Sika® Ucrete® RG
(former Ucrete® RG)
Hygienic, heavy-duty polyurethane render and coving mortar
Sika® Ucrete® RG is a heavy-duty polyurethane render and coving mortar. It has very good resistance to aggressive chemicals, heavy abrasion and temperatures up to +120 °C.
- Does not support bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Very good resistance to a wide range of chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
Usage
Sika® Ucrete® RG is used as a render and mortar for Sika® Ucrete® flooring systems. Sika® Ucrete® RG is used within wet and dry process areas including the following application areas:- Food and beverage facilities
- Pharmaceutical facilities
- Chemical and processing facilities
- Manufacturing facilities and workshops
- Bunding areas
- Plinths
- Drainage channels
- Tank bases
- Sumps
- Effluent storage pits
- Coving and skirting
- The Product may only be used by experienced professionals.
Advantages
- Does not support bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Very good resistance to a wide range of chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
Packaging
Refer to the current price list for available packaging variations.
Colour
| Cured colour | Red, Orange, Yellow, Cream, Grey, Light Grey, Green, Green-Brown, Blue. |
Product Details
CERTIFICATES AND TEST REPORTS
Food and Beverage Facilities Suitability, Sika® Ucrete®, HACCP, Test Report No. I-PE-769-SA-2-RG-06b
Halal Certification Europe (HCE), Sika® Ucrete®, WHFC, Certificate No. 21453-2/1/1/Y1
Indoor Air Comfort Gold EN 16516, Sika® Ucrete®, eurofins, Certificate No. IACG-321-01-01-2023
Composition
Water-based polyurethane cement hybrid
Shelf life
Always refer to the best-before date of the individual packaging.
Storage conditions
The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to the packaging.
Refer to the current Safety Data Sheet for information on safe handling and storage.
Density
~2.09 kg/l (mixed, at 20 °C)
System structure
Sika® Ucrete® RG
| Layer | Product |
| Primer | Sika® Ucrete® PRG |
| Wearing layer | Sika® Ucrete® RG |
Compressive strength
| Cured 28 days at +23 °C | 47 - 52 N/mm² |
Flexural-strength
| Cured 28 days at +23 °C | ~15 N/mm² |
Tensile strength
| Cured for 28 days at +20 °C | ~7 MPa |
Tensile adhesion strength
| Concrete failure | (EN 1542) |
Chemical resistance
Laboratory-defined resistance to many individual chemicals. Before proceeding, contact Sika Technical Service for specific information.
Reaction to fire
Class Bfl-s1 | (EN 13501-1) |
Dry film thickness
~6 mm
Application
Material temperature
Maximum | +25°C |
Minimum | +15°C |
Ambient air temperature
Maximum | +25°C |
Minimum | +15°C |
Substrate temperature
| Maximum | +25°C |
| Minimum | +15°C |
Curing time
| Substrate temperature | Return to traffic |
| +8 °C | < 24 hours |
Note: Times are approximate and will be affected by changing ambient and substrate conditions.
Consumption
| Layer | Product | Consumption |
| Primer | Sika® Ucrete® PRG | 0.15–0.2 kg/m2 |
| Wearing layer | Sika® Ucrete® RG | 8–9 kg/m2 for 4 mm 12–13 kg/m2 for 6 mm 18–20 kg/m2 for 9 mm |
SUBSTRATE PREPARATION
IMPORTANT
Reduced service life due to incorrect treatment of cracks
The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking.
TREATMENT OF JOINTS AND CRACKS
Construction joints and existing static surface cracks in substrate require pre-treating before full layer application. Use Sikadur® or Sikafloor® resins.
The System can be applied on green or damp concrete with no standing water. Allow for at least 3 days for early concrete shrinkage to occur to prevent shrinkage cracks from appearing on the wearing surface.
Cementitious substrates must be structurally sound and of sufficient compressive strength (minimum
30 N/mm2) with a minimum tensile adhesion strength of 1.5 N/mm2.
Substrates must be clean, dry and free of contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
APPLICATION
Application must be undertaken by a fully trained and licensed Sika® Ucrete® applicator. Refer to Method Statement of particular system for further details.