Product Data Sheet Safety Data Sheet Show all documents

Sikasil® Windscreen

High-performance Automotive Glass Sealant

Sikasil® Windscreen is a premium, neutral-curing silicone sealant that displays excellent adhesion to a wide range of substrates and provides a permanent, weatherproof seal. The cured product can withstand exposure to sunlight, salt spray, temperature extremes, vibration and common car cleaning agents without hardening, shrinking or cracking.
   

- Excellent thermal, vibration, UV and weathering resistance
- Adheres well to glass, metals, most plastics, rubber and painted surfaces
- Non-corrosive
- Fast-curing and highly effective
- Easy to apply  
Product Data Sheet Safety Data Sheet Show all documents

PRODUCT BENEFITS

- Excellent thermal, vibration, UV and weathering resistance
- Adheres well to glass, metals, most plastics, rubber and painted surfaces
- Non-corrosive
- Fast-curing and highly effective
- Easy to apply

 

Usage

Sikasil® Windscreen is designed for the fast, convenient and permanent sealing of leaks and gaps in existing windscreens, sunroofs, tail lights and canopy and caravan windows. It provides a tight seal to keep out water, dirt and drafts, preventing rust and other damage. Sikasil® Windscreen can also be used for sealing rubber-mounted windscreens and other vehicle windows as well as around rubber door seals. This product is suitable for professional experienced users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.  

Packaging

Cartridge

300 g

Tube75 g

Product Details

Typical Product Data
Chemical base

1-component silicone

Colour (CQP001-1)

Black

Cure mechanism

Moisture-curing

Cure type

Neutral

Density (uncured)

1.0 kg/l

Application temperature

5 - 45 °C

Skin time (CQP019-1)

10 minutes A

Tack free time (CQP019-3)

20 minutes A

Curing speed (CQP049-1)

to a 3 mm depth

24 hours

Shore A hardness (CQP023-1 / ISO 48-4)

30

Tensile strength (CQP036-1 / ISO 527)

1.0 N/mm2

Elongation at break (CQP036-1 / ISO 527)

600 %

Service temperature

-50 - 250 °C

Shelf life

18 months B

CQP = Corporate Quality Procedure

A) 23 °C / 50 % r.h.

B) storage below 25 °C
Technical Information

CURE MECHANISM

Sikasil® Windscreen cures by reaction with atmospheric moisture. The reaction starts at the surface and proceeds to the core of the joint. The curing speed depends on the relative humidity and the temperature. At low temperatures the water content of the air is lower and the curing reaction proceeds more slowly.

Application

Application Information

Surface preparation

Surfaces must be clean, dry and free from oil, grease and dirt.

Sika® Remover-208 or another suitable solvent may be used for cleaning.

Application

To minimise smearing glass or paintwork with excess sealant, masking tape can first be applied to surrounding surfaces.

Cut the nozzle at a 45° angle to the desired bead size then apply a continuous bead as required, pushing the sealant into the joint as it is being applied to ensure good wet out onto the surface.

Tool off any excess sealant before it skins over then immediately remove any masking tape.

For more information, please contact the Technical Service Department of Sika Industry.

 

Removal

Uncured, excess Sikasil® Windscreen may be removed with Sika® Remover- 208 or another suitable solvent. Cured sealant can only be trimmed away or scraped off mechanically.

Hands and exposed skin should be washed immediately using SikaCleaner®- 350H or a suitable industrial hand cleaner and water.

Do not use solvents!

Overpainting

Sikasil® Windscreen cannot be overpainted.

Application limits

Sikasil® Windscreen is not recommended for use on prestressed polycarbonate or other plastic surfaces that are prone to stress cracking.
Sikasil® Windscreen should not be used as a direct glazing adhesive – please contact Sika Industry for information relating to direct glazing adhesives available in the Sika range.

The above information is offered for general guidance only. Advice on specific applications will be given on request.

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