Henkel Lite-Lok 490

Henkel Lite-Lok 490 Datasheet
  • Description for Henkel Lite-Lok 490

    A UV light curable sealer designed primarily to bond and seal metal components. The cured product has good impact resistance, good depth of cure, and good humidity resistance. Good thermal cycling resistance, hard, tack free cured surface.

    *See Terms of Use Below

    Brand Bondmaster
    Application Type Seal
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Metal, Polyolefins
    Industry Motor
    Manufacturer Henkel
    Chemistry Acrylate mixture
    Cure Method UV
    Cure Time (min) Fast, 0.02 to 0.05
    Viscosity (cPs) 20,000
    Color Clear
    Other Resistance Good thermal cycling resistance
  • Technical Data for Henkel Lite-Lok 490

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
      • Polyolefin - Polyolefins
      • Metal
    • Industry
      • Motors - Motor
    • Chemistry
    • Application Method
      • Dispenser - Piston pump dispensing system, Pressure pot
    • Cure Method
      • UV / Visible Light - UV
    • Color
      • Clear / Transparent - Clear
    • Brand
      • Bondmaster
    Specifications
    Cure Specs
    Cure Time (min) Fast, 0.02 to 0.05
    Viscosity (cPs) 20,000 Test Method
    Bond Strength
    Impact Strength (psi) Impact strength
    Material Resistance
    Impact Resistance Good impact resistance
    Moisture/Humidity Resistance Good
    Other Resistance Good thermal cycling resistance
    Other Properties
    Specific Gravity 1.070
    Flash Point (°F) >212.0
    % Solids (%) 100
    Business Information
    Shelf Life Details LITE LOK 490 has a shelf life of six months when stored at 2°C-27°C (35°F-80°F).;Store below 27°C (80°F), do not freeze., LITE LOK 490 has a shelf life of six months when stored at 2°C-27°C (35°F-80°F).;Store below 27°C (80°F), do not freeze.
    Shelf Life (mon) 6, 6
  • Best Practices for Henkel Lite-Lok 490

    *See Terms of Use Below

    1. Surface Preparation

      LITE-LOK 490 bonds well to many untreated surfaces. However, adhesion is often improved by surface preparation before bonding. The surface should be free of contamination such as dirt, dust, grease or oil. An alcohol wipe is suitable for cleaning most surfaces. Optimum strength is obtained by abrading the surface followed by a solvent wipe to remove any loose particles. Polyolefins must be corona treated, or flame treated before bonding.

    2. Application

      LITE-LOK 490 is best applied by extruding the product onto the substrate to be sealed or bonded using a 14-16 gauge dispensing tip. Sufficient product must be applied to seal all gaps, and completely coat the part to be bonded or sealed. After dispensing onto the part, the product should be cured as soon as possible to prevent any pre-reaction with ambient light.

      LITE-LOK 490 may be applied via a pressure pot, or piston pump dispensing system. All fittings and tubing used in the dispensing system must be opaque to light.

    3. Curing

      Optimum cure is obtained when LITE-LOK 490 is exposed to UV light. The peak reactivity of the product is from exposure to light from 325 nm through 365 nm. The time needed for curing is a combination of many factors. Some of these are: The thicker the substrate, the longer the exposure time needed for curing. The more UV light absorbing that the substrate is, the longer the exposure time needed for curing. The lower that the intensity of the UV light source is, the longer the exposure time needed for curing. The farther the distance of the product from the UV light source, the longer the exposure time needed for curing.

      Typically, LITE-LOK 490 will cure after a UV light exposure from one to three seconds, when cured at or near the focal point of a high intensity UV light source. To achieve complete cure, all of the product must be exposed to the UV light source.

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Viscosity Test Methods
Viscosity Temperature
20,000 cPs 25°C