Product Data Sheet Safety Data Sheet Show all documents

Sikasil® C

Alcoxy silicone sealant for construction and sanitary applications

Sikasil® C is a 1-component, non-corrosive multipurpose sealant for indoor and outdoor applications.

  • Faint odor
  • Non-corrosive
  • High elasticity and flexibility
  • Long term fungus and mildew resistance
  • Very good UV and weathering resistance
  • Primer-less adhesion to a wide range of substrates
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikasil® C is designed for glazing and connection joints. Sikasil® C adheres well to metals, concrete, painted surfaces, wood, plastics, polycarbonates, ceramic tiles and is suitable for most sanitary applications.  

Advantages

  • Faint odor
  • Non-corrosive
  • High elasticity and flexibility
  • Long term fungus and mildew resistance
  • Very good UV and weathering resistance
  • Primer-less adhesion to a wide range of substrates

Packaging

300 ml cartridges, 12 cartridges per box

Colour

Colour range to be defined by local sales organization.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • ISO 11600 F 25 LM
  • ISO 11600 G 25 LM
  • EN 15651-1 F EXT-INT CC
  • EN 15651-2 G CC
  • EN 15651-3 S
Product Information

Chemical Base

Alcoxy silicone

Shelf Life

Sikasil® C has a shelf life of 15 months from the date of production, if it is stored properly in undamaged, original, sealed packaging, and if the storage conditions are met.

Storage Conditions

Sikasil® C shall be stored in dry conditions, protected from direct sunlight and at temperatures between +5 °C and +25 °C.

Density

1.00 kg/l approx.

(ISO 1183-1)
Technical Information

Shore A Hardness

20 approx. (after 28 days)

(ISO 868)

Tensile Strength

1.6 N/mm2

(ISO 8339)

Secant Tensile Modulus

0.35 N/mm2 at 100% elongation (23 °C)

(ISO 8339)

Elastic Recovery

> 70%

(ISO 7389)

Tear Propagation Resistance

3.1 N/mm approx.

(ISO 34)

Movement Capability

± 25%

(ISO 9047)

Service Temperature

−40 °C to +150 °C

Joint Design

The joint width must be designed to suit the joint movement required and the movement capability of the sealant. For joints ≥ 10 mm and ≤ 20 mm wide, a joint depth of 10 mm is recommended.

For larger joints please contact our Technical Service Department.

Application

Application Information

Sag Flow

< 1 mm approx. (20 mm profile, 23 °C)

(ISO 7390)

Ambient Air Temperature

+5 °C to +40 °C, min. 3 °C above dew point temperature

Substrate Temperature

+5 °C to +40 °C

Curing Rate

3.5 mm/24 hours approx. (23 °C / 50% r.h.)

(CQP 049-2)

Skin Time

35 minutes approx. (23 °C / 50% r.h.)

(CQP 019-1)
Consumption

Consumption

Joint length [m] per 300 ml

Joint width [mm]

Joint depth [mm]

3.0

10

10
2.01510
1.5

20

10
Application steps

SUBSTRATE PREPARATION

The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. Sikasil® C adheres without primers and/or activators.
However, for optimum adhesion and critical, high performance applications, such as on multi-story buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming and/or pre-treatment procedures shall be followed:
 
Aluminium, anodised aluminium, stainless steel, galvanised steel, powder coated metals or glazed tiles have to be cleaned and pre-treated using Sika® Aktivator-205, wiped on with a clean towel. Before sealing, allow a flash-off time of > 15 minutes (< 6 hours).
Other metals, such as copper, brass and titanium-zinc, also have to be cleaned and pre-treated using Sika® Aktivator-205, wiped on with a clean towel. After the necessary flash-off time, use a brush to apply Sika® Primer-3 N and allow a further flash-off time of > 30 minutes (< 8 hours) before sealing the joints.
PVC has to be cleaned and pre-treated using Sika® Primer-215 applied with a brush. Before sealing, allow a flash-off time of > 30 minutes (< 8 hours).
Glass shall be cleaned with isopropyl alcohol before application.
 
Note: Primers are adhesion promoters. They are neither a substitute for the correct cleaning of a surface, nor do they improve the strength of the surface significantly.

For more detailed advice and instructions please contact our Technical Service Department.

CLEANING OF TOOLS

Clean all tools and application equipment immediately after use with Sika® Remover-208 and/or Sika® TopClean T. Once cured, residual material can only be removed mechanically.

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