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SikaForce®-490 L15

Structural 2-component polyurethane adhesive

SikaForce®-490 L15 is a structural 2-component polyurethane adhesive, which cures at room temperature. Formulated for use in fast industrial bonding processes, the product is suitable for application with automated dosing systems or manual dispensing via cartridges.  

  • Good mechanical performances and ageing 
  • High resistance to vibrations, impacts and good noise damping
  • Suitable for assemblies involving dissimilar materials
  • Does not contain solvents or PVC
 
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PRODUCT BENEFITS

  • Good mechanical performances and ageing 
  • High resistance to vibrations, impacts and good noise damping
  • Suitable for assemblies involving dissimilar materials
  • Does not contain solvents or PVC
 

Areas of Application

SikaForce®-490 L15 is suitable for structural elastic bondig of composites (e.g., CFRP, GFRP) or coated metals in marine, transportation and general industry. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.  

Packaging

  

SikaForce®-490 L15 (A+B)

Dual cartridge

50 ml

400 ml

Mixer: Bayonet Mixer TAH 295-620 (50 ml)

Mixer: Turbo Bell Mixer 180AN-82 (400 ml)

SikaForce®-490 L15 (A)

Bucket

6.5 kg

Pail40 kg

SikaForce®-490 (B)

Bucket

5 kg

Pail32 kg
Drum230 kg
 

Product Details

Typical Product Data
Properties

SikaForce®-490 L15 (A)

SikaForce®-490 (B)

Chemical base

Polyol 

Isocyanate

Color (CQP001-1)

Black

Beige

Density

mixed (calculated)

1.47 kg/l

1.17 kg/l

1.34 kg/l

Mixing ratio

by volume

by weight

100 : 100

130 : 100

Viscosity (CQP029-4)

at 15 s-1

65 Pa·s A

Viscosity (CQP538-2)

spindle 4, speed 30

15 Pa·s A

Application temperature

15 ─ 30 °C

Open time (CQP046-11 / ISO 4587)

15 minutes B, C

Handling time (CQP046-11 / ISO 4587)

60 minutes B, C

Shore D hardness (CQP023-1 / ISO 868)

48 D

Tensile strength (CQP036-1 / ISO 527)

13 MPa B, D, E

Elongation at break (CQP036-1 / ISO 527)

95 % B, D, E

E-Modulus (CQP036-1 / ISO 527)

40 MPa B, D, E

Tensile lap-shear strength (CQP046-9 / ISO 4587)

16 MPa B, C, D

Service temperature (CQP513-2)

-40 ─ 130 °C

Shelf life

12 months

CQP = Corporate Quality Procedure

A) tested at 25 °C

B) 23 °C / 50 % r. h.

C) adhesive layer: 25 x 12.5 x 0.2 mmD) cured for 16 hours at 70 °CE) specimen type 1 acc. to ISO 37
Technical Information

CURE MECHANISM

The curing of SikaForce®-490 L15 takes place by chemical reaction of the two components. Higher temperatures (max. 100 °C) speed up and lower temperatures slow down the curing process.

CHEMICAL RESISTANCE

The chemical resistance is influenced by several factors such as chemical composition, concentration, period of exposure and temperature. Therefore a project related testing in case of chemical or thermal exposure is required.

Application

Application Information

Surface preparation

Surfaces must be clean, dry and free from grease, oil, dust and contaminants.
Based on the surface and type of material, physical or chemical pre-treatment might be required. All pre-treatment steps must be confirmed by preliminary tests on original substrates.

Application

Both components must be mixed respecting the defined mixing ratio.
SikaForce®-490 L15 is applied manually, by 1:1 dual cartridge or by adequate equipment.
Manually mixing can be performed with a spatula or a paddle mixer at ≤ 300 rpm ensuring a homogeneous mixture is achieved.
Containers must be closed tightly immediately after each use to prevent moisture ingress. Once opened, the Product shall be consumed within a short period of time.
For 50 ml cartridges a manual dispenser is used, whereas for 400 ml cartridges only electric or pneumatic dispensers with piston driven plungers shall be used.
In case of cartridges, extrude adhesive without mixer to equalize the filling levels. Attach the defined mixer and dispose of the first few cm of the bead before the application. Apply before reaching half of the pot-life and join parts together within the open time. Consider that, if mixed in larger amounts, the exothermic reaction can reduce pot-life and open time significantly.
For advice on selecting and setting up a suitable equipment, contact the System Engineering Department of Sika Industry.

 

Removal

SikaForce®-490 L15 may be removed from tools and equipment with Sika® Remover-208 or another suitable solvent.

Hands and exposed skin have to be washed immediately using hand wipes such as Sika® Cleaner-350H or a suitable industrial hand cleaner and water.
Do not use solvents on skin.

STORAGE CONDITIONS

All components of SikaForce®-490 L15 have to be stored at temperature between 15 °C and 25 °C in a dry place. Do not expose it to direct sunlight or frost.

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