Best Sealant for BHLM?

I can't find the 3m beed window sealant here in town. Any other suggestions? I am about to do the BHLM and want to make sure I get a good sealant so I don't get any leakage!! what about this stuff

 

I used Martin Senour windshield seal butyl tape. I really like it because it wasn't messy. 3m window weld is the same product. Did mine back in September and have had no fogging or leaks.

 

I used GE silicon II or III, the all weather/waterpfoof one. Works well.....takes some time to set-up tho.

 

That was one thing I liked about the butyl tape. I put the lights together and immediately put them on the truck. No set up time.

 

I'd wait and find the window weld... I wouldn't want some RTV silicone to be the only thing sealing up my lights. That stuff is good as an extra measure on the outside of the lights once they're assembled. Just my $0.02, do it right because it's a pain in the ass to do it over if they leak.

 

Hey bud where did you get this stuff? Thats what I've heard to use, did you have to heat it back up after applying it so it would mesh together? Thanks

 

Auto parts stores, advanced, autozone, etc. I thought that was the stuff you said you couldn't find?

That stuff you need to heat up before the lights go back together.

 

I bought mine at NAPA. I didn't heat it up before I put it back together, but it was warm weather. If it were really cold I might heat it up a little. And I'm not saying that silicone won't work well, I just didn't use it for my retrofit. There are plenty of people that swear by the silicone sealant.

 

Use the 3m window weld butyl stuff and viet's bhlm write up. You won't have a problem

 

permatex RTV silicone sealant, looks very similar to the pic you posted on post #1

 

I just re-used the factory sealant/adhesive. Then run a bead of Clear silicone around the seam and work it in with your finger. Make sure you wear gloves and have plenty of paper towels handy. The silicone is messy. This is what I have done on all the BHLM's I have done (I have done a lot of them). No leaks or condensation.

 

Guessing you obviously have to heat the OEM silicone back up before pushing back together? Thanks everyone for the replies!!! I am going to attempt this in the next couple of days, BTW is no one sanding/priming the housing before painting it? Seems like it won't hold to well

 

Yep I stick the lens back to the housing. Put it in the oven for another 3-4 minutes. Then take it out and squeeze back together. Then put the screws back in.

No need to sand the housing. Start out with very light coats (almost a dusting) Then slowly build it up. I have done many many BHLM's and never had any chip off because I didn't sand before I painted.

 

I used this too and I have no fogging at all. I did apply it then heated it before bonding the 2.

 

I just pushed the factory sealant back into the grooves. Been over a year and no problems.

 

Windo weld is what you want.

 

I think thats what I'm going to try, and maybe put a beed of sealant around that to make sure, Thanks!