Sika® Raingard

Uses Exposed roof waterproofing
Impervious coating on roofs (flat and sloped) and concrete structures
As protective coating in infrastructure projects
On non-trafficked areas
Excellent adhesion to concrete, brickwork, corrugated asbestos, and asbestos
cement sheet.
Characteristics / Crack-bridging
Advantages Flexible
Water vapour permeable
Simple application (even at detailing)
Economical
Bonds well to all types of masonry substrate
High diffusion resistance against CO2
Ultra violet rays and weather resistant
Algae and fungi resistant

Product Data
Form
Appearance /Colours Sika
Raingard: White/Grey
Packaging Sika®
Raingard:4.5kg, 18kg and 200kg
Storage
Storage Conditions/ Best before 12 months if stored properly in undamaged and unopened original
Shelf-Life
sealed packaging in dry and cool conditions at +5°C-30°C Liquid component must be
protected from frost.

Technical Data

Chemical Base Acrylic polymer dispersion
Density Sika®
Raingard:~1.400 kg/l at 27º C
Layer Thickness With Sika®
Fab-1 ~1.2 mm
Service Temperature +5 ºC to +45ºC
Mechanical / Physical
Properties
Bond Strength 1.5 N/mm2
(According to ISO 4624)
Crack bridging 2 mm (According to ASTM C 1305 – 06)
properties
Moisture permeability Passes (According to IS101)
Crack resistance Passes 3 mm mandrel (According to IS101)
Salt spray resistance Satisfactory
Workable time 15 minutes at +27º C
Tack free time 25 minutes at +27º C
Water permeability Passes (According to IS 2645)
Accelerated weathering, No cracking / no blister (According to IS 101)
500 hours
Solid Content 62 %
Polymer Content 34%

System Structure Layer thickness: 1.2 mm
Primer:
1 x Sika
Raingard (diluted with 20%
water)
First Coat: 1 x Sika
Raingard
Fabric reinforcement : 1 x Sika
Fab 1
Second Coat: 1x Sika
Raingard
Top Coat: 1x Sika
Raingard

Application Details
Consumption / Dosage Sika
Raingard Primer : 0.200 kg/m2
per coat depending on the substrate
Sika
Raingard: 0.5 kg /m2
per coat (2-3 coats recommended)
Total thickness – 1.2 mm approx with Sika
Fab1 and 1mm without Sika®
Fab1
Substrate Quality The cementitious substrate should be sound and of sufficient strength (min. 25
N/mm²). Minimum pull-off strength 1.5 N/mm², it should be free from grease, oil
and contamination.
Substrate Preparation All dust, loose and friable materials and glaze or varnish of tiles must be completely
removed by mechanical means. Existing coatings have to be inspected, cleaned
and mechanically ground to achieve a sound, gripping substrate. In case of bad
adhesion to the substrate, existing coatings have to be removed.
The uneven surface should be properly treated by suitable Sika
material to get a
plain surface.

Application
Conditions /
Limitations
Substrate Temperature +10°C min / +40°C max
Ambient Temperature +10°C min / +40°C max

Application Method / Sika
®
Raingard is supplied in a single component pack and is in ready to use form.
Tools Stir thoroughly before application.
Within 45 minutes of priming apply 1st
coat of Sika
®
Raingard by brush or roller. Do
not spoil the dry surface while walking on it for application.
Place Sika
®
Fab1 over the first coat when it is in tacky condition
Apply the 2nd
and 3rd
coat of Sika
®
Raingard following the same above procedure at
suitable time interval of 24 hours between the two coats

Waiting Time / Waiting time between coats
Overcoating
+30°C 24 hours