Henkel Lite-Lok 495

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Description for Henkel Lite-Lok 495

• Light Curable Adhesive • Structural Bonding of Plastics • Sealing of Plastic Assemblies • Fast cure under UV-A light • 100 % solids, no solvents or by-products upon curing • Good thermal cycling resistance • Hard, tack free cured surface • Versatile adhesion • High strength and durable • Excellent water and detergent resistance •<br/>

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Brand	Bondmaster
Chemical Resistance	Good detergent resistance, Carpet and floor cleaner solutions
Application Type	Bond, Seal, Adhesive: Instant Adhesives
1 Part or 2 Part	1-Part
Material Form	Liquid
Substrate	Acrylic, Plastics, Polycarbonate, PVC, Polyolefins
Industry	Carpet
Manufacturer	Henkel
Chemistry	Acrylate Mixture
Cure Method	UV
Cure Time (min)	Fast, 0.02 to 0.05
Viscosity (cPs)	35,000
Color	Clear light yellow, Clear light yellow
Other Resistance	Good thermal cycling resistance

Best Practices for Henkel Lite-Lok 495

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Technical Data for Henkel Lite-Lok 495

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Overview

Chemical Resistance
- Chemical Resistance - Good detergent resistance, Carpet and floor cleaner solutions
Application Type
- Adhesive - Bond
- Adhesive : Instant Adhesives
- Sealant - Seal
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
Substrate
- Polyolefin - Polyolefins
- Plastic - Plastics
- Acrylic (PMMA) - Acrylic
- Polycarbonate
- Polyvinyl chloride (PVC) - PVC
Industry
- Carpet
- Drug/Pharmaceutical - Detergent, Floor cleaner solutions
Chemistry
- Acrylic - Acrylate Mixture
Application Method
- Dispenser - Piston pump dispensing system, Pressure pot
Cure Method
- UV / Visible Light - UV
Color
- Clear / Transparent - Clear light yellow
- Yellow - Clear light yellow
Brand
- Bondmaster

Specifications

Cure Specs

Cure Time (min)	Fast, 0.02 to 0.05
Viscosity (cPs)	35,000	Test Method

Bond Strength

Structural/Load-Bearing	Strutural
Impact Strength (psi)	Impact strength

Material Resistance

Impact Resistance	Good impact resistance
Moisture/Humidity Resistance	Good water resistance
Other Resistance	Good thermal cycling resistance

Other Properties

Specific Gravity	1.070
Flash Point (°F)	>212.0
% Solids (%)	100

Business Information

Shelf Life Details	Uncured, A shelf life of six months when stored at 2°C-27°C (35°F-80°F).
Shelf Life Temperature (°F)	68, 36 to 81
Shelf Life (mon)	6, 6

Best Practices for Henkel Lite-Lok 495

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1. Surface Preparation
  
  LITE-LOK 495 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 495 is best applied by extruding the product onto the substrate to be bonded using a 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 495 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 495 is exposed to high intensity UV-A light. The peak reactivity of the product is from exposure to light of wavelength 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 495 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.
Comparable Materials for Henkel Lite-Lok 495

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Spec Engine^® Results
- Product 369(Henkel)
  A single component multicure structural UV adhesive featuring superior temperature resistance when bonding rigid metal, ceramic or thermoset plastic materials.
- Ultrabond 787(Hernon)
  A one component, thixotropic adhesive, which cures when exposed to ultraviolet radiation and/or visible light of sufficient intensity. It has also shown excellent adhesion to a wide variety of substrates including glass, many plastics and most metals.
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