Product Data Sheet Show all documents
Sikafloor® Pronto RB-28

Sikafloor® Pronto RB-28

Crack-bridging fast curing flooring system

Sikafloor® Pronto RB-28 is a slip resistant, fast curing, crack bridging, coloured flooring system based on reactive acrylic resins. It has a good crack bridging ability and is suitable for trafficked indoor and outdoor areas. The System can be applied on concrete and asphalt under special treatment.

  • Very fast curing even at low temperatures
  • Good crack-bridging ability
  • Good resistance to specific chemicals
  • Good mechanical resistance
Sikafloor® Pronto RB-28
Product Data Sheet Show all documents

System Structure

1

Primer

Sikafloor®-10 Pronto N
Sikafloor®-10 Pronto N

2-part medium viscosity primer based on reactive acrylic resin

2

Wearing coat & broadcasting in excess

Sikafloor®-32 Pronto
Sikafloor®-32 Pronto

2-part polyurethane modified methacrylate highly flexible resin for self-smoothing flooring systems
OR
Sikafloor® Pronto Filler
Sikafloor® Pronto Filler

Filler for PMMA based products

3

Top coat

Sikafloor®-18 Pronto
Sikafloor®-18 Pronto

2-part flexible pigmented seal coat for internal and external areas based on reactive acrylic resins

Usage

The System can be used in commercial and public buildings and areas such as:
  • Car park decks
Please note:
  • The System may only be used by experienced professionals.
 

Advantages

  • Very fast curing even at low temperatures
  • Good crack-bridging ability
  • Good resistance to specific chemicals
  • Good mechanical resistance

Colour

Cured system colour

Refer to the product data sheet of Sikafloor®-18 Pronto.

Appearance

Cured system appearance

Slip resistant semi-gloss finish

System Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Crack-bridging test EN 1062-7, Sikafloor® Pronto RB-28, kiwa, Report No. P 10729-2-E

  • Crack Bridging Ability ASTM C1305, Sikafloor® Pronto RB-28, NELSON, Test report 19-1060(A)

  • Fire Classification Report EN 13501-1, GHENT, No.CR 22-0038-01

  • Fire classification report B roof T1 EN 13501, Hoch, Report No. KB-Hoch-1501 57-4
System information

System Structure

APPLICATION ON HORIZONTAL SURFACE

Total thickness: 3 mm to 5 mm

Layer

Product

Primer

Sikafloor®-10 Pronto N

Wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

Top coat

Sikafloor®-18 Pronto

 

APPLICATION ON INCLINED SURFACESURFACE

Total thickness: 3 mm to 5 mm

Layer

Product

Primer

Sikafloor®-10 Pronto N

First wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

Second wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

Top coat

Sikafloor®-18 Pronto

Composition

Reactive acrylic resins

Nominal thickness

3 mm to 5 mm
Technical Information

Crack Bridging Ability

Static

> 250 μm, Class A2 (-10 °C )

Reaction to Fire

Class Cfl-s1

(EN 13501-1)

Class BROOF T1

(EN 13501-5)

Chemical Resistance

Refer to the chemical resistance of Sikafloor®-18 Pronto

Permeability to Water Vapour

Class III: SD > 50 m

(EN ISO 7783)

Skid / Slip Resistance

R 12; V 8

(DIN 51130)

Application

Application Information

Ambient Air Temperature

Minimum

0 °C

Maximum

+30 °C

Relative Air Humidity

Maximum

80 % r.h.

Dew Point

Refer to the individual Product Data Sheet.

Substrate Temperature

Minimum

0 °C

Maximum

+30 °C

Substrate Moisture Content

Refer to the individual Product Data Sheet.

Waiting Time / Overcoating

Before applying Sikafloor®-32 Pronto on Sikafloor®-10 Pronto N, Sikafloor®-11 Pronto or Sikafloor®-13 Pronto allow:

Temperature

Waiting time

0 °C

60-70 min

+10 °C

40-50 min

+20 °C

35-45 min

+30 °C

30-40 min

Before applying Sikafloor®-18 Pronto on Sikafloor®-32 Pronto allow:

Temperature

Waiting time

0 °C

80 min

+10 °C

60 min

+20 °C

45 min

+30 °C

30 min

Applied Product Ready for Use

Temperature

Foot traffic

Full traffic

+5 °C

~50 min

~2 hours

+10 °C

~50 min

~2 hours

+20 °C

~40 min

~1 hour

+30 °C

~30 min

~1 hour

Note: Times apply when the last layer of the system has been applied. Times are affected by changing ambient conditions, particularly temperature and relative humidity.
Application consumption

Consumption

APPLICATION ON HORIZONTAL SURFACE

Total thickness: 3 mm to 5 mm

Layer

Product

Consumption

Primer

Sikafloor®-10 Pronto N

1–2 × ~0.3–0.5 kg/m²

Wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

~3.6 kg/m²

~4–6 kg/m²

Top coat

Sikafloor®-18 Pronto

~0.5–0.8 kg/m² depending on the system applied in 1–2 coats (total max. 0.8 kg/m²)

 

APPLICATION ON INCLINED SURFACE

Total thickness: 3 mm to 5 mm

Layer

Product

Consumption

Primer

Sikafloor®-10 Pronto N

1-2 × ~0.3–0.5 kg/m²

First wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

~1.3 kg/m²

~1–2 kg/m²

Second wearing layer

Quartz sand broadcast

Sikafloor®-32 Pronto (filled 1:2 with Sikafloor® Pronto Filler)

Quartz sand or coloured quartz sand (0.7–1.2 mm)

~1.3 kg/m²

~3–4 kg/m²

Top coat

Sikafloor®-18 Pronto

~0.5–0.8 kg/m² depending on the system applied in 1–2 coats (total max. 0.8 kg/m²)

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 product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

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