SAE ARP4916

1 SCOPE
    1.1 Purpose
2 REFERENCES
    2.1 Applicable Documents
          2.1.1 SAE Publications
          2.1.2 ASTM Publications
          2.1.3 U.S. Government Publications
    2.2 Other References
    2.3 Definitions
3 GENERAL ENVIRONMENTAL AND HEALTH ASPECTS OF CLEANING
4 PERSONAL PROTECTIVE EQUIPMENT (PPE)
    4.1 Exhaust System, Local
    4.2 Extraction/ventilation system for extracting and
          neutralizing vapors from steam cleaning
    4.3 Eye Wash
    4.4 Face Shield, Safety
    4.5 Gloves, Disposable, Lint Free Cotton
    4.6 Gloves, Disposable (Butyl, Nitrile, Neoprene or
          Natural Rubber)
    4.7 Goggles, Chemical Safety
    4.8 Processing Equipment for Neutralizing Waste and
          Used Steam and Water Wash solutions and/or
          Recycling Cleaning Solutions
    4.9 Protective Clothing
    4.10 Respirator, Chemical Cartridge (with organic vapor
          cartridge)
    4.11 Respirator, Supplied air, With a Full Face Mask
    4.12 Emergency Showers
5 MASKING AND SURFACE PROTECTION MATERIALS
    5.1 Films
          5.1.1 Polyethylene Film
          5.1.2 Polyvinyl Chloride (PVC) Film (Vinyl Film)
          5.1.3 Polyester Film
          5.1.4 Nylon Film
          5.1.5 Fluorinated Perfluorethylene Propylene
                  (FEP) Film
    5.2 Pressure Sensitive Adhesive Tape
          5.2.1 Thermoplastic Film Tape
          5.2.2 Metal Foil Tape
          5.2.3 Radome Tape
    5.3 Masking Materials that Should Not be Used
          5.3.1 Used Materials
          5.3.2 Paper Based Materials
          5.3.3 Domestic or Office Supplies
6 CLEANING AGENTS
    6.1 Methyl Ethyl Ketone (MEK)
    6.2 Methyl Isobutyl Ketone (MIBK)
    6.3 Acetone
    6.4 Isopropyl Alcohol (IPA)
    6.5 Perchloroethylene
    6.6 Trichloroethylene
    6.7 1-1-1 Trichloroethane
    6.8 Citrus Based Cleaners
    6.9 Emulsion Type Cleaners
    6.10 Alkaline Detergent Cleaners
7 WIPE CLEANING CLOTHS
    7.1 AMS 3819 Cleaning Cloths
    7.2 Other Cleaning Cloths
    7.3 Cotton Swabs
    7.4 Cleaning Brushes
8 STEAM AND WATER WASH CLEANING EQUIPMENT
    8.1 Steam Cleaning Equipment
          8.1.1 Portable Equipment
          8.1.2 Fixed Equipment
    8.2 Hot Water Wash Equipment
          8.2.1 Steam Cleaning Equipment Used for Hot Water
                  Washing
          8.2.2 Hot Water Wash Equipment
          8.2.3 Manual Hot Water Equipment
    8.3 Cold Water Wash Equipment
9 VAPOR DEGREASING EQUIPMENT
10 WATER TYPES
    10.1 Water Used in Cleaning Operations
    10.2 Water for Water Break Testing
11 METHODS FOR MASKING AND PROTECTION OF CLEAN SURFACES
    11.1 Masking Method 1 - To Prevent Dirt and Moisture
          Entering the Damage During Temporary Continued
          Service
          11.1.1 Introduction
          11.1.2 Application Procedure
          11.1.3 Removal Procedure
    11.2 Masking Method 2 - To Prevent Dirt and Moisture
          Damage During Storage, Washing or Cleaning of the
          Part
          11.2.1 Introduction
          11.2.2 Procedure
    11.3 Masking Method 3 - Masking Around the Damage on an
          Uncleaned Part to Prevent Contamination from
          Uncleaned Areas and to Prevent Resin Spills
          11.3.1 Introduction
          11.3.2 Procedure
    11.4 Masking Method 4 - Masking of the Prepared
          Repair Area When it is Not Being Worked On
          11.4.1 Introduction
          11.4.2 Procedure
    11.5 Masking Method 5 - Masking to Prevent Excess Bleed
          Onto the Part
          11.5.1 Introduction
          11.5.2 Procedure
12 COMPOSITE CLEANING METHODS
    12.1 Composite Cleaning Method 1 - Steam Cleaning
          12.1.1 Introduction
          12.1.2 Procedure
    12.2 Composite Cleaning Method 2 - Hot or Cold Water
          Wash Pressure Spray Cleaning
          12.2.1 Introduction
          12.2.2 Procedure
    12.3 Composite Cleaning Method 3 - Hot or Cold Water
          Hand Wash Cleaning
          12.3.1 Introduction
          12.3.2 Procedure
    12.4 Composite Cleaning Method 4 - Wipe Cleaning Using
          Commercial Solvent - One Cloth Method
          12.4.1 Introduction
          12.4.2 Procedure
    12.5 Composite Cleaning Method 5 - Wipe Cleaning Using
          Commercial Solvent - Two Cloth Method
          12.5.1 Introduction
          12.5.2 Procedure
13 CLEANING HONEYCOMB CORE
    13.1 Honeycombe Cleaning Method 1 - Vapor Degreasing
          13.1.1 Introduction
          13.1.2 Procedure
    13.2 Honeycomb Cleaning Method 2 - Solvent Edge Dip
          13.2.1 Introduction
          13.2.2 Procedure
    13.3 Honeycomb Cleaning Method 3 - Solvent Wipe
          13.3.1 Introduction
          13.3.2 Procedure
    13.4 Honeycomb Cleaning Method 4 - Solvent Spray
          13.4.1 Introduction
          13.4.2 Procedure
14 WATER BREAK TEST
    14.1 Water Break Test Method
          14.1.1 Introduction
          14.1.2 Procedure

Gives methods of masking and cleaning commercial aircraft, epoxy and polyester matrix, composite parts before their entry into the composites shop, masking and cleaning of on-wing repair areas to prepare for carrying out repairs and wipe cleaning during repair and prior to bonding.

This SAE Aerospace Recommended Practice (ARP) describes methods of masking and cleaning commercial aircraft, epoxy and polyester matrix, composite parts prior to their entry into the composites shop, masking and cleaning of on-wing repair areas in preparation for carrying out repairs and wipe cleaning during repair and prior to bonding. If this document is used for the masking or cleaning of materials other than epoxy and polyester matrix thermosetting composite materials, the fitness for this purpose must be determined by the user.The methods of masking and cleaning described in this document have specific limited application and are not interchangeable. The methods shall only be used when specified in an approved repair procedure or with the agreement of the Original Equipment Manufacturer (OEM) or regulatory authority.The intention of the descriptions in this document is to describe materials and equipment generically in sufficient detail to allow a suitable commercial product to be purchased. It is not intended that the information provided be biased to any particular manufacturer and no commercial product is recommended in preference to any other.