Best mastic for rollbar to acrylic bonding

[K7 VCT]

Morning all,

Looking for the best solution to fix 3rd brake light to X rollbar rather than bolt on.

Must be Black, mastic or similar.

 

Any ideas.

 

Thank you

[SLR No.77]

Sikaflex 221?

Stu.

[7 wonders of the world]

Tigerseal 

[SM25T]

I used a bead of black silicone sealant each side of the light.

[David Brown]

Cable tie - you'll probably have to use them to hold the cable anyway. 

[timb2117]

Sikaflex to anything, hands, feet, boeing 747 - it wont budge :)

[SLR No.77]

The cable can be hidden with a strip of helicopter tape, it doesn't go gooey over time like other tapes.

Stu.

[K7 VCT]

Sikaflex sounds the way to go.....

 

Can you remove it if needed to?

[Jonathan Kay]

"Sikaflex sounds the way to go..... Can you remove it if needed to?"

NB there are lots of products labelled Sikaflex!

I don't know of any chemicals that help much. If you're lucky you can peel from an edge. And if you aren't you can abrade or scrape.

Which brings me to the question: What's the best way to prepare the two surfaces before sticking them together?

Thanks

Jonathan

[ScottR400D]

Sounds too permanent to me. I think I'd favour a good quality doubled sided with cable ties as back up, even if just on the cable. 
 

[SLR No.77]

But this was the OP request ...

"Must be Black, mastic or similar"

My high level brake light is attached to the rollbar with number plate sticky tabs, you can buy a roll of the stuff on ebay, and the cable secured with helicopter tape. Secure fix and easily removed if needed with no residue, plus I really dislike cable ties and p-clips on the outside of the car unless absolutely necessary!

Stu.

[K7 VCT]

Number plate tape is a good call. My front plate is stuck fast with the stuff.

Might go with 3m reflective tape to hide the cable, does 2 jobs then

[7 wonders of the world]

3M dual lock tape

[Geoff Brown]

I used the thin spongy double sided adhesive tape used for double glazing pvcu trim. Then infilled with a seam of black silicone to hide it & waterproof.

[rayjackson1950]

I used thin black cable ties for mine. Easy to change remove later, if necessary.

[ScottR400D]

I quite like Geoff's idea of tape plus a regular silicone to seal it. At least you've got a chance of removing it without damaging the bar. 

[K7 VCT]

Thanks guys