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  1. A

    Conclusions on Aluminum Adhesive Bonding Tests

    I'm measuring primer thickness using elcometer 345 probe. On flat, bare metal panels primer tickness is between 0.15 mils and 0.17mils, that is actual paint gun setup. On anodized panels I can't measure the thickness because of anodized layer, even to make "0" is impossible, the error is around...
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    Conclusions on Aluminum Adhesive Bonding Tests

    Cohesive failure, adhesive on both surfaces in high results.On the others samples it looks like primer doesn't stick on the anodized surface, the strip is clean, primer traces on it, most of the primer and all adhesive is on the outer strip . . . like release agent was used instead of anodize...
  3. A

    Conclusions on Aluminum Adhesive Bonding Tests

    Hallo Gary,I'm trying to bond two 17"x17" aluminum plates with 3M AF163-2 structural adhesive. The plates are modified sulfuric acid anodized, primed with 3M EC 3960 adhesive primer within 4 hrs. after anodization , adhesive film applied and cured 250F/ 45psi 90min.Lap shear test per ASTM...
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