Product Data Sheet Show all documents

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.

  • Expert installation by fully trained and licensed applicators
  • Resistant to 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
Product Data Sheet Show all documents

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
  • Drianage channels
  • Tank bases
  • Sumps
  • Effluent storage pits
  • Coving and skirting
Please note:
  • The Product may only be used by experienced professionals.
 

Advantages

  • Expert installation by fully trained and licensed applicators
  • Resistant to 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, Bright Yellow, Cream, Grey, Light Grey, Green, Light Green, Green/ Brown, Blue.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • 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
Product Information

Chemical Base

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

Mixed Product

~2.09 kg/l

System information

System Structure

02_en_Sika-Ucrete-RG

Layer

Product

1.

Primer

Sika® Ucrete® PRG

2.

Wearing layer

Sika® Ucrete® RG
Technical Information

Abrasion Resistance

Cured 20 days at +23 °C

126 mg

Compressive Strength

Cured 28 days at +23 °C

52 N/mm²

Tensile Strength in Flexure

Cured 28 days at +23 °C

15 N/mm²

Tensile Strength

Cured for 28 days at +20 °C

7 MPa

Tensile Adhesion Strength

> 2.0 N/mm² (concrete failure)

(EN 1542)

Service Temperature

Maximum

+120 °C

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)

Application

Application Information

Layer Thickness

~4–9 mm

Product Temperature

Maximum

+22 °C

Minimum

+15 °C

Ambient Air Temperature

Maximum

+30 °C

Minimum

+5 °C

Substrate Temperature

Maximum

+30 °C

Minimum

+5 °C

Curing Time

Substrate temperature

Return to traffic

+8 °C

16–24 hours

Note: Times are approximate and will be affected by changing ambient and substrate conditions.
Consumption

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

Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply the Product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
Application steps

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.

  1. For static cracks, ensure the width is suitable for overcoating with Sika® Ucrete® RG.
  2. For dynamic cracks, ensure the movement is within the movement capacity of Sika® Ucrete® RG.

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 Product 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 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.

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