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PU to aluminum bonding issues
the manufacture had recommened that i use Conap AD1147 with the silbond as a adhesion promotion, what what i had found regardless of pre work to the steel it has great bond between the PU and primer, but the primer doesnt hold onto the metal substrate, which is why i had gone to using the...- Lukecon
- Post #5
- Forum: Polymer engineering
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PU to aluminum bonding issues
i have grib blasted and also acid etched to ensure a correct surface prep, i also MEK wash all items prior to painting primer on , i can achieve a bond from the primer to substrate but the PU is still pulling away from the primer- Lukecon
- Post #3
- Forum: Polymer engineering
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PU to aluminum bonding issues
Hi, im currently having issues with the bonding of a cold cast MDI polyurethane, to an aluminum substrate, i have currently been using the following primers with the results next to them AD 1147 ( adhesion failure is a hit and miss ) Silbond / AD 1147 ( adhesion failure ) Chemlok 213 (...- Lukecon
- Thread
- Replies: 5
- Forum: Polymer engineering
