1、 FORD LABORATORY TEST METHOD BV 153-01 Date Action Revisions 2001 04 10 Revised Editorial no technical change A. Cockman 1990 05 24 Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. FLOW RATE OF SEALERS AND HEAVY MASTIC ADHESIVES Application This procedure de
2、scribes two methods for determining the flow rate of heat-curing type sealers and heavy mastic adhesives. Apparatus Required Fixtures for Mounting Test Panels As shown in Figure 1 or 2. Template As shown in Figure 3. Mechanical Convection Oven Capable of maintaining a constant temperature of 60 +/-
3、2 C. Materials Required Test Panels Electrocoated CRLC steel (refer to FLTM BI 120-01), with dimensions as shown in Figure 1 or 2. 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 humi
4、dity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure Method A (Refer to Figure 1) 1. The closed container of adhesive or sealant shall be conditioned for 24 h minimum at 23 +/- 2 C prior to application. FORD LABORATORY TEST METHOD BV
5、 153-01 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. 2. Hand stir 1.0 liter sample vigorously with a 40 mm wide spatula for 1 minute and apply a bead of sealer 100 mm in length onto the degreased, electrocoated panel using the template. Mount panel with sealer in the test fixture as sh
6、own in Figure 1. The long axis of sealer bead must be in a horizontal position during the test. Scribe a line as shown in Figure 1 to denote lower edge of sealer bead. Note: In the case of high viscosity materials a flattened bead may be formed when using this template. If this occurs the template s
7、hould be modified to produce a substantially semi-circular bead. 3. Allow to stand for 10 minutes at 23 +/- 2 C, measure and record cold flow, and immediately place in the oven at 60 +/- 2 C for 10 minutes. Method B (Refer to Figure 2) 1. The closed container of adhesive or sealant shall be conditio
8、ned for 24 h minimum at 23 +/- 2 C prior to application. 2. Place a stopper into the groove 150 mm from the edge of the test fixture. Hand stir 1.0 liter sample vigorously with a 40 mm wide spatula for 1 minute and immediately fill the upper section of the groove with sealer, flush with the adjoinin
9、g surfaces, and remove the stopper. Scribe a line as shown in Figure 2 to denote lower edge of sealer. 3. Allow to stand for 10 minutes at 23 +/- 2 C, measure and record cold flow and immediately place in the oven at 60 +/- 2 C for 10 minutes. Evaluation After removal of test specimen from oven meas
10、ure the flow of sealer from the original scribe line to the extreme point of flow and express results in mm. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BV 153-01 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. FLOW RATE OF SEALERS AND HEAVY MASTIC ADHESIVES Figure 1 Figure 2
