1、This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2011 by Navistar Inc. JUNE 2011 Page 1 of 4 NAVISTAR INC. TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-6
2、907 TITLE: Sealer, Butyl Rubber, Gun Grade CURRENT REV No.: 1106 DATE: June 2011 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: Rev. 0912 December 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazard
3、ous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use. Change Notice: R
4、einstated from Void status; replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive; added CEMS B-50 requirement; changes to test methods and requirements; editorial changes. Reference: File 30-1 Keywords: Sealer; Butyl Rubber; Cab Seal 1.0 APPLICATION Thi
5、s specification covers two types of gun grade sealers compounded of polymerized butyl elastomer and resins. These sealer types are generally used as joint sealers on the fire wall and/or in cab body joints of steel and/or aluminum cabs. 2.0 SCOPE This specification covers general requirements, compo
6、sition, physical properties, source approval and quality control. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification. 3.0 REFERENCE DOCUMENTS Unless otherwise sp
7、ecified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 CEMS B-50 TMS-9013 CFR Title 29, Section 1910 FMVSS 302 CEMS G-5 Pt II NAVISTAR Manufacturing
8、Std. MS-D-13 SAE J243 CEMS GT-31 NAVISTAR Eng. Design Std. A-16 SAE J250 TMS-9543 4.0 GENERAL REQUIREMENTS 4.1 Description The material is a one part sealant containing butyl rubber, which produces a tough rubbery seal that retains its adhesion and flexibility throughout its service life. Type I is
9、a UV stable sealant. Type II is not UV stable and is intended for use only in those applications where UV stability is not a requirement. 4.2 Composition This material shall be compounded with a minimum of 80% solids, made up of polymerized butyl elastomer, resins, inert pigment and fibers, with the
10、 addition of solvents as required. Materials NUMBER: TMS-6907 TITLE: Sealer, Butyl Rubber, Gun Grade REVISION: 1106 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent l
11、iability. 2011 by Navistar Inc. JUNE 2011 Page 2 of 4 intended for use prior to entering the top-coat booth shall not contain any chemicals that may adversely affect the paint application process. 4.3 Physical Properties 4.3.1 Consistency Shall be a smooth paste that is easily gunnable at 21C (70F)
12、and above, being capable of application from a drum with a follower plate. 4.3.2 Viscosity 4.3.2.1 Method: Pressure Flow Method per SAE J243. 4.3.2.2 Required: Report value. 4.3.3 Shrinkage 4.3.3.1 Method: Fill a metal cylinder 47.6 mm (1-7/8 in) diameter and 12.7 mm (1/2 in) deep and test aged 96 h
13、ours at 82C (180F). Perform in triplicate. 4.3.3.2 Required: There shall be only slight concavity in center mass and shall not pull away from edge of the cylinder. 4.3.4 Service Temperature Shall remain flexible and show no loss of adhesion or cracking when exposed to service conditions of -29 to 82
14、C (-20 to 180F). 4.3.4.1 Cold Resistance 4.3.4.1.1 Method: Methods 1 and 2 per SAE J250 performed at -40C. Perform in triplicate. 4.3.4.1.2 Required: Shall not crack, show signs of embrittlement or loss of adhesion. 4.3.4.2 Heat Stability 4.3.4.2.1 Method: Stability Method 2 per SAE J250 applied to
15、a painted panel. 4.3.4.2.2 Required: Shall not flow, crack, leach oil, lose adhesion, or emit offensive odors. 4.3.5 Water resistance 4.3.5.1 Method: Apply to a painted panel. Immerse separate panels vertically in water and 5% Sodium Chloride solution 72C for 24 hrs. 4.3.5.2 Required: Shall not lose
16、 adhesion or dissolve. 4.3.6 Sag 4.3.6.1 Method: Apply sample along centerline of E-coat primed panels in a 3 x 25 x 200 mm (1/8 x 1 x 8 in) bead. Scribe panels to mark initial material location. Incline panel at a 90 angle with bead horizontal and hold for 48 minutes at 25C (77F). Measure any movem
17、ent from scribe. 4.3.6.2 Required: Sealant/adhesive will flow a maximum of 3mm (1/8in). 4.3.7 Aged Adhesion 4.3.7.1 Method: Aged adhesion per SAE J250, except substitute -40C for -29C (-20F) in the cycle. 4.3.7.2 Required: Shall fail cohesively, remain pliable, and shall not crack. 4.3.8 Odor Shall
18、not emit any offensive odors during testing and during service. 4.4 Special Requirements 4.4.1 Oven temperature stability Required for materials intended to be applied prior to entering the top-coat booth. Material provided must be capable of withstanding oven temperatures experienced during paint b
19、ake cycles. NUMBER: TMS-6907 TITLE: Sealer, Butyl Rubber, Gun Grade REVISION: 1106 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2011 by Navistar Inc. J
20、UNE 2011 Page 3 of 4 4.4.1.1 Method: Sag characteristics per SAE J250. Bake according to the nominal and over-bake production bake schedules. Perform in triplicate. 4.4.1.2 Required: Shall not sag, burst, or pull away from any of the metal surfaces. 4.4.2 Bleeding / Staining Required for materials i
21、ntended to be applied over top-coat. 4.4.2.1 Method: Apply to separate panels painted with NAV9219 in CEMS G-5 Part II Grades 17, 18, and 19. Age at 60C for 3 weeks. 4.4.2.2 Required: Shall not cause stain or discoloration of the paint finish. 4.4.3 Pre-Treat and E-coat systems compatibility Materia
22、ls intended to be applied during the cab assembly process are required to meet TMS-9013. 4.4.4 Weather Resistance - Type I Only 4.4.2.1 Method: Apply a 50mil film to two white panels painted with NAV9219. Expose the sealer to 500 hrs of accelerated weathering per CEMS GT-31 methods C and D. 4.4.2.2
23、Required: Shall show no evidence of crazing, cracking, loss of adhesion, ozone deterioration or bleed/stain the adjacent area. 5.0 ADDITIONAL REQUIREMENTS 5.1 Quality All product supplied shall be clean and free from dirt, oils, contamination, or defects harmful to product performance. 5.2 Storage L
24、ife This material shall have a storage life of no less than 90 days when stored at a temperatures less than 32C (90F) without thickening or having a deleterious effect on the performance of the product. Agreements must be made between the supplier and user as to satisfactory storage life of the mate
25、rial in the event longer storage periods or special storage environments are required. 5.3 Qualification Approval Material and processes submitted for approval to this specification shall include the following: 5.3.1 A detailed, signed test report documenting testing to this specification per TMS-95
26、43. 5.3.2 Test coupons or photographs showing failure modes for each test. 5.3.3 The complete procedure used for preparing and curing materials for test, especially surface preparation and condition of the test coupons. 5.3.4 Adhesive, substrate and any chemicals used for bonding. 6.0 SOURCE APPROVA
27、L AND QUALITY CONTROL 6.1 Supplier Requirements All suppliers to Navistar are required to be registered to ISO 9001 Quality System Requirements. Navistar will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and
28、 approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Navistar Corporate Buyer upon request. 6.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be eq
29、uivalent in all respects to those samples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, NUMBER: TMS-6907 TITLE: Sealer, Butyl Rubber, Gun Grade REVISION: 1106 This document is
30、 restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2011 by Navistar Inc. JUNE 2011 Page 4 of 4 processing practices, construction, color, or labeling of the product are requ
31、ired, the supplier shall notify Materials Engineering, Truck Development and Technology Center and Navistar Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended or updated Material
32、Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. 6.3 Process Control The supplier shall either perform and/or report results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guidelines, or provide statistica
33、l evidence of the lot having been produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using plant may determine testing and reporting requirements on specifi
34、c products. 7.0 SHIPPING, PACKING AND IDENTIFICATION Loading, packing, and identification shall be in accordance with Manufacturing Std. MS-D-13. 8.0 DESIGNATION ON DRAWINGS Example: TMS-6907 Type I Sealant 9.0 APPROVED SOURCES Manufacturer & Product Code Type Pre-Treat and E-coat systems compatible Y/N Max temp stability intermittent exposure C (F) Report Number
