Sikaflex application
I installed the first alum sheet on the front of my box 1 week ago. I followed the manufacturers instructions to the letter. All surfaces clean and free of oil ,dust,grease etc. I lightly scuffed the the primered framework with scotchbrite. The sheets were clean and dry. I also did a test panel on some scrap tubing/sheetmetal. According to the chart, curing will take between 4-7 days depending on temperature and humidity. After 4 days I was able to pull the test panel apart rather easily. The sikaflex bonded to the tubing but not to the sheet. The sikaflex was still soft like caulking. Did I do something wrong or was it just not cured yet ? My shop stays at a constant 65 degree's. I do not know the humidity but I suspect it is quite low. Could that have been a factor? The bonding to the tube was very good. There was no bonding to the alum sheet at all. Any thought's on what went wrong or am I just to impatient? Michael
|