TASK 70-11-04-300-503 The Procedure To Remove The Silicone Rubber From A Component

DMC:V2500-00-70-11-04-00A-251A-D|Issue No:004.00|Issue Date:2020-08-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 70-11-04-300-503 The Procedure To Remove The Silicone Rubber From A Component

To identify the consumable materials, refer to the Consumable Materials Index.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Non-Metallic ScraperLOCALNon-Metallic Scraper
Soft bristle brushLOCALSoft bristle brush

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-171 RUBBER DIGESTERLOCALCoMat 01-171
CoMat 01-172 SILICONE RUBBER REMOVER71361CoMat 01-172
CoMat 01-173 RUBBER DIGESTERX222XCoMat 01-173
CoMat 01-174 SILICONE RUBBER REMOVER01EJKCoMat 01-174
CoMat 01-277 KEROSINELOCALCoMat 01-277
CoMat 01-591 SILICONE RUBBER REMOVERD1940CoMat 01-591
CoMat 10-061 STODDARD SOLVENTLOCALCoMat 10-061

Spares

NONE

Safety Requirements

WARNING

IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE CONSUMABLE MATERIAL MANUFACTURER'S SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION (SUCH AS HAZARDOUS INGREDIENTS; PHYSICAL/CHEMICAL CHARACTERISTICS; FIRE, EXPLOSION, REACTIVITY, AND HEALTH HAZARD DATA; PRECAUTIONS FOR SAFE HANDLING; USE AND CONTROL MEASURES), AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.

Procedure

    1. SUBTASK 70-11-04-300-001 Remove the Silicone Rubber from a Part that is not made from Anodized Aluminum

      1. CAUTION

        MAKE SURE THAT THE PART IS PUT FULLY INTO THE RUBBER DIGESTER OR SILICONE RUBBER REMOVER.

        Remove silicone rubber from the part by one of the methods that follow:

        NOTE

        You must keep the tank closed to prevent the decrease of the remover in to the air.
      2. If necessary, degrease the part (refer to SPM TASK 70-11-03-300-503).

      3. Put the part into CoMat 01-277 KEROSINE for 8 to 12 hours at room temperature.

        NOTE

        It is permissible to increase or decrease the soak time, as necessary, based on experience.
    2. Remove and examine the part to make sure that there is no remaining silicone rubber.

    3. If the part is not free from compound, use a soft bristle brush or non-metallic scraper to remove as much compound as possible.

    4. Spray rinse part with cold or hot water.

      1. Put the part fully in hot water at a temperature of 150 to 200 deg F (66 to 93 deg C) until the temperature of the part increases sufficiently to flash dry.

      2. If the water on the part surface does not flash off when the part comes out of the hot water, then the time interval that the part stayed in the hot water was too short to increase the part temperature sufficiently.

    5. If necessary, blast to remove any remaining silicone rubber compound. Refer to SPM TASK 70-12-07-120-501.

    1. SUBTASK 70-11-04-300-003 Remove the Silicone Rubber from an Anodized Aluminum Part

      1. CAUTION

        1. MAKE SURE THAT THE PART IS PUT FULLY INTO THE RUBBER DIGESTER OR SILICONE RUBBER REMOVER.
        2. THE PART MUST NOT STAY IN CoMat 01-171 RUBBER DIGESTER OR CoMat 01-172 SILICONE RUBBER REMOVER FOR MORE THAN FOUR HOURS OR CoMat 01-173 RUBBER DIGESTER OR CoMat 01-174 SILICONE RUBBER REMOVER FOR MORE THAN TWO HOURS OR CoMat 01-591 SILICONE RUBBER REMOVER FOR MORE THAN FIVE HOURS. IF THESE TIMES ARE EXCEEDED, THEN DETERIORATION OR COMPLETE REMOVAL OF THE ANODIZED COATING IS POSSIBLE.

        Remove silicone rubber from the part by one of the methods that follow:

        NOTE

        You must keep the tank closed to prevent the decrease of the remover into the air.
      2. If necessary, degrease the part (refer to SPM TASK 70-11-03-300-503).

      3. Put the part into CoMat 01-277 KEROSINE for 8 to 12 hours at room temperature.

        NOTE

        It is permissible to increase or decrease the soak time, as necessary, based on experience.
    2. Remove and examine the part to make sure that there is no remaining silicone rubber.

    3. If the part is not free from compound, use a Soft bristle brush or Non-Metallic Scraper to remove as much compound as possible.

    4. Spray rinse part with cold or hot water.

      1. Put the part fully in hot water at a temperature of 150 to 200 deg F (66 to 93 deg C) until the temperature of the part increases sufficiently to flash dry.

      2. If the water on the part surface does not flash off when the part comes out of the hot water, then the time interval that the part stayed in the hot water was too short to increase the part temperature sufficiently.

    5. If necessary, blast to remove any remaining silicone rubber compound. Refer to SPM TASK 70-12-07-120-501.

    1. SUBTASK 70-11-04-300-005 Surface Protection for Bare Aluminum Surfaces

    2. If the part is aluminum, use TASK 70-38-02-200-502 to touch up all aluminum metal surfaces that show no anodized coating or chemical conversion coating.

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added CoMat 01-591. Deleted CoMat 07-028 and CoMat 01-061. (REA20VC174)

Change Type:

Revised Safety Requirements warning. (REA20VC174)

Manufacturer Code:01EJK
Enterprise Name:CHEMETALL DO BRASIL LTDA
BU Name:CHEMETALL DO BRASIL LTDA
Street:RUA LUIZ BENEZATO, 100
City:JARDIM ERMIDA II
State:JUNDIAI - SP
Zip Code:131212-161
Country:BRAZIL
Manufacturer Code:71361
Enterprise Name:DELETED, SEE VENDOR CODE 3MCT7
BU Name:DELETED, SEE VENDOR CODE 3MCT7
Manufacturer Code:D1940
Enterprise Name:CHEMETALL GmbH
BU Name:CHEMETALL GmbH
Street:TRAKEHNER STRASSE 3
P.O. Box:D-60487
City:FRANKFURT am MAIN
Country:GERMANY
Phone Number:49-6971-65-0
Fax Number:49-6971-65-3018
Internet:www.chemetall.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Manufacturer Code:LOCAL
Supply Number:CoMat 01-171
Type:sp01
Supply Short Name:CoMat 01-171 RUBBER DIGESTER
Supply Name:CoMat 01-171 RUBBER DIGESTER
Specification Groups:
Doc NumberType
CEE-BEE C-105 HF
Suppliers:
ManufacturerRemarks
LOCAL
3MCT7
K6835
U5702
Manufacturer Code:71361
Supply Number:CoMat 01-172
Type:sp01
Supply Short Name:CoMat 01-172 SILICONE RUBBER REMOVER
Supply Name:CoMat 01-172 SILICONE RUBBER REMOVER
Specification Groups:
Doc NumberType
CEE-BEE C-105 NC
Suppliers:
ManufacturerRemarks
71361
Manufacturer Code:X222X
Supply Number:CoMat 01-173
Type:sp01
Supply Short Name:CoMat 01-173 RUBBER DIGESTER
Supply Name:CoMat 01-173 RUBBER DIGESTER
Specification Groups:
Doc NumberType
WHERE COMAT 01-173 IS SPECIFIED WITH NO SUFFIX, USE COMAT 01-173A OR COMAT 01-173B
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:01EJK
Supply Number:CoMat 01-174
Type:sp01
Supply Short Name:CoMat 01-174 SILICONE RUBBER REMOVER
Supply Name:CoMat 01-174 SILICONE RUBBER REMOVER
Specification Groups:
Doc NumberType
ARDROX 2204
Suppliers:
ManufacturerRemarks
01EJK
0L040
K6835
K6858
Q2922
37127
B1082
SEE12
V243V
ZAS54
Manufacturer Code:LOCAL
Supply Number:CoMat 01-277
Type:sp01
Supply Short Name:CoMat 01-277 KEROSINE
Supply Name:CoMat 01-277 KEROSINE
Specification Groups:
Doc NumberType
OMAT: 101COMMERCIAL GRADE D.ENG.RD2494 MIL-T-5624 TYPE JP5
Suppliers:
ManufacturerRemarks
LOCAL
IE108
Manufacturer Code:D1940
Supply Number:CoMat 01-591
Type:sp01
Supply Short Name:CoMat 01-591 SILICONE RUBBER REMOVER
Supply Name:CoMat 01-591 SILICONE RUBBER REMOVER
Specification Groups:
Doc NumberType
ARDROX 2312
Suppliers:
ManufacturerRemarks
D1940
K6858
Manufacturer Code:LOCAL
Supply Number:CoMat 10-061
Type:sp01
Supply Short Name:CoMat 10-061 STODDARD SOLVENT
Supply Name:CoMat 10-061 STODDARD SOLVENT
Specification Groups:
Doc NumberType
PMC 9001MIL-PRF-680, TYPE II
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Non-Metallic Scraper
Tool Name:Non-Metallic Scraper
Manufacturer Code:LOCAL
Tool Number:Soft bristle brush
Tool Name:Soft bristle brush