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 by Navistar, Inc. JUNE 2016 Page 1 of 9 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS K - 6916 Former Designation: TMS-6916 TITLE: Adhesive/Sealant, Heat Expanding CURRENT REV No.: 1606 DATE: June 2016 WRITTEN/EDITED BY: S. Brailey APPROVED BY: R. Goluch SUPERSEDES: Rev. 1604 April 2016 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This s
3、pecification 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 describes the requirements for various types of heat expandable and curing adhesives and sealants suitable for use as anti-flutter adhesives in cab roofs and doors and for sealing holes and joints. 2.0 SCOPE This specification covers the general requ
5、irements, property and performance requirements, quality, source approval and quality control requirements. 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 MPAPS B-50 specification.
6、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 TS-16949 CFR Title 29, Part 1910 NAVISTAR MPAPS P-9543 NAVI
7、STAR MPAPS B-6815 SAE J243 SAE J1523 NAVISTAR Manufacturing Std. MS-D-13 ASTM B117 SAE J1553 NAVISTAR Engineering Design Std A-16 ASTM D5 NAVISTAR MPAPS B-50 NAVISTAR MPAPS G-5 ASTM D471 ASTM D2240 4.0 REQUIREMENTS 4.1 Description of Types 4.1.1 Type I (Replaced By Type III) Type I was a plastisol t
8、ype sealant. It is NOT RECOMMENDED FOR NEW DESIGN. Type I has been replaced by Type III. 4.1.2 Type II An extruded elastomeric adhesive that can be used for bonding roof and other panels to reinforcements over a range of gap sizes. This product is used with oily metal and must be compatible with pre
9、treat and E-coat operations. It expands and cures in the primer oven in a temperature range of 149-177C (300-350F). NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from
10、 Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 2 of 9 4.1.3 Type III A pumpable elastomeric adhesive and sealant designed for bonding reinforcements to cab panels and for filling seams, gaps and holes. It shall be suitable
11、 for use in resistance-welded joints. This product is used with oily metal and must be compatible with pretreat and E-coat operations. It expands and cures in the primer oven in a temperature range of 149-177C (300-350F). 4.1.4 Type IV Same as Type II except for reduced expansion properties suitable
12、 for joints with narrower gaps. 4.1.5 Type V Similar to Type II except it is generally applied over the E-coat primer as an air/dust sealant. 4.1.6 Type VI Similar to Type II except it is extruded or molded in a unique shape to improve fit/assembly and to further resist wash off. 4.1.7 Type VII Simi
13、lar to Type II except for its design intention as NVH (Noise and Vibration Harshness) or water/air barrier. It expands and cures in E-coat oven at a temperature range of 160-205C (320400F). 4.1.8 Type VIIA Same as Type VII except it has higher expansion properties and a lower viscosity. 4.1.9 Type V
14、III Similar to Type II except it cures at a lower temperature. 4.1.10 Type IX Similar to Type II except it cures at a lower temperature and is non-expanding. 4.1.11 Type X An extruded rubber-based foam co-extruded on a pressure sensitive adhesive layer designed for sealing water and dust and also fo
15、r noise reduction at high frequencies. 4.2 Uncured Properties 4.2.1 Percent Solids (except Type VIII) 4.2.1.1 Method: SAE J243 Procedure ADS-7, Method A 4.2.1.2 Required: 98% min. 4.2.2 Density 4.2.2.1 Method: 4.2.2.1.1 All types except Type VIII: water displacement or equivalent 4.2.2.1.2 Type VIII
16、: ASTM D71 4.2.2.2 Required: 4.2.2.2.1 All types except Type VIII: 1.25-1.50 g/cc. 4.2.2.2.2 Type VIII = 0.4 1.0 g/cm3 4.2.3 Viscosity (except Type VIII) 4.2.3.1 Method: 4.2.3.1.1 Types II, IIA, IV, V, VI, VII, VIIA, IX, X: ASTM D5 Penetration Method, 100 g T.M.L., 5 Sec. 4.2.3.1.2 Type III: SAE J24
17、3, Procedure ADS-1, Agitated-Conditioning Method C, Pressure Flow Method 275 kPa (40 psi), 25 1C (77 2F), 20 g Load, 2.64 mm (0.104 in) Orifice 4.2.3.2 Required: 4.2.3.2.1 Type III = 30-50 Sec. NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 This document is restricted an
18、d may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 3 of 9 4.2.3.2.2 Types II, IV, V, VI = 5.0-7.5 mm Penetration 4.2.3.2.3 Type IIA = 8.0-10.00 mm P
19、enetration 4.2.3.2.4 Type VII = 13.0-15.0 mm Penetration 4.2.3.2.5 Type VIIA = 0.75 mm 2.75 mm 4.2.3.2.6 Types IX, X = To Be Determined 4.2.4 Aged Viscosity (except Type VIII) 4.2.4.1 Method: Age samples at 54 1C (130 2F) for 72 hours. 4.2.4.2 Required: All Types - Shall show no visible hardening or
20、 loss of tack. 4.2.5 Hardness - Types V and VI 4.2.5.1 Method: ASTM D2240, Type A 4.2.5.2 Required: 4.2.5.2.1 Type V = 75 10 points 4.2.5.2.2 Type VI = 55 10 points 4.2.6 Aged Hardness Types V, VI 4.2.6.1 Method: ASTM D2240, Type A. Age samples 72 hours at 43C (110F) 4.2.6.2 Required: No change from
21、 initial hardness 4.2.7 Cure Temperature Cycle 4.2.7.1 Cure or polymerization shall be obtained when exposed to the following recirculating air oven temperature (Test with samples cured at each bake cycle): Low Bake: To be determined by manufacturing facility Over Bake: 60 minutes at 177 1C (350 2F)
22、 4.2.8 Wash-Off Resistance - All Types 4.2.8.1 Method: SAE J243, Procedure ADS-5 4.2.8.1 Required: No displacement of the adhesive due to lack of adhesion. 4.2.9 Odor It shall be the suppliers responsibility to determine that the constituent materials and finished product are deemed to be non-object
23、ionable and meet all safety standards. 4.2.10 Process Compatibility Uncured sealer/adhesive must remain in joints without flow or washout through the spray and immersion stages of pretreat and E-coat. The supplier is responsible to work with E-coat primer and pretreatment suppliers to insure that se
24、aler/adhesive will not contaminate these process baths. 4.3 Property And Performance Requirements Tests performed after adhesive has been cured as specified in Table 1. 4.3.1 Bond line Thickness, minimum test thickness of cured materials shall be as follows: 4.3.1.1 Type III, VIII: - 0.030 in 4.3.1.
25、2 Type II,V,VI: - 0.40 in 4.3.1.3 Type IV: - 0.15 in NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assum
26、e all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 4 of 9 4.3.1.4 Type VII: - 0.06 in 4.3.1.5 Type IX: - 0.035 in 4.3.1.6 Type VIIA - 0.06 in 4.3.1.7 Type X - To Be Determined 4.3.2 Shear Strength (except Type VIII) 4.3.2.1 Method: SAE J1523 with shear lap of 1 inch using two steel* panel
27、s cured and pulled at a rate of 50 mm (2 in) per minute. * Type II and Type VI require aluminum panels. Type V requires E-coated aluminum panels. 4.3.2.2 Required: All Types: 90% minimum cohesive failure, and Type VI - 80 psi minimum, breaking strength. 4.3.3 Adhesion 4.3.3.1 Method: SAE J1553 4.3.3
28、.2 Required: All Types will exhibit a 90% minimum cohesive failure at room temperature. Minimum strength will be: 4.3.3.2.1 Type III: 40 lbf with steel coupons 4.3.3.2.2 Type II,VI,VIII,IX: 15 lbf with aluminum or steel coupons, as applicable 4.3.3.2.3 Type IV: 10 lbf with steel coupons 4.3.3.2.4 Ty
29、pe V: 10 lbf with E-coated aluminum coupons 4.3.3.2.5 Type VII,VIIA: 5 lbf with steel coupons 4.3.3.2.6 Type X To Be Determined 4.3.4 Sheet Metal Lubricant Compatibility 4.3.4.1 Method: Prepare panels for shear strength and adhesion testing except metal to be coated with MPAPS B-6815 processing comp
30、ound (not required for materials applied over E-coat, Type V). 4.3.4.2 Required: Same as Shear Strength and Adhesion 4.3.5 Corrosion (except Type VIII) 4.3.5.1 Method: ASTM B117 salt spray test for 96 hours on coupons prepared the same way as the coupons for shear strength test. Perform shear streng
31、th test after corrosion exposure. 4.3.5.2 Required: All Types - No visible loss of adhesion. Type VI - 55 psi min breaking strength. 4.3.6 Low Temperature Impact 4.3.6.1 Method: SAE J243 Procedure ADS-2, Method A at -29C (-20F). 4.3.6.2 Required: All Types - No visible cracking or loss of adhesion t
32、o the base panels. 4.3.7 Expansion 4.3.7.1 Method: Cure product in accordance with schedules in Table 1 and determine volume change per ASTM D471. 4.3.7.2 Required: 4.3.7.2.1 Type IV = 150% minimum 4.3.7.2.2 Type II,V,VI = 200% minimum 4.3.7.2.3 Type III = 50% minimum 4.3.7.2.4 Type VII = 400% minim
33、um NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 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 by Navistar, Inc. JUN
34、E 2016 Page 5 of 9 4.3.7.2.5 Type VIII = 100% minimum 4.3.7.2.6 Type IX = 5% maximum 4.3.7.2.7 Type VIIA = 400% minimum 4.3.7.2.8 Type X = 600 % minimum 4.3.8 Elevated Temperature Resistance (except Type VIII) 4.3.8.1 Method: Place adhesive bead(s) between a 250 x 75x 1.5 mm (10 x 3 x 1/16 in) metal
35、 panel and a section representative of the joint (roof reinforcement, door, etc.) where the adhesive is to be utilized. Place a spacer at each end whose thickness allows 100% expansion of the adhesive. Clamp and place the assembly in a circulating air oven at 191 1C (375 + 2F) for 3 hours. 4.3.8.2 R
36、equired: All types - no evidence of loss of adhesion or charring of the adhesive and no deformation of the panels. 4.3.9 Water Absorption 4.3.9.1 Method: Weigh 100 x 200 mm (4 x 8 in) panel (aluminum or steel), then apply 5-10 grams of adhesive and cure in accordance with General Requirements Sectio
37、n 4.1.7. Reweigh sample to determine cured weight of sealant. Immerse sample in water for four hours at room temperature. Remove and blot off surface moisture with absorbent paper. Reweigh to determine increase as moisture absorption. 4.3.9.2 Required: All Types - 2% maximum water absorption. 4.3.10
38、 Adhesive Release from Roof - Type II only 4.3.10.1 Method: Set up assembly per Figure 1, using 4 x 12 inch steel panels and sealer (1/4 x 1 x 3-1/2 in dome). Clamp per Figure 2. Then place in oven at 325F and bake for 30 minutes. Repeat with another assembly in an oven at 375F for 30 minutes. Remov
39、e the assemblies from the oven and allow to cool to room temperature. Remove clamp #2 and 1/2 in spacer from the assembly. Adhesive shall have cured and expanded to meet both metal panels. Place assemblies per Figure 3 in a 275F oven and bake for 30 minutes. 4.3.10.2 Required: Adhesive shall not rel
40、ease from either panel. FIGURE 1 NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 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 liabili
41、ty. 2016 by Navistar, Inc. JUNE 2016 Page 6 of 9 FIGURE 2 FIGURE 3 4.3.11 Staining Exterior applications only 4.3.11.1 Method: Cure sealer on 100 x 200 mm (4 x 8 in) panel (aluminum or steel), spray paint per MPAPS G-5, II Grade 19 (white) and cure paint for 30 minutes at 121C (250F). Subject panel
42、to 250 hours in a QUV-B weathering tester. 4.3.11.2 Required: All Types - 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. 5.0 QUALITY Material supplied shall not contain abrasive or to
43、xic agents and shall meet MPAPS B-50. Storage life shall be agreed upon between the purchaser and the supplier but should have a minimum of 90 days from receipt of material when stored at standard plant conditions for that facility. 6.0 QUALIFICATION Engineering qualification of sources is required
44、in advance of production shipments. Samples shall be accompanied by test data certifying that all requirements of the specification have been met. 6.1 Quality Control Plan A Quality Control Plan for products supplied to the requirements of this specification will be established by mutual agreement b
45、etween NAVISTAR and the 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.* Expansion NUMBER: MPAPS K-6916 TITLE: Adhesive/Sealant, Heat Expanding REVISION: 1606 This
46、 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 by Navistar, Inc. JUNE 2016 Page 7 of 9 * Other characteristics for inclusion in the control plan may be
47、 specified on the engineering drawing and/or purchase order. * See NAVISTAR Engineering Design Standard A-16 7.0 SOURCE APPROVAL AND QUALITY CONTROL 7.1 Supplier Requirements All suppliers to NAVISTAR are required to be registered to ISO 9001 Quality System Requirements. NAVISTAR will also accept TS
48、-16949 registration as long as the supplier 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 Buye
49、r upon request. 7.2 Approval Parts supplied 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 practices, construction, c
