1、ABN 84 006 893 232 GM Holden Limited Engineering Department MATERIAL SPECIFICATION NUMBER SHEET RELEASE REVISION : HN 2369 1 of 4 November, 2000 October, 2007 NAME: BUTYL TAPE-EXPANDINGTHIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO
2、CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : I:MaterialsEngineeringStandardFormsMaterialSpecificationMatspec.doc 1. SCOPE This specification details the requirements of a butyl sealing tape used as a physical barrier to prevent corrosion between dissimilar materials. Tape must be composed
3、of a homogeneous material free of air, lumps, unmixed particles and foreign materials. The material shall be asbestos free and easily removed from its backing paper. Material must have good adhesion to oily substrates including Cold Rolled Steel (CRS), Electro-galvanised (EG), Hot Dipped Galvanised
4、(HDG), zinc anneal and Aluminium. The butyl sealing tape must expand during E-coat oven, protecting the sealant/E-coat boundary from undercutting corrosion. There are two types of this material: Type 1: Butyl material with both sides tacky Type 2: Butyl material with one side tacky and the other sid
5、e containing a compatible non-tacky layer for ease of application on the production line 2. REFERENCES GM9010P GM9832P HN 0214 GM9763P HN 1000 GMW3059 3. REQUIREMENTS 3.1 Physical Properties 3.1.1 Specific Gravity Typically 1.55, however, an individual specific gravity range, for each approved sourc
6、e, shall be set at the time of approval to this specification. This specific gravity range shall then become a requirement of that approved material. 3.1.2 Solids Content (GM9010P) 99% min by weight 3.1.3 Cone Penetration (150g, 6s, 25C) 5.5- 7.0 mm ABN 84 006 893 232 GM Holden Limited Engineering D
7、epartment MATERIAL SPECIFICATION NUMBER SHEET RELEASE REVISION : HN 2369 2 of 4 November, 2000 October, 2007 NAME: BUTYL TAPE-EXPANDINGTHIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FO
8、RM : I:MaterialsEngineeringStandardFormsMaterialSpecificationMatspec.doc 3. REQUIREMENTS (continued) 3.1 Physical Properties (continued) 3.1.4 Expansion 15-60% after curing through Bodyshop and Paintshop ovens. 3.1.5 Colour The material must be black in colour 3.1.6 Odour (GM9832P) The butyl tape mu
9、st not have a toxic or noxious odour. After curing, the tape must be relatively non-odourous. In addition, the ED50 value of its odour may be requested at the time of approval. 3.1.7 Toxicity The material must not adversely affect the personnel handling it. 3.2 Performance Requirements 3.2.1 Corrosi
10、on Resistance (HN0214) Butyl tape is attached between two 300mm x100mm x 10mm CRS panels separated by a 5 mm gap. Panels shall exhibit no corrosion of the steel in areas underneath the butyl sealing tape after 20 days of scab corrosion testing as per HN0214. 3.2.2 Stability Requirements (GM9763P) Ma
11、terial conditioned as described below must be able to pass all requirements of this specification. 3.2.3 Elevated Temperature Stability The sealer, as shipped, must be capable of withstanding 72h 43C. ABN 84 006 893 232 GM Holden Limited Engineering Department MATERIAL SPECIFICATION NUMBER SHEET REL
12、EASE REVISION : HN 2369 3 of 4 November, 2000 October, 2007 NAME: BUTYL TAPE-EXPANDINGTHIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : I:MaterialsEngineeringStandardFormsMaterialS
13、pecificationMatspec.doc 3. REQUIREMENTS (continued) 3.2 Performance Requirements (continued) 3.2.4 Low Temperature Stability The butyl tape, as shipped, must be capable of withstanding 72h 0C. 3.2.5 Storage Stability The shelf life of the material shall be 90 days at a temperature not to exceed 35C.
14、 The shelf life of the material commences upon receipt of the material from the manufacturer. 4. NEW SOURCES No shipments shall be made by a new supplier until a sample of the material it proposes to supply under this specification has been approved by the purchasers laboratory. 5. APPROVAL, INSPECT
15、ION & REJECTION Refer HN 1000, Clauses A and C. 6. HAZARDOUS MATERIALS Refer HN 1000, Clause H. 7. RESTRICTED AND REPORTABLE SUBSTANCES (i) All substances and parts must meet the requirements of GMW3059. (ii) All chemical components present in materials supplied to this specification must comply wit
16、h Australian NICNAS (National Industrial Chemicals Notification and Assessment Scheme) obligations. ABN 84 006 893 232 GM Holden Limited Engineering Department MATERIAL SPECIFICATION NUMBER SHEET RELEASE REVISION : HN 2369 4 of 4 November, 2000 October, 2007 NAME: BUTYL TAPE-EXPANDINGTHIS DOCUMENT M
17、UST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : I:MaterialsEngineeringStandardFormsMaterialSpecificationMatspec.doc 8. APPROVED SUPPLIERS AND MATERIALSMaterial known to meet the full requiremen
18、ts of this specification: APPROVED SUPPLIER APPROVED MATERIAL Henkel Australia Type 1 Terostat 2710-13 Henkel Australia Type 2 Terostat Orb 10000 9. REVISIONS October 2007 - Revised section “7.RESTRICTED AND REPORTABLE SUBSTANCES” to directly refer to GMW3059 and NICNAS requirements. - Section “8. APPROVED SUPPLIERS AND MATERIALS” -added Terostat Orb 10000 to approved material Prepared by: Y.Zia
