Product Data Sheet Show all documents
Sika® RainTite

Sika® RainTite

ACRYLIC WATERPROOFING

Sika® RainTite is one component multipurpose highly flexible UV resistant acrylic emulsion based. It can be applied on parapet walls, external walls, etc and can be combined with membrane. The system forms a fully bonded, durable, flexible waterproofing membrane.

  • External weather & UV resistant
  • Easy to use and apply
  • No priming
  • Excellent adhesion to most surfaces
  • High flexibility
  • Thixotropic
  • Non toxic
  • Will not promote fungal growth
Product Data Sheet Show all documents

Usage

  • Concrete sloped roofs (with membrane)
  • Finishing
  • Sealing joints, laps and roofing screws on various kind of roofs (roof tile, asbestos, zinc)
  • Parapet walls
  • External walls
 

Advantages

  • External weather & UV resistant
  • Easy to use and apply
  • No priming
  • Excellent adhesion to most surfaces
  • High flexibility
  • Thixotropic
  • Non toxic
  • Will not promote fungal growth

Packaging

1 kg, 4 kg, 20 kg pail (Grey & White)

1 kg, 4 kg, 18 kg pail (Transparent)

Colour

White, Grey , Transparent.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Certified Singapore Green Label, The Singapore Environment Council, Environmentally Preferred Paints & Surface Coating, December 2023.
Product Information

Shelf Life

12 months from date of production

Storage Conditions

Stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C and protect from direct sunlight.
System information

System Structure

Without membrane

Primer (if substrate is porous) :

~0.3 kg/m2

(diluted with 10 % water)

1st Coat :

~0.3 kg/m2

2nd Coat :

~0.3 kg/m2

With membrane

Primer (if substrate is porous) :

~0.3 kg/m2

(diluted with 10 % water)

1st Coat :

0.8 - 1.0 kg/m2

Membrane
2nd Coat :0.8 - 1.0 kg/m2

Top Coat :

~0.4 kg/m2
Technical Information

Tensile Strength

~2.5 N/mm2

Behaviour After Artificial Weathering

No serious effect after 3 000 hours

 

Dry film thickness

~0.3 mm to ~0.45 mm (2 - 3 coats without membrane)

~1.0 mm to ~1.35 mm (3 - 4 coats with membrane)

Application

Application Information

Ambient Air Temperature

< 35 °C

Substrate Temperature

< 35 °C

Drying Time

2-3 hours depending upon ambient conditions
Application steps

SUBSTRATE PREPARATION

Surface must be clean, sound and properly cured. Remove all loose materials mechanically, preferably with a wire brush. Iron and steel surfaces should be free of rust.

APPLICATION

Without Membrane :

  • For porous substrate, apply first coat Sika® RainTite diluted with 10 % water as primer layer. Allow enough drying time (>3 hours, depending upon ambient conditions)
  • Apply Sika® RainTite in two coats (~0.3 kg/m2/coat), by brush or roller

With Membrane :

  • For porous substrate, apply first coat Sika® RainTite diluted with 10 % water as primer layer. Allow enough drying time (>3 hours, depending upon ambient conditions)
  • Apply a first coat (0.8 - 1 kg/m2) of Sika® RainTite by brush or roller
  • Embed the membrane into the first coat while it is still wet. Ensure that the membrane is thoroughly embedded and smooth out all air pockets and creases. Overlaps of adjacent membrane must be a minimum of 50 mm
  • Immediately apply a second coat (0.8 - 1 kg/m2) of Sika® RainTite while the first coat is still wet, to fully saturate the membrane from both sides
  • When dry, apply a final top coat (~0.4 kg/m2) to complete the application. Protect from rain until dry

CLEANING OF TOOLS

Remove uncured surface Sika® RainTite with water. Cured material can only be removed mechanically.

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