MATERIAL - STRUCTURAL POTTING COMPOUND: FOAMED-IN-PLACE, EPOXY-PHENOLIC RESIN TYPE - QUALIFICATION OF
Test Data Memorandum
GENERAL DYNAMICS CORP POMONA CA POMONA DIV
Pagination or Media Count:
Three types of Thermofoam 607 are in use. The composition and proportions of these are given. Information was needed to verify Convairs proposed specification FMS-0076 for foamed-inplace structural potting compound of the epoxyphenolic resin type hence this test was originated to substantiate known characteristics and properties of Thermofoam 607 types I, IA, and II and to establish requirements for future acceptance testing of this material. Of all the compression specimens tests, only one went below the proposed minimum values. It was noted that at least one sample of each type of Thermofoam did not meet the density requirement hence the proposed specification may need to be changed to comply with the test results. The cellular structure of the foam as stipulated in the proposed FMS-0076 14 inch maximum, 116 inch average voids was satisfactory. However, some variation existed in the different lots of material which resulted in varying densities with the same types of foam. Generally, as the density increased the compressive strength was proportionally increased. Adhesive Engineerings Thermofoam 607 meets the requirements of the proposed Convair Specification FMS-0076 except for the density requirement.