How to seal tail lights? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

gpvecchi · 09-23-2021, 03:07 PM

I'm doing a custom mod to my tail lights.
Can you please suggest what product to use to seal them?
I read of 3M Weatherstrip, but I'm in EU and it's not available here.
Thanks!

Purist · 09-23-2021, 04:02 PM

Doesn't have to be 3M. Self Adhesive weatherstrip and/or trim adhesive.

Alternatively cut your gaskets out of closed cell foam and use trim adhesive.

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gpvecchi · 09-24-2021, 03:15 AM

I don't think that foam can seal tail lights that had been cut.

Purist · 09-24-2021, 03:57 AM

Can you post a picture of what you've done with your lights?

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gpvecchi · 09-24-2021, 02:56 PM

They are still unfinished, I'll post a pic as finished!

sharpsicle · 09-24-2021, 04:29 PM

I think he was more interested in a pic of what you're doing so we can come up with better ways to try and seal it.

It's hard to make suggestions without knowing what's going on.

VIP BRZ · 09-24-2021, 06:49 PM

I think a lot of people end up re-heating and use the existing OEM sealant,

Mostly I think because its a total pain in the ass to clean it all out of the groves anyway

Diode Dynamics recommends this stuff, no experience with it personally

https://www.diodedynamics.com/butyl-...p-sealant.html

soundman98 · 09-24-2021, 10:39 PM

Quote:

Originally Posted by gpvecchi

I'm doing a custom mod to my tail lights.
Can you please suggest what product to use to seal them?
I read of 3M Weatherstrip, but I'm in EU and it's not available here.
Thanks!

how did you open them up? cut them open?

generally, i use a clear 2-part epoxy to re-seal assemblies like that.

usually only headlights use butyl rubber as a sealant-- that is reusable and/or can be added to.

gpvecchi · 09-25-2021, 03:21 AM

2 parts epoxy sounds good, butyl tape is usually good for headlights. Thanks!

Purist · 09-25-2021, 04:22 AM

I'm really keen to see what you've done man. Make sure you post some pics when it's finished.

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soundman98 · 09-25-2021, 09:18 AM

Quote:

Originally Posted by gpvecchi

2 parts epoxy sounds good, butyl tape is usually good for headlights. Thanks!

you just need to stick a screwdriver to it-- if the goops sticky, it's butyl. the reverse light is sealed with butyl, and some aftermarket tail housings that you could be using could also be butyl.

but for one reason or another, most places like to plastic weld tail lights instead.

09-23-2021, 03:07 PM	#1
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	How to seal tail lights? I'm doing a custom mod to my tail lights. Can you please suggest what product to use to seal them? I read of 3M Weatherstrip, but I'm in EU and it's not available here. Thanks!

09-23-2021, 04:02 PM	#2
Purist Senior Member Join Date: May 2017 Drives: Subaru BRZ Location: Australia Posts: 349 Thanks: 125 Thanked 261 Times in 145 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Doesn't have to be 3M. Self Adhesive weatherstrip and/or trim adhesive. Alternatively cut your gaskets out of closed cell foam and use trim adhesive. Sent from my SM-G973F using Tapatalk __________________ Less More

09-24-2021, 03:57 AM	#4
Purist Senior Member Join Date: May 2017 Drives: Subaru BRZ Location: Australia Posts: 349 Thanks: 125 Thanked 261 Times in 145 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Can you post a picture of what you've done with your lights? Sent from my SM-G973F using Tapatalk __________________ Less More

09-25-2021, 04:22 AM	#10
Purist Senior Member Join Date: May 2017 Drives: Subaru BRZ Location: Australia Posts: 349 Thanks: 125 Thanked 261 Times in 145 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	I'm really keen to see what you've done man. Make sure you post some pics when it's finished. Sent from my SM-G973F using Tapatalk __________________ Less More

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09-24-2021, 03:15 AM	#3
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	I don't think that foam can seal tail lights that had been cut.

09-24-2021, 02:56 PM	#5
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	They are still unfinished, I'll post a pic as finished!

09-24-2021, 04:29 PM	#6
sharpsicle Certs You Dont Care About Join Date: Mar 2017 Drives: 2013 Galaxy Blue BRZ Location: Milwaukee, WI / Tampa, FL Posts: 230 Thanks: 34 Thanked 131 Times in 80 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I think he was more interested in a pic of what you're doing so we can come up with better ways to try and seal it. It's hard to make suggestions without knowing what's going on.

09-24-2021, 06:49 PM	#7
VIP BRZ Senior Member Join Date: Mar 2016 Drives: 2014 Subaru BRZ Location: CA - San Fernando Valley Posts: 492 Thanks: 242 Thanked 333 Times in 179 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I think a lot of people end up re-heating and use the existing OEM sealant, Mostly I think because its a total pain in the ass to clean it all out of the groves anyway Diode Dynamics recommends this stuff, no experience with it personally https://www.diodedynamics.com/butyl-...p-sealant.html

09-25-2021, 03:21 AM	#9
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	2 parts epoxy sounds good, butyl tape is usually good for headlights. Thanks!

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