Product Data Sheet Show all documents
SikaRoof® i-Cure-22

SikaRoof® i-Cure-22

Low odour UV-stable polyurethane liquid applied roof waterproofing system – 2,2 mm

SikaRoof® i-Cure-22 is a low odour, cold-applied, fabric reinforced, polyurethane liquid applied membrane roof waterproofing system. The system is highly elastic and UV-stable which provides a durable waterproofing solution. It incorporates Sika's unique i-Cure technology.

  • The low-odour characteristics makes the system suitable for odour sensitive projects
  • The fast curing provides early resistance to rain damage almost immediately on application
  • A maintenance coat is easily applied when needed without the requirement to remove previous coats
  • Thickness: ~2,2 mm
  • Cold applied - requires no heat or flame
  • Seamless finish
  • Easily detailed around complex geometries
  • Reinforced with Sika® Reemat Premium
  • Good crack-bridging ability at low temperatures
  • Retains flexibility at low temperatures
  • Good adhesion to many substrates
  • Vapour permeable
  • Resistant to many common environmental influences
SikaRoof® i-Cure-22 SikaRoof® i-Cure-22
Product Data Sheet Show all documents

Usage

The product can be used for the following roof waterproofing applications:
  • New construction and refurbishment projects
  • Roofs with numerous details such as penetrations, drains, roof lights and complex geometry
  • Failing roofs to extend the service life
  • Cool and solar roofs when used in combination with Sikalastic®-641 TC (~ RAL 9016, available on indent)
  • Sensitive areas requiring low odour
The product can be used on the following substrates:
  • Aluminium
  • Brass
  • Bitumen sheet membranes
  • Bituminous coatings
  • Bricks
  • Cementitious substrates
  • Concrete slabs
  • Copper
  • Existing Sikalastic® MTC System
  • Galvanised steel
  • Lead
  • Ferrous metals
  • Paints/coatings
  • Single ply polymeric sheeting
  • Stainless steel
  • Stone
  • Ceramic tiles
  • Wood
Please note:
  • The System may only be used for exterior applications.
  • The product is not suitable for permanent water immersion.

Advantages

  • The low-odour characteristics makes the system suitable for odour sensitive projects
  • The fast curing provides early resistance to rain damage almost immediately on application
  • A maintenance coat is easily applied when needed without the requirement to remove previous coats
  • Thickness: ~2,2 mm
  • Cold applied - requires no heat or flame
  • Seamless finish
  • Easily detailed around complex geometries
  • Reinforced with Sika® Reemat Premium
  • Good crack-bridging ability at low temperatures
  • Retains flexibility at low temperatures
  • Good adhesion to many substrates
  • Vapour permeable
  • Resistant to many common environmental influences

Colour

Sikalastic®-631: Oxide Red (~RAL 3011)
Sikalastic®-641: Slate Grey (~RAL 7015)

Other colours available upon request.

System Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to European Technical Assessment ETA-14/0177, based on ETAG 005 Part 1 and Part 6 — Liquid applied roof waterproofing kits. Part 1: General. Part 6: Specific stipulations for Kits based on Polyurethane
  • Fire testing EN 13501, Sikalastic®-641, Sikalastic®-631, Exova, Report No. WF 406986, WF 406987
  • Fire Testing EN 13501-5, Sikalastic®-641, Sikalastic®-631, BRE, Report No.Q100348-1002 Issue 1 Q100348-1005 Issue 2
  • Fire Testing BS 476, Sikalastic®-641, Sikalastic®-631, BRE, Report No.Q100348-1000 Issue 1, Q100348-1003 Issue 2
  • Fire testing BS EN ISO 11925-2, Sikalastic®-641, Sikalastic®-631, Exova, Report No. 405551, 405552
  • Fire Testing CEN/TS 118, Sikalastic®-641, Sikalastic®-631, BRE, Report No.Q100348-1001 Issue 1, Q100348-1004 Issue 2
  • Annual QA sensory testing EN 13725, Sikalastic®-641, Sikalastic®-631, olfasense, Report No. SIKA21A0_01

 
System information

System Structure

SikaRoof® i-Cure-22

02-en-3b_sikaroof-MTC22-(2-top-coats)-1000

Layer

Product

Consumption

1. Primer

Depends on type of substrate

Refer to individual Product Data Sheet

2. Base coat

Sikalastic®-631

≥ 1,0 l/m2
(≥ 1,4 kg/m2)

3. Reinforcement

Sika® Reemat Premium

-

4. Top coat

Sikalastic®-641≥ 0,8 l/m2
(≥ 1,13 kg/m2)
5. Top coatSikalastic®-641≥ 0,8 l/m2
(≥ 1,13 kg/m2)

IMPORTANT

The system structure layers as described in table must not be changed.

Note:These figures are theoretical and do 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.

Composition

Aromatic & aliphatic polyurethanes
Technical Information

Dry film thickness

~2,2 mm

Tensile Strength

~7,5 N/mm2

(EN ISO 527-3)

Tear Strength

~23,2 N/mm

(EN ISO 6383-1:2004)

Chemical Resistance

Sikalastic®-641 provides the chemical resistance.
Refer to Product Data Sheet.

Solar Reflectance Index

≥ 108

(ASTM 1980-11)

Value refers to the initial (properly cured, non-weathered) condition of Sikalastic®-641 white (~RAL 9016).

Service Temperature

-30 °C min. / +90 °C max.

Application

Application Information

Ambient Air Temperature

+5 °C min. / +35 °C max.

Relative Air Humidity

20 % min. / 85 % max.

Dew Point

Beware of condensation.

The substrate and uncured applied layers must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the membrane finish.

Substrate Temperature

+5 °C min. / +60 °C max.

Substrate Moisture Content

The Product can be applied on substrates with a moisture content of ≤ 4 %. The substrate must be visibly dry with no standing water.

The following test methods can be used to determine the substrate moisture content:

  • Sika®-Tramex meter
  • CM measurement
  • Oven-dry method

Waiting Time / Overcoating

Sikalastic®-641 on Sikalastic®-631:

Ambient conditions

Minimum waiting time

+5 °C / 50 % r.h.

~14 hours

+10 °C / 50 % r.h.

~6–8 hours

+20 °C / 50 % r.h.~4 hours
+30 °C / 50 % r.h.~3 hours

Note:After four days the surface of Sikalastic®-631 must be cleaned and primed with Sika® Reactivation Primer before applying Sikalastic®-641.

Note:Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

Applied Product Ready for Use

Ambient conditions

Rain resistant

Touch dry

Full cure

+5 °C / 50 % r.h.

~1 hour

~10–12 hours

~24 hours

+10 °C / 50 % r.h.

~1 hour

~6–8 hours

~18–24 hours

+20 °C / 50 % r.h.

~1 hour

~4–6 hours

~12–18 hours

+30 °C / 50 % r.h.~1 hour~3–5 hours~8–12 hours

Note: After application, the product must be protected from heavy rain or rain showers until dry to prevent surface damage.
Note: Application at higher than recommended film thicknesses may result in a prolonged “soft” texture to the coating. This will eventually cure.

Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

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