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1、W a I rAME C P I T O L OIVIEIOC. SEALER - WELD THROUGH, EXPANDING HOT MELT FISHER BODY I GENERAL DESCR I PT1 ON THIS SPECIFICATION DETAILS THE PERFORMANCE REQUIREMENTS FOR A HIGH SOLIDS, SEALANT THAT WILL EXPAND AND CURE UNDER OVEN HEATS AND THERERY EFFECT A WATER AND DUST PROOF SEAL* THE MATERIAL M
2、UST ADHERE TO PLAIN OILY STEELJ ZINCROHETAL AND GALVANIZED SUBSTRATES* THE MATERIAL SHALL RE CAPABLE OF BEING DISPENSED THROUGH P u r m AND MANIFOLD SYSTEMS WITHOUT ADVERSELY AFFECTING ITS PROPERTI ES THE MATERIAL MIJST BE HOMOGENEOUS AND FREE OF LUMPS AND UNMIXED PARTICLES. THE UNCURED MATERIAL MUS
3、T BE WELDTHROUGY AND FLAME RESISTANT. THE MATERIAL MUST WITHSTAND PRODUCTION PHOSPHAT1 NG SYSTEMS, ELPO, UNIPRIME AND RAKE TEMPERATURES UP TO 1 9 6 O C . THE SEALANT MUST NOT E ADVERSELY AFFECTED BY HUMIDITY, SALT SPRAY, OR AGING. THE MATERIAL MUST HAVE A SERVICE TEMPERATURE OF 177OC. I I APPLICABLE
4、 TEST METHODS T M 45-2 1.l 54-21 TY 45-73 TPi 45-16 MDS-178 TM 45-123 TM 45-26 TM 45-72 TM 45-84 TM 45-30 TM 45-82 TP“, 45 I I I . DETAIL REQU I REMENTS A. ODOR (PI 45-73) THE SEALER MUST NOT HAVE A TOXIC OR NOXIOUS ODOR, AND SHALL NOT HAVE ANY ADVERSE EFFECTS ON PERSONNEL HANDLING I T - I T ALSO MU
5、ST NOT HAVE AN ODOR WHICH I S PERCEPTIRLE AFTER CUR1 NG- B. TOXICITY THE TOXICITY SHALL RE DISCLOSED IN KIND AND MAGNITUDE AS REQUIRED BY THE GYI MATERIAL SAFEV DATA SHEET. IN ADDITION, THE MATERIAL MUST HAVE FULL APPROVAL OF THE APPROPRIATE MEDICAL DEPARTMENTS BEFORE PRODUCTION USE- I I 1 1 I I I C
6、opyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,- NO GENERAL MOTORS CORPORATION 9982156 m S V M . bAME SEALER - W
7、ELD THROUGH) EXPANDING HOT MELT C. D. E. F. G. H. STAPI I ITY (TM 45-21 1 1- ELEVATED TEMPERATURE STABILITY - AS SH!PPEDJ THE SEALANT MUST RE CAPARLE OF WITHSTANDING A TEMPERA TURE OF 54C FOR 72 HOIJRS WITHOUT DELETERIOUS EFFECTS 2. LOW TEMPERATURE STARILITY - AS SHIPPED) THE SEAL ANT MUST BE CAPABL
8、E OF WITHSTANDING THREE CYCLES OF THE APPLICARLE CYCLE SCHEDULE OUTLINED I N PARAGRAPHAPH A2 OF THE TEST METHOD. SHALL BE 90 DAYS AT A TEMPERATURE OF 35C. SHELF 3. STORAGE STARILITY - THE SHELF LIFE OF THE MATERIAL LIFE COMMENCES UPON RECEIPT OF MATERIAL FROM THE MANUFACTIJRER. MATER1 AL CONDITIONED
9、 AS AROVE MUST BE ABLE TO PASS ALL REQUIREMENTS OF THIS SPECIFICATION- SOLID COWTEWT (TK 45-2) 952 M I N I MUM VI SCOS ITY TO E DETERflINED- SPECIFIC GRAVITY 1.1 2 0 1 SMOKE TEST ( T M 45-84 WHEN TESTED IN CONFORMANCE WITH TM 45-84 J THE SEALER SHALL NOT SMOKE UP TO 177C AND SHALL NOT RATE ANY WORSE
10、 THAN A SLIGHT WFI DABII I T Y (MDS-178) THE MATERIAL MUST NOT CAUSE EXCESSIVE FLASHING) MUST SMOKER AT 191 C- NOT BE DETRIMENTAL TO ELECTRODE T I P LI FE) AND MUST MEET THE WELD REQUIREMENTS AS OUTLINED I N THE TEST METHOD- L Copyright General Motors North America Provided by IHS under license with
11、 GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 8 0 8 I I NO NAME SEALER - WELD THROUGH, EXPAND1 NG HOT MELT I BEFORE BAKE CHARACTER I ST I CS 1 WASH OFF RESISTANCE (Tl 45-30) - No
12、LOSS OF 2- FLAME RES I STANCE (TM 45-30) - THE SEALER SHALL BE SELF EXTINGUISHING FOR 50 PASSES OF THE FISHER J AFTER BAKE CHARACTER I STICS (TM 45-30, TM 45-72 OR MATER I AL BURNER FLAME T l ? 43-123 PROCEDURE B 1. 2. 3. 4. 5. 6- ADHES I ON - THE SEALANT MUST MAINTAIN ADHESION TO OILY STEEL, ZINCRO
13、METALJ AND GALVANIZED METAL BOTH DURING AND AFTER OVEN BAKE THE ADHESIVE STRENGTH OF THE SEALER r w T BE GREATER THAN I T S COHES I VE STRENGTH AGING - THE CURED MATERIAL SHALL NOT SOFTEN , LOSE ADHESION, NOR DRY OUT OR RECOME BRITTLE WHEN AGED AT 70C FOR 21 DAYS. HUMIDITY - THE CURED MATERIAL SHALL
14、 NOT SOFTEN NOR LOSE ADHESION WHEN SURJECTED TO 38“C/100% R.H. FOR 21 DAYS. CORROSION OF THE METAL SURFACE SALT SPRAY - THE OPEN ASSEMBLIES SHALL NOT SHW UNDERNEATH THE READ I S NOT ALLOWED. ANY LOSS OR BREAKDOWN OF SEALER NOR SHOW ANY MORE I ON THAN A SLIGHT AMOUNT OF CORROSION AFTER 14 DAYS EXPOSU
15、RE. THE CLOSED ASSEMBLIES SHALL NOT SHOW ANY CORROS CORROSION CYCLE (54-21 1 - AFTER 30 CYCL ES, NO RESILIENCY - AT ROOM TEMPERATURE, AND AT -29“C, MIGRATION* CORROSION RENEATH SEALER IS ALLOWED. A CURED BEAD OF THIS SEALER MUST RETURN TO ITS ORIGINAL SOLID HE1 GHT AND HELD FOR 15 SECONDS- HEIGHT W
16、I T H I N 30 MINUTES AFTER BEING COMPRESSED TO Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,- -1 1 NO I MAME
17、SEALER - WELD THROUGH, EXPANDING HOT MELT K. L. M. N. 0. COI D SHOCK (TM 45-16) THE MATERIAL MUST WITHSTAND TWO 2.82 JOULE IMPACTS AT 25C AND -29OC. SAG CHARACTERISTICS (TM 45) NO SAG DUR1 NG A I F! DRY AND RAKE CYCLE NO SLID1 NG OF MATERIAL ON METAL SURFACE ALLOWED. EXPANS I ON CHARACTER I ST I CS
18、(Tl1 45-26) THE EXPANS ION SPECIMENS SHALL RE PREPARED AS OUTLINED IN TM 45-26 PROCEDURE A AND SUBJECTED TO OVEN HEATS AS OUTLINED I N Tl 45-71 OR 45-123 PROCEDURE B. THE MATERIAL MUST EXPAND 120x FIINIMUM* THE CELL STRUCTURE SHALL RE SMALL IN SIZE AND UNIFORM I N TEXTURE* HIGH HEGT CORROSION 1. APP
19、LY THREE READS OF SEALER, 35 HN WIDE X 2.5 MM HIGH x 180 MM LONG, TO THE SURFACE OF AN OILED PLAIN STEEL PANEL ( INSPECT PANEL TO RE SURE THE SURFACE IS FREE OF CORROSION) BAKE PANEL ACCORD- I N G TO 45-71 PROCEDURE B OR 45-72 PROCEDURE B. 2. SURJECT PANEL TO 196C FOR ONE HOUR, REMOVE FROM 0VEP.I AN
20、D ALLOW PANEL TO COOL TO ROOM TEMPERATURE. 3 SUBJECT PANEL TO 38“C/100% R.H. FOR ONE WEEK. 4. REMOVE PANEL FROM HUMIDITY AND CHECK METAL SURFACE UNDERNEATH READ. THERE SHALL NOT RE ANY CORROSION ON THE PANEL SURFACE* SUSTA I NFD HFAT CORROS I ON 1. APPLY THREE READS OF SEALER, 35 HM WIDE X 2-5 MM HI
21、GH x 180 MM LONG, TO THE SURFACE OF AN OILED PLAIN STEEL PANEL. (INSPECT PANEL SURFACE TO RE SURE I T I S FREE OF CORROSION) BAKE PANEL ACCORD- I N G TO Tfl 45-71 PROCEDURE B OR TF? 45-72 PROCEDURE B. Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees
22、/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,- UAME SEALER - WELD THROUGH, EXPANDING HOT MELT 0. SUSTAINED HEAT CORROSION (CONTD) 2. SUBJECT PANEL TO THE FOLLOWING BAKE CYCLE: A. 17 HOURS a 177C B* 7 HOURS a
23、ROOM TEMERATlRE C 17 HOURS a 177C. REMOVE PANEL FROll OVEN AFD COOL T O RW TEMPERATURE- 3. SUBJECT PANEL TO 38“C/lOOZ Re H. FOR 7 M Y S - 4. REMVE PANEL FROM HUMIDITY AND CHECK W A L SURFACE UNDERNEATH BEAD THERE SH5L NUT BE A N Y CORROSION ON THE PANEL SURFACE P TENSILE STRENGTH (TM 45-82, TM 45-7l
24、 PROCEDURE B, TM 45-72 PROCEDURE B) 1. TENSILE STRENGTH K T E R WPOSIRE TD THE NCMINPL BAKE OF EITHER 45-71 OR 45-72 AND 24 HOUR RECWEW MUST BE 10 PSI MINIMUM. 2. TENSILE STRENGTH / W E R EXPOSURE TO THE NOMINAL BAKE oi: EITER 45-71 OR 45-72 AND 14 M Y S EXPOSURE T O 70C MUST BE 10 PSI MINIMUM. I V
25、* SUPPLEENTARY INFORMATION A. INITIAL SOURCE A P P R O V NO SHIPENT SHGL E MADE B Y ANY SUPPLIER UNTIL A SUBMISSION OF REPRESENTATIVE INITIAL PRODUCTION SAMPLES x) Tt PIRCHASERS LABORATDRY AFD/OR ENGINEER1 NG DEPARlENT HAS BEEN APPROVED AS MEETING THE REQUIRWNTS OF THIS SRCIFICATION Copyright Genera
26、l Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,- I I NO NAME SEALER - WELD THROUGH, EXPANDING HOT MELT B. INSPECTION AND RFJECT
27、ION ALL SHIPMENTS OF MATERIAL OR PARTS UNDER CONTRACT OR APPROVED RY THE PURCHASER. THERE SHALL RE NO CHANGES PURCHASE ORDER MANUFACTIJRED TO THIS SPECIFICATION SHALL BE EQUIVALENT I N .EVERY RESPECT TO THE INITIAL SAMPLES I N EITHER FORtlULATION OR MANUFACTURING PROCESSES PERMITTED WITHOUT PRIOR NO
28、TIFICATION AND APPROVAL RY THE PURCHASER. LACK OF NOTIFICATION BY THE SUPPLIER CONSTITUTES GROUNDS FOR REJECTION OF ANY SHIPMENT. WHILE SAMPLES MAY BE TAKEN FROM INCOMING SHIPMENTS AND CHECKED FOR CONFORMANCE TO THIS SPECIFICATION, THE SUPPLIER SHALL ACCEPT THE RESPONSIAILITY FOR INCOMING SHIPMENTS
29、MEETING THIS SPECIFICATION WITHOUT DEPENDENCE UPON PURCHASERS INSPECTION. C. APPROVED SOURCFS ENGINEERING QUAL1 FICATION OF AN APPROVED SOllRCE IS REQUIRED FOR THIS SPECIFICATION- ONLY SOURCES LISTED I N THE G-M* CORPORATE MATERIAL FILE UNDER THIS SPECIFICATION NUFlER HAVE REEN QUALIFIED BY THE CONT
30、ROL DIVISION AS MEETING THE REQUIREMENTS OF THIS SPECIFICATION. Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:12:23 MDTNo reproduction or networking permitted without license from IHS -,-,-