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Sikagard®-6440 S

Sikagard®-6440 S

Sprayable underbody and stone chip protection coating in aerosol can

Sikagard®-6440 S is a rubber-based quick repair protective coating in an aerosol can with good rust-proofing and sound deadening properties. It is suitable for an effective underbody and stone chip protection to the vehicle body.
Sikagard®-6440 S shows a good over paintability performance with most of the commonly used paint systems.  

  • Shake and Spray - equipment independent (aerosol).
  • Easy applicaton with no running or dripping
  • Good abrasion, impact and road salt resistance
  • Variours finishes achievable
  • Good adhesion performance
  • Over paintable
  • Very good low temperature behavior
  • Free of heavy metal
  • Remains flexible when dry
 
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PRODUCT BENEFITS

  • Shake and Spray - equipment independent (aerosol).
  • Easy applicaton with no running or dripping
  • Good abrasion, impact and road salt resistance
  • Variours finishes achievable
  • Good adhesion performance
  • Over paintable
  • Very good low temperature behavior
  • Free of heavy metal
  • Remains flexible when dry
 

Areas of Application

Sikagard®-6440 S is a spray applied anti-corrosion coating for quick repair of vulnerable, painted parts of vehicles such as door sills, wheel arches, front and rear aprons as well as vehicle underbody parts.
Sikagard®-6440 S shows good adhesion on different paints, metal primers, metals and PVC.
This product is suitable for experienced professional users only. Test with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.  

Product Details

Typical Product Data
Chemical base

Rubber based

Color (CQP001-1)

Black / grey

Cure mechanism

Air-drying

Density (uncured)

0.78 kg/l

Solid content

33%

Application temperature

15 ─ 25 °C

Film thickness

wet

dry

600 µm

200 µm

Tack free time

30 minutes A

Drying time

16 h A

Service temperature

-25 ─ 80 °C

Shelf life

24 months B

CQP = Corporate Quality Procedure

A) 23 °C / 50 % r. h.

B) Storage between 5 °C and 25 °C
Technical Information

CHEMICAL RESISTANCE

Sikagard®-6440 S is resistant against water, seawater, salt spray, oil, bases and acids.

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

Application

Application Information

Surface preparation

Surfaces must be clean, dry and free of rust, dust and grease.

Metal substrates must be pre­treated in order to prevent corrosion where required (e.g. uncoated steel, etc).

Application

Shake can approx. 40 times before use. Cover adjacent surfaces prior the spray process. Hold the can in an upright position and spray at room temperature and from a distance of approx. 25 cm in an grid motion to build up a continuous coat.

Apply Sikagard®-6440 S until the desired layer thickness is reached. If a thick layer is required, let layers dry in between. Do not spray on parts of the brake, engine or exhaust system.

After use, invert can and spray in short bursts to clear nozzle.

 

Removal

Fresh Sikagard®-6440 S can be removed from tools and equipment with Sika® Remover-208. Once dried, the material can only be removed mechanically.

Hands and exposed skin should be washed immediately using Sika® Handclean towels or a suitable industrial hand cleaner and water. Do not use solvents on sikn.

Overpainting

Sikagard®-6440 S is over paintable in a dry state (after 16 hours) with commonly used conventional paint systems. Waiting time can be reduced by accelerated drying at max. 40°C. Due to the wide range of paints adhesion and compatibility tests are necessary.

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