support
Ready to assess a project? Give Rayson the site conditions.
Send the floor area, concrete condition, expected traffic, chemical exposure, drainage details and programme. The technical team can help review the build-up and estimated quantity.
What to know before specifying PurScreed PC70.
When should I choose a PU-cement screed over an epoxy floor?
When the exposure outruns epoxy — aggressive chemical spill zones, hot wet processing and heavy industrial traffic. For drier, lighter duties an epoxy system like LevelShield SL120 is usually more economical.
What thickness should be specified?
Between 1.5 and 3 mm as a self-smoothing screed, selected against loading. Heavier mechanical duty sits at the top of that range — our technical team will match thickness to your traffic.
Can it resist hot wash-down?
PU-cement chemistry is the industry answer for thermally aggressive wash-down zones. Verify your specific wash-down regime and temperature limits with our team.
What colours are available?
Light grey and green as standard; other colours are available on request with lead time.
Why is the mixing sequence so strict?
The resin, hardener and powder must combine in order and mix fully — shortcuts leave unmixed powder that weakens the screed. Allow 3–4 minutes of mixing after the powder bag is empty.
Does it need coving at wall junctions?
In hygiene-critical areas, yes — coved details close the floor-wall junction against water and bacteria. Coving is detailed as part of the floor system design.
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