FORD FLTM BV 153-3-2001 RESISTANCE OF SEALERS AND HEAVY MASTIC ADHESIVES TO HEAT (Replaces FLTM EU-BV 053-03).pdf

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1、 FORD LABORATORY TEST METHOD BV 153-03 Date Action Revisions 2001 04 10 Revised Editorial no technical change A. Cockman 1990 06 27 Printed copies are uncontrolled Page 1 of 6 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF SEALERS AND HEAVY MASTIC ADHESIVES TO HEAT Application This met

2、hod is used to determine the resistance of sealers and heavy mastic adhesives to heat. Method A: For use on oiled surfaces. Method B: For use on primed surfaces. Apparatus Required Laboratory Forced Air Circulation Oven Capable of maintaining temperatures up to 250 +/- 2 C. Test Apparatus 50 mm in d

3、iameter (refer to Figures 2 and 3 - painted or plated steel). Template Refer to Figure 1 (may be made using steel, aluminum, or suitable plastic). Materials Required Test Panels Steel body skin panels. Dimensions 60 mm x 30 mm surface finish 0.9 - 1.8 micrometre CLA Preparation: Method A in accordan

4、ce with FLTM BZ 150-11, Normal Grade Method B in accordance with FLTM BI 120-01 Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and te

5、sted under the same conditions unless otherwise specified. FORD LABORATORY TEST METHOD BV 153-03 Page 2 of 6 Copyright 2001, Ford Global Technologies, Inc. Procedure Method A 1. The closed container of adhesive or sealant shall be conditioned for 24 h minimum at 23 +/- 2 C prior to application. 2. A

6、pply to 6 test panels, prepared in accordance with FLTM BZ 150-11, a bead of the material under test 200 mm in length, using the templates as shown in Figure 1. 3. Condition the specimens at 23 +/- 2 C for an open time of either a) 4 h for solvent-release materials or b) 10 minutes for solvent-free

7、materials 4. Cure 3 specimens in accordance with the minimum curing cycle and the other 3 specimens in accordance with the maximum curing cycle outlined in FLTM BV 150-05, Table 1. 5. Remove the specimens from the oven and cool to 23 +/- 2 C. 6. Test and examine as described under Evaluation. Method

8、 B 1. The closed container of adhesive or sealant shall be conditioned for 24 h minimum at 23 +/- 2 C prior to application. 2. Apply to 6 test panels, prepared in accordance with FLTM BI 120-01, a bead of the material under test 200 mm in length, using the template as shown in Figure 1. 3. Condition

9、 the specimens at 23 +/- 2 C for an open-time of 10 minutes. 4. Cure 3 specimens in accordance with the minimum curing cycle and the other 3 specimens in accordance with the maximum curing cycle outlined in FLTM BV 150-05, Table 2. 5. Remove the specimens from the oven and cool to 23 +/- 2 C. 6. Tes

10、t and examine as described under Evaluation. FORD LABORATORY TEST METHOD BV 153-03 Page 3 of 6 Copyright 2001, Ford Global Technologies, Inc. Evaluation After conditioning the specimens for 2 h at 23 +/- 2 C, bend each specimen through an angle of 90 in 2 s around the mandrel, using a bending fixtur

11、e as shown in Figures 2 and 3. Examine and determine loss of adhesion, cracking and chipping as required by the applicable Engineering Material Specification. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for deter

12、mining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BV 153-03 Page 4 of 6 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF SEALERS AND HEAVY MASTIC ADHESIVES TO HEAT FIGURE 1 Note: Bead thickness (x) to be 3 mm unless otherwise specified in the applicable engine

13、ering document Template depth (y) will be that necessary to produce the required sealer bead thickness (x). FORD LABORATORY TEST METHOD BV 153-03 Page 5 of 6 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF SEALERS AND HEAVY MASTIC ADHESIVES TO HEAT FIGURE 2 FORD LABORATORY TEST METHOD BV 153-03 Page 6 of 6 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF SEALERS AND HEAVY MASTIC ADHESIVES TO HEAT Figure 3

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