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Safety Glasses - Maintenance

 Texas America Safety Company
Safety Glasses - Maintenance
ANTI-SCRATCH LENS (HARD COATED)
  • GENERAL
    • Coated with silicone-based permanent hard coating
    • Coating will not wash off
    • Protect against most solvents and chemicals
    • Easily cleaned and sanitized
    • Not affected by metalization (mirror lens)
  • PRIMARY PROPERTIES
    • Permanent coatings show no loss of anti-scratch properties for a minimum of two years
    • Anti-scratch coating does not affect the optical characteristics of the lens
    • Provide abrasion resistance to pencil hardness of 8H
    • Completely unaffected by the following chemicals or solvents:
      • Low and high molecular weight alcohol
      • Glycol ethers
      • Aliphatic and aromatic solvents
      • Weak alkali/alkaline earth solutions
      • Mineral acids and exception of hydrofluoric acid
  • CLEANING AND DISINFECTING METHODS
    • Wipe clear with a dry clean soft cloth
    • Clean with soap (mild detergent) and water
    • Pad dry with clean lint free cloth
    • Disinfect with the following methods: (does not affect coating)
      • General disinfectant
      • UV light germicide chamber
      • Placed at 100 degrees C for one hour

PRODUCT MATERIALS: POLYCARBONATE
  • GENERAL
    • Colorless and crystal clear; amorphous engineering thermoplastic – notable for high impact resistance
    • Originally developed for aerospace industry for use in windows of jets, space shuttles and face shields for astronaut helmets
    • PC (polycarbonate) is very soft material allowing absorption of energy from an impact without cracking or breaking. The drawback of this feature is the tendency to scratch or craze easily; therefore, most PC lenses are treated with anti-scratch coating.
    • Extremely light-weight due to its low 1.2 specific gravity
    • Although seldom used for frame material, PC is more impact resistant than nylon
  • PRIMARY PROPERTIES
    • Optical characteristics:
      Light transmission 88.0 % astm d 1003
      Haze 1.0 astm d 1003
      Refractive index 1.586 astm d 542
    • UV stabilized; won't become brittle and dry out after exposure to sunlight
    • Filters out 99.9 % of harmful UV radiation
    • Ability to add UV 400 absorber, giving extra UV protection for environments with high levels of ultraviolet radiation
  • CHEMICAL RESISTANCE:
    Acids - concentrated --- Fair
    Acids - diluted --- Good
    Alcohols --- Good
    Alkalis --- Poor
    Aromatic hydrocarbons --- Poor
    Oils and greases --- Good
    Halogens --- Poor
    Ketones --- Poor
    ***Please note that chemical resistance is greatly increased when coated with anti-scratch coating.

PRODUCT MATERIALS: NYLON
  • GENERAL
    • Nylon frames are generally tough, strong, and resilient polymers
    • Nylons offer high fatigue and good barrier properties
    • Nylons offer good abrasion resistance
    • They offer good resistance to greases, oils, and solvents
    • The most common nylon used in safety glass frames is Nylon 6.6
  • PRIMARY PROPERTIES
    • Permanent coatings show no loss of anti-scratch properties for a minimum of two years
    • Anti-scratch coating does not affect the optical characteristics of the lens
    • Provide abrasion resistance to pencil hardness of 8H
    • Completely unaffected by the following chemicals or solvents:
      • Low and high molecular weight alcohol
      • Glycol ethers
      • Aliphatic and aromatic solvents
      • Weak alkali/alkaline earth solutions
      • Mineral acids and exception of hydrofluoric acid
  • CLEANING AND DISINFECTING METHODS
    • Wipe clear with a dry clean soft cloth
    • Clean with soap (mild detergent) and water
    • Pad dry with clean lint free cloth
    • Disinfect with the following methods: (does not affect coating)
      • General disinfectant
      • UV light germicide chamber
      • Placed at 100 degrees C for one hour

Texas America Safety Company
  4400 Danhil Drive
  Brownwood, TX 76801
 
  Toll Free 1-800-646-5346
  Outside US 1-325-646-5346
  Local 325-646-5346
  Fax 1-325-646-3790
sales@tasco-safety.com

 

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