Henkel Lite-Lok 482
Brand Bondmaster Application Type Bond, Potting, Sealing, Adhesive: Instant Adhesives, Encapsulation 1 Part or 2 Part 1-Part Material Form Liquid Substrate Acrylic, Aluminum, Glass, Plastics, Polycarbonate, Polyurethane, PVC, Steel, Polystyrene , SBR, ABS, Hi- Impact Acrylic Industry Plastic headlamp Manufacturer Henkel Chemistry Urethane Acrylate, Urethane Acrylate, Urethane Acrylate Cure Method UV Cure Time (min) Fast, 0.03 to 0.08 Viscosity (cPs) 50,000 Color Clear, Transparent Other Resistance Good thermal cycling resistance Durability Excellent Toughness
Technical Data for Henkel Lite-Lok 482
1 Part or 2 Part
- Headlamp - Plastic headlamp
- Dispenser - Piston pump dispensing system, Pressure pot
- UV / Visible Light - UV
- Clear / Transparent - Clear, Transparent
Cure Time (min) Fast, 0.03 to 0.08 Viscosity (cPs) 50,000 Test Method
Shear Strength (psi) 500, 240, 250, 160, 380, 300, 170, 340, 320, 400, 360 Test Method
Impact Resistance Good impact resistance Moisture/Humidity Resistance Good Other Resistance Good thermal cycling resistance
Durability Excellent Toughness Shore A Hardness 75
Specific Gravity 1.070 Flash Point (°F) >212.0 % Solids (%) 100
Shelf Life Details Uncured Shelf Life Temperature (°F) 81 Shelf Life (mon) 6
Best Practices for Henkel Lite-Lok 482
LITE-LOK 482 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.
LITE-LOK 482 is best applied by extruding the product onto the substrate to be sealed or bonded. 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 482 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. If the product is transferred from a large container to a smaller hand held dispensing bottle, that bottle must be light impenetrable. (see Storage & Handling).
Optimum cure is obtained when LITE-LOK 482 is exposed to long wavelength UV light or short wavelength visible light. The peak reactivity of the product is from exposure to light from 365 nm through 420 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 482 will cure after a UV light exposure from two to five seconds, when cured at or near the focal point of the light source, and at the required energy levels stated below.
Unreacted material can be cleaned up using acetone. If skin contact occurs, the affected area should be washed thoroughly with soap and water. Eye protection against UV light should be worn whenever the product is being used. Eye contact should be treated by thoroughly washing with water followed by medical attention. Aprons should also be used. Adequate ventilation is necessary to prevent inhalation of vapors.
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Viscosity Test Methods
Shear Strength Test Methods
|Shear Strength||Type||Substrate||Test Temperature||Test Method|
|500 psi||Lap shear strength||Polycarbonate||25°C||Denotes substrate failure with the bondline still intact|
|240 psi||Lap shear strength||Acrylic||25°C||Denotes substrate failure with the bondline still intact|
|250 psi||Lap shear strength||Hi- Impact Acrylic||25°C||Denotes substrate failure with the bondline still intact|
|160 psi||Lap shear strength||Polystyrene||25°C|
|380 psi||Lap shear strength||ABS||25°C||Denotes substrate failure with the bondline still intact|
|300 psi||Lap shear strength||PVC||25°C||Denotes substrate failure with the bondline still intact|
|170 psi||Lap shear strength||SBR||25°C||Denotes substrate failure with the bondline still intact|
|340 psi||Lap shear strength||Polyurethane||25°C||Denotes substrate failure with the bondline still intact|
|320 psi||Lap shear strength||Glass||25°C||Denotes substrate failure with the bondline still intact|
|400 psi||Lap shear strength||Steel||25°C|
|360 psi||Lap shear strength||Aluminum||25°C|