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. 2009 Navistar Inc. DECEMBER 2009 Page 1 of 8 NAVISTAR INC. TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-
2、6925 TITLE: Moisture Cured and Air Cured, Pumpable Materials CURRENT REV No.: 0912 DATE: December 2009 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE DATED: June 2004 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specificatio
3、n 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 prior to u
4、se. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive; added CEMS B-50 requirement; clarification of viscosity requirements and cure conditions; added screening tests; editorial changes. Reference: File 30-1 Keywords: sealer, moisture
5、cured, air cured, adhesive 1.0 APPLICATION This specification outlines the requirements for moisture cured and air cured, pumpable sealants and adhesives. 2.0 SCOPE This specification covers the general requirements, property and performance requirements, quality, source approval and quality control
6、 requirements for the various moisture cured and air cured sealants and adhesives, and all approved source lists. 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 specificat
7、ion. 3.0 REFERENCE DOCUMENTS Unless otherwise specified the latest issue of all referenced standards shall apply. The following specifications and standards are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 ASTM B 117 SAE J243 CFR Title 29, Section 1910 ASTM C 794 SA
8、E J1523 NAVISTAR Manufacturing Std. MS-D-13 ASTM C 1135 SAE J1545 NAVISTAR Eng. Design Std. A-16 ASTM C 1241 SAE J1960 NAVISTAR CEMS B-50 ASTM C 1246 NAVISTAR CEMS C-10 ASTM D 624 NAVISTAR CEMS G-5 ASTM D 792 NAVISTAR CEMS GT-7E ASTM G 154 NAVISTAR TMS-9543 3.1 Description of Types A description of
9、the material types and material definitions are included under General Information (section A.0) at the end of this specification. 4.0 GENERAL REQUIREMENTS 4.1 Uncured Sealant Properties 4.1.1 Solids Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for Resale
10、No reproduction or networking permitted without license from IHS-,-,-NUMBER: TMS-6925 TITLE: Moisture Cured and Air Cured, Pumpable Materials REVISION: 0912 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Supp
11、liers are required to assume all patent liability. 2009 Navistar Inc. DECEMBER 2009 Page 2 of 8 4.1.1.1 Method: SAE J243 Procedure ADS-7, Method A 4.1.1.2 Required: 95% minimum solids. 4.1.2 Density 4.1.2.1 Method: ASTM D 792 4.1.2.2 Required: 1.30-1.70kg/L (0.757-0.990lbm/gal) 4.1.3 Viscosity 4.1.3
12、.1 Method A: (Types I, II and V) SAE J243, Test method ADS-1, Procedure 3.2.1, Conditioning Method C, 275 kPa (40 psi), 25 1C (77 2F), 20 g. Orifice size should be chosen so that the test time is equal or longer than 10 seconds. 4.1.3.2 Required: Report value and orifice size 4.1.3.3 Method B: (Type
13、s III and IV) SAE J243, Test Method ADS-1, Procedure 3.2.2, Conditioning method C 4.1.3.4 Required: 40-80Ps 4.1.4 Aged Viscosity 4.1.4.1 Method: Age sample at 43 1C (110 2F) for 72 hours. Test viscosity per corresponding method as specified in section 4.1.3. 4.1.4.2 Required: Report value 4.1.5 Clea
14、ning The uncured sealant shall clean readily from metal surface, without streaking, when wiped with a cloth dampened with acetone or isopropanol. 4.1.6 Odor It shall be the suppliers responsibility to determine that the constituent material and finished product are deemed to be non-objectionable and
15、 meet all safety standards. 4.2 Property and Performance Requirements For purposes of screening, quick-knife tests may be performed at RT and after water immersion along with the low temperature adhesion test. 4.2.1 Test Sample Preparation A minimum of five test samples shall be prepared for each co
16、ndition tested. The surface condition tested should be representative of production conditions and must be fully described in the test report. A material shall be qualified only on the surface condition in which it will be used during production. The cure conditions should match production condition
17、s as closely as possible and shall be described fully in the test report. If production conditions do not impair or accelerate the cure, then cure samples for 7 days at room temperature and 95%RH for moisture cured materials or 60%RH for air cured materials. 4.2.2 Aluminum Sheet Stock Surface Prepar
18、ation Prepare three sets of five test samples from aluminum sheet 5052-H32* per CEMS C-10. Using a solvent (acetone), clean substrate samples thoroughly. The first set shall be tested clean. The second set shall have a light oil coating, as in steps 4.2.3.5 and 4.2.3.6 listed below. The third set sh
19、all be prepared in the following manner: 4.2.2.1 Clean samples thoroughly with acetone. 4.2.2.2 Apply Mill Oil (Ashland Tectyl 900)* liberally to the bonding surface Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking perm
20、itted without license from IHS-,-,-NUMBER: TMS-6925 TITLE: Moisture Cured and Air Cured, Pumpable Materials REVISION: 0912 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 p
21、atent liability. 2009 Navistar Inc. DECEMBER 2009 Page 3 of 8 4.2.2.3 Wipe oil off surface with a clean, soft, paper lab towel. A light oil residue should remain. 4.2.2.4 Bake samples for four (4) hours at 200 C (392 F). 4.2.2.5 Apply drawing lubricant (Quaker 61AUS)* liberally to the bonding surfac
22、e 4.2.2.6 Wipe oil off surface with a clean, soft, paper lab towel. A light oil residue should remain. 4.2.2.7 Prepare test samples as required * Other grades of aluminum may be used in production. Testing other aluminum grades is not required for qualification but may be necessary in some special c
23、ases. Contact Materials Engineering for further information. * Other lubricants will be used in production. Sealants and lubricants shall be compatible with each other. Testing compatibility shall be the responsibility of the supplier of the new material. 4.2.3 Aluminum Extrusion Surface Preparation
24、 Prepare two sets of five test samples from aluminum sheet stock of the same grade as the production part. Using a solvent (acetone), clean substrate samples thoroughly. The first set shall be tested clean. The second set shall be prepared as in items 4.2.3.5 and 4.2.3.6 listed above, using extrudin
25、g and cutting lubricants representative of production. 4.2.4 Top Coated Surface Preparation Prepare a set of five test samples for each condition tested. The test samples shall be made from painted metal panels representative of production. Using a lint free cloth, wipe the panels to remove any dust
26、. Solvents shall not be used to clean the painted panels, as they may disturb the coating. 4.2.5 Electrocoated Surface Preparation 4.2.5.1 Metal: Three sets of five test samples shall be made from electrocoated steel representative of production. The steel shall be prepared as described in section 4
27、.2.2 4.2.5.2 Pre-primed metal: Three sets of five test samples shall be made from pre-primed electrocoated steel representative of production. Using a solvent (acetone or isopropanol) and a lint free cloth, clean substrate samples thoroughly. 4.2.5.3 E-coated metal: Materials to be used over E-coat
28、must be tested with current E-coat substrate using a nine-condition test matrix. This matrix tests the adhesion of the sealant to E-coated panels which have been exposed to nominal oven conditions of 30 minutes at 175C (350F), over bake conditions of 60 minutes at 200C (390 F), and under bake condit
29、ions of 15 minutes at 160C (325F). This matrix also includes test conditions in which the E-coat film thickness is varied at 0.6 mil, 0.9 mil, and 1.2 mil. Ten (10) 4“x12“ panels shall be prepared at each condition. Using a lint free cloth, wipe the panels to remove any dust. Solvent shall not be us
30、ed to clean the E-coated panels, as it will disturb the coating. 4.2.6 Shear Strength 4.2.6.1 Method: SAE J1523 with a 25 mm (1 in) overlap at a rate of 50.8mm/min (2.0in/min). Bond thickness shall be 30mil. Test the samples under the conditions described in Table 1A. 4.2.6.2 Required: A minimum of
31、100psi for sealants and 200psi for adhesives. Report failure mode. 4.2.7 Peel Strength 4.2.7.1 Method: ASTM C 794 Test the samples under the conditions described on Table 1B. Cure conditions shall be as described in section 4.2.1 Test Sample Preparation. The second coat is to be applied on the 4th d
32、ay of cure. 4.2.7.2 Required: A minimum of 15lb/in for sealants and 30lb/in for adhesives. Report failure mode. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TMS-6925 TI
33、TLE: Moisture Cured and Air Cured, Pumpable Materials REVISION: 0912 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. 2009 Navistar Inc. DECEMBER 2009 Page
34、 4 of 8 4.2.8 Humidity 4.2.8.1 Method: CEMS GT-7E for 500 hours on test samples prepared for shear strength and peel strength tests. 4.2.8.2 Required: A minimum of 80% of the strength obtained from the test performed at room temperature. 4.2.9 Water Immersion 4.2.9.1 Method: Immerse coupons prepared
35、 for shear strength and peel strength tests in distilled water at 25C (77F) 2C (3.6F) for 500hrs. 4.2.9.2 Required: A minimum of 80% of the strength obtained from the test performed at room temperature. 4.2.10 Corrosion 4.2.10.1 Method: ASTM B 117 for 500 hours on test samples prepared for shear str
36、ength and peel strength tests. 4.2.10.2 Required: A minimum of 90% of the strength obtained from the test performed at room temperature. 4.2.11 Heat Aging 4.2.11.1 Method: ASTM C 1246 using panels representative of production. Include hardness readings of the cured material before and after the heat
37、 cycle. After aging, bend the sample 180 around a 25 mm (1in) diameter mandrel. 4.2.11.2 Required: The samples shall exhibit no weight loss, and no visible signs of cracking, chalking or loss of adhesion after the heat cycle. The samples shall exhibit no visible signs of cracking or loss of adhesion
38、 to the panel after bending. Report hardness readings. 4.2.12 Low Temperature Adhesion 4.2.12.1 Method: SAE J243 procedure ADS-2, Method B, at -29C (-20F), 1.0 inch (25 mm) diameter mandrel, 0.060 inch (1.5 mm) sealer thickness x 1.0 inch (25 mm) wide band applied to 4“ x 12“ (100x300mm) panel of me
39、tal used for shear strength. 4.2.12.2 Required: Shall exhibit no visible cracking or loss of adhesion to the base panel. 4.2.13 Shrinkage 4.2.13.1 Method: ASTM C 1241 using the density calculated in section 4.1.2 4.2.13.2 Required: 5% maximum shrinkage 4.2.14 Tear Strength 4.2.14.1 Method: ASTM D 62
40、4 type C, cut the samples from strips of cured material 2.3mm 1.0mm thick. 4.2.14.2 Required: Report value. 4.2.15 Tensile Strength 4.2.15.1 Method: ASTM C 1135 4.2.15.2 Required: Report value. 4.2.16 Staining (Types I and V only) 4.2.16.1 Method A: Apply sample to E-coat primed panels 100 x 200 mm
41、(4 x 8 in) and cure (unless a wet-on-wet system approval is requested). Paint per CEMS G-5, Grade -19 (white) and cure paint Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER
42、: TMS-6925 TITLE: Moisture Cured and Air Cured, Pumpable Materials REVISION: 0912 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. 2009 Navistar Inc. DECEM
43、BER 2009 Page 5 of 8 for 30 minutes at 121C (250F). Per SAE J1960 exterior cycle, subject panel to 2500kJ/m2 in Xenon Weatherometer. 4.2.16.2 Required: Sealant/adhesive shall cause no discoloration to painted surfaces and compare favorably with the adjoining painted metal surface where no sealant/ad
44、hesive has been applied. 4.2.16.3 Method B: Apply sample to E-coat primed panels 100 x 200 mm (4 x 8 in) and cure (unless a wet-on-wet system approval is requested). Paint per CEMS G-5, Grade -19 (white) and cure paint for 30 minutes at 121C (250F). Per ASTM G 154, subject panel to 500 hours in QUV
45、Test with the following test cycle. 4.2.16.3.1 8 hours Ultraviolet light 60o C (140oF) 4.2.16.3.2 4 hours condensing humidity 50o C (122oF) 4.2.16.3.3 Repeat until exposure period is completed. 4.2.16.4 Required: Sealant/adhesive shall cause no discoloration to painted surfaces and compare favorably
46、 with the adjoining painted metal surface where no sealant/adhesive has been applied. 4.2.17 Sag Resistance (Not applicable to Types III and IV) 4.2.17.1 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 l
47、ocation. Incline panel at a 90 angle with bead horizontal and hold for 48 minutes at 25C (77F) room temperature. Measure any movement from scribe. 4.2.17.2 Required: Sealant/adhesive will flow a maximum of 3mm (1/8in) 4.2.18 Accelerated Weathering (Color matched materials only) 4.2.18.1 Method: Appl
48、y sample to electrocoated panels 100 x 200 mm (4 x 8 in) that have been painted of the same color as the sealant. Allow the material to cure per manufacturers specifications. Expose the samples to accelerated weathering cycles as described in Methods A and B of section 4.2.16 Staining using a top-coated panel of the same color as the control. Perform an Instrumental Color Difference analysis, per SAE J1545 be
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