what glue would you use?

[locknut550]

without getting into details , i want to glue a piece of aluminum to a hdpe plastic boat hull, this piece of aluminum will be completely submerged at all times . what would be the best(strongest and waterproof) glue for this situation?

 

[jim dozier]

Re: what glue would you use?

I don't think anything will stick aluminum to HDPE very well. Maybe contact cement if you have enough surface area.

 

[Dunaruna]

Re: what glue would you use?

Glue and bolt maybe, but glue alone probably won't hold. A commercial brand polyurethane is probably the strongest for underwater use - same as a windscreen glue.<br /><br />Aldo

 

[BillP]

Re: what glue would you use?

http://www.glueguru.com/Methacrylates.htm

 

[Ralph 123]

Re: what glue would you use?

3M 5200 would work too... check it out here's 3M's product sheet<br /><br /> http://multimedia.mmm.com/mws/mediawebserver.dyn?vvvvvvdbnGJvPZwvIZwvvWavL2qzpFH1-

 

[bossee]

Re: what glue would you use?

Sikaflex 292 would probably do it.

 

[Terry H]

Re: what glue would you use?

locknut, if your hull if fiberglass/gelcoat I would use #1 Plexus. #2 3M 5200. #3 Sikaflex292. <br />Chief

 

[Moody Blue]

Re: what glue would you use?

I would ask - how big of a piece of aluminum ? Thats a tough combination to mechanically fasten using only an adhesive. Not much will stick to HDPE.

 

[Bondo]

Re: what glue would you use?

Not much will stick to HDPE.

That's going to be the Real Problem..........

 

[Moody Blue]

Re: what glue would you use?

You might want to contact 3M and ask about the VHB (very high bond) tape series. It is the ultimate in double sided tapes and is used commonly as mechanical fastening in place of rivets, screws etc in the transportation industry. Not sure about being water proof. Give them a call and they may be able to help, afterall they are the adhesive experts.