NAVISTAR MPAPS K-6928-2016 Sealant Preformed Patches.pdf

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. 2016 Navistar Inc. OCTOBER 2016 Page 1 of 7 NAVISTAR, INC. Material, Parts, and Process Specifications (MP

2、APS) NUMBER: MPAPS K-6928 Former Designation: TMS-6928 TITLE: Sealant, Preformed Patches CURRENT REV No.: 1610 DATE: Oct. 2016 WRITTEN/EDITED BY: S. Brailey/ W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. 1608 August 2016 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This sp

3、ecification may involve hazardous 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

4、prior to use. 1.0 APPLICATION This specification outlines the requirements of three types of preformed sealant patches. All types will be supplied in precut shapes and sizes as described on the engineering drawing. When applicable, mass per unit area* (See Section 3.1), will also be specified on the

5、 engineering drawing. 2.0 SCOPE This specification covers the general requirements, property and performance requirements, quality, source approval and quality control. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must c

6、omply with the requirements of the MPAPS B-50 specification. 3.0 REFERENCE DOCUMENTS Unless otherwise specified the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or

7、 TS-16949 SAE J243 CFR-Title 29, Section 1910 SAE J912 NAVISTAR Supplier Packing and Shipping Std. D-13 SAE J1679 NAVISTAR Eng. Design Std. A-16 ASTM B117 NAVISTAR MPAPS B-50 ASTM D5 NAVISTAR MPAPS P-9543 ASTM D792 NAVISTAR MPAPS B-6815 ASTM D2247 NAVISTAR MPAPS G-9013 ASTM G53 3.1 Description of ty

8、pes 3.1.1 Type I: This is an extrudable EPDM based sealer to be used in conjunction with mechanical fastening devices such as bolts, studs, rivets, stamped nuts, etc., and is intended to serve as a sealant against moisture, dust and air intrusion. NUMBER: MPAPS K-6928 TITLE: Sealant, Preformed Patch

9、es REVISION: 1610 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. 2016 Navistar Inc. OCTOBER 2016 Page 2 of 7 3.1.2 Type II: This is a constrained layer,

10、elastomeric-based sealant patch used on body panels or drain hole cover plates to bridge and seal openings in cab construction. This type possesses a minimum, mass per unit area*, sufficient to prevent noise, moisture, dust and air intrusion through cab openings. 3.1.3 Type III: This type is an extr

11、udable, pressure sensitive, mastic used as a noise and vibration dampening constraining layer. It also possesses a minimum, mass per unit area*, sufficient to provide noise and vibration dampening. 3.1.4 Type IV: Same as Type I, but having a mastic/pressure-sensitive-adhesive (PSA) backing. 3.1.5 *

12、Definition: as used herein the term, Mass per Unit Area*, is defined as the product of, the material density and (part) thickness and is numerically equal to the weight or mass of the part divided by its surface area. It is intended to provide a minimum and consistent level of sound attenuation for

13、each part or sealant patch. 4.0 GENERAL REQUIREMENTS The materials shall be smooth and homogenous mixtures, free of air, lumps, unmixed particles and foreign materials. They will be compatible with all NAVISTAR paint shop operations. In all cases, the bonded adhesive strength shall exceed the cohesi

14、ve strength of the sealant. 4.0.1 Type I however these values may be adjusted to meet mass requirements 4.1.3. 4.1.3 Mass per Unit Area* (Types II & III only) The mass per unit area* will be specified on the engineering drawing. Mass per unit area* must be reported by the supplier at time of initial

15、 material submission for approval and shall thereafter be maintained within 10% of approved sample value. NUMBER: MPAPS K-6928 TITLE: Sealant, Preformed Patches REVISION: 1610 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Techni

16、cal Standards. Suppliers are required to assume all patent liability. 2016 Navistar Inc. OCTOBER 2016 Page 3 of 7 4.1.4 Odor It shall be the suppliers responsibility to determine that the constituent materials and finished product are deemed to be non-objectionable and meet all safety standards. 4.1

17、.5 Compatibility With Sheet Metal Processing Lubricants (Type II & III only) 4.1.5.1 Method: Prepare panels for adhesion testing as per MPAPS B-6815 using approved lubricants. After coated panel has dried for 24 hours, apply a 15 cm long section of the extrusion to the panel. Age the panel for 30 mi

18、nutes at 204 C and let cool. 4.1.5.2 Required: The adhesion shall be greater than the cohesive strength of the material when an attempt is made to peel or strip the extrusion from the prepared panel. 4.1.6 Penetration 4.1.6.1 Method: ASTM D5 Penetration Method, 100g T.M.L., 5 sec, 25 1 C 4.1.6.2 Req

19、uired: 2.0 15.0 mm 4.1.7. High Temperature Stability 4.1.7.1 Method: Prepare five production representative samples and age as described in Table 1 for body, paint shop or trim line applications. Heat age samples in a mechanical convection oven for 336 hr at 70 2 C. 4.1.7.2 Required: Material shall

20、not flow, crack, and show loss of flexibility or other indications of degradation. Additionally, material shall not shrink greater than 5%. 4.1.8 Low Temperature Stability 4.1.8.1 Method: Prepare five production representative samples and age as described in Table 1 for body shop, paint shop or trim

21、 line applications. Age samples for 336 hr at -29 2 C. 4.1.8.2 Required: Material shall not crack or show other indications of degradation. 4.1.9 Environmental Aging (Type I & IV only) 4.1.9.1 Method: Perform 250 hours QUV-B (FS40 bulbs) test as per ASTM G53. Cycle = 8 h UV 60 2 C 4 h dark condensin

22、g humidity 50 2 C repeat cycle for test duration. 4.1.9.2 Required: Material shall not flow, crack, show loss of flexibility, show loss of sealing capabilities, or other indications of degradation. Additionally, sealant shall cause no discoloration to painted surfaces and compare favorably with the

23、adjoining painted metal surface where no sealant has been applied. 4.1.10 Corrosion (Type I & II only) 4.1.10.1 Method: Prepare five production representative samples and age as described in Table 1 for body shop, paint shop or trim line applications. Test per ASTM B117 salt spray test for 240 hours

24、. 4.1.10.2 Required: Material shall not flow, crack, show loss of flexibility, show loss of sealing capabilities, or other indications of degradation. NUMBER: MPAPS K-6928 TITLE: Sealant, Preformed Patches REVISION: 1610 This document is restricted and may not be sent outside Navistar Inc. or reprod

25、uced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar Inc. OCTOBER 2016 Page 4 of 7 4.1.11 Blocking (Type I & IV only) 4.1.11.1 Method: Test per SAE J912. Expose samples for 72 hours at 54 C under 500g load. 4.1.11.2 Required

26、: The material shall show no evidence of adhering, exuding or permanent damage upon rapid separation. 4.1.12 Product Application (Type II & III only) The product shall adhere to metal, paint, e-coat, or plastic surfaces at temperatures between 16-38C. 4.1.13 Staining (Type II & III only) 4.1.13.1 Me

27、thod: Apply sealant on a typical steel or aluminum test panel and spray paint as per MPAPS G-5, Grade -19HS (white) and cure paint for 30 minutes at 121 C. Subject panel to 250 hours of simulated weathering per ASTM G-53, using the following repetitive cycle: 8 hours UV (UVB-FS40) at 60 C 4 hours co

28、ndensing humidity at 50 C 4.1.13.2 Required: Sealant shall cause no discoloration to the painted surface and shall compare favorably with the painted adjoining metal surface where no sealant has been applied 4.1.14 Peel Adhesion (Type II & III only) 4.1.14.1 Method: A minimum of five samples shall b

29、e tested at each condition. Apply a 25 x 100mm sealant patch on a 100 x 300mm panel. Roll to ensure minimum 90% wet out. Subject panel to bake schedules as listed in Table 1 for body, paint shop or trim line applications. Test one set prior to bake schedules to ensure adequate green strength. Expose

30、 panels to the following environmental conditions: As Prepared 240 h Humidity ASTM D2247 240 h Salt Spray ASTM B117 240 h Water Immersion 38 2C 4.1.14.1.1 Allow samples to condition at 23 2C for two hours. Perform 900 peel adhesion at a speed of 300mm per minute per SAE J1679. 4.1.14.2 Required: 66N

31、/25mm width or cohesive failure of the material. Additionally, the material shall not slump or run. 4.1.15 Torque Loss (Type I & II only) This test shall only be conducted if torque loss is of concern when using a Type I bolt sleeve material. 4.1.15.1 Method: Prepare five bolt assemblies with sealan

32、t sleeve and five bolt assemblies without sealant sleeve. Install bolts onto nuts and record static torque applied to the nuts. Recheck torque after 24 hours. 4.1.15.2 Required: Torque loss measurement shall depend on the application of the bolt/nut assembly. Final torque value shall not be less tha

33、t the torque value specified on the engineering installation. 4.1.16 Composite Loss (Type III only) Material shall meet the minimum composite loss factor for vibration dampening as specified on the engineering print. NUMBER: MPAPS K-6928 TITLE: Sealant, Preformed Patches REVISION: 1610 This document

34、 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. 2016 Navistar Inc. OCTOBER 2016 Page 5 of 7 4.2 Process Compatibility Preformed sealant patches, when applied to the ca

35、b prior to paint operations, shall remain in place and be compatible with the pre-treat and e-coat system of the using plant as required under MPAPS G-9013. It shall be the suppliers responsibility to work with E-coat primer and pretreatment suppliers to determine that the sealant patches will not c

36、ause contamination of these process baths. 4.2.1 Transference Additionally, material satisfying the requirements of Types II and III, after application, shall not be transferred to tools or operators boots when walked upon inside cab. 4.3 Shelf Life This product shall have a minimum shelf life of 12

37、0 days when stored at ambient conditions away from direct sources of sunlight and moisture. 5.0 QUALIFICATION Engineering qualification of sources is required in advance of production shipments. Samples shall be accompanied by test data certifying that all requirements of the specification have been

38、 met. Material and processes submitted for approval to this specification shall include the following: A detailed, signed test report documenting testing to this specification prepared per MPAPS P-9543. Test coupons or photographs showing failure modes for each test. The complete procedure used for

39、preparing and curing materials for test, especially surface preparation and condition of the test coupons. Sealant patch materials, substrates and any chemicals used for bonding. Questions regarding qualification requirements, reports and test materials may be directed to: Manager, Materials Enginee

40、ring Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN 5.1 Quality Control Plan A Quality Control Plan for products supplied to the requirements of this specification will be established by mutual agreement between NAVISTAR and the

41、supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control.* * Other characteristics for inclusion in the control plan may be specified on the engineering drawing and/or purch

42、ase order. * See NAVISTAR Engineering Design Standard A-16 NUMBER: MPAPS K-6928 TITLE: Sealant, Preformed Patches REVISION: 1610 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

43、 all patent liability. 2016 Navistar Inc. OCTOBER 2016 Page 6 of 7 6.0 SOURCE APPROVAL 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 supplie

44、r can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. 6.2 Approval Parts supplie

45、d against contracts or purchase orders citing this specification shall be equivalent 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, processing

46、practices, construction, color, or labeling of the product are required, the supplier shall notify NAVISTAR Materials Engineering and Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or am

47、ended or updated Material 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 report results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guideline

48、s, or provide statistical 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 quality control manager of the using NAVISTAR plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING AND HANDLING Shipping and identification shall be in accordance with NAVISTAR Supplier Pa