I've successfully bonded the stock Fiero RRIM (Reinforced Reaction Injection Molded urethane?) driver's side, lower rear quarter panel, with its integral cold air induction inlet, to the inside of a Fiero Warehouse fiberglass driver's side, lower rear quarter panel, side scoop to retain the functionality of the stock Fiero cold air induction system.

The bond itself is strong, so the next thing I want to do is smooth over the visible part of the bond with some filler or putty for appearance's sake. I know the product (or products) to do that needs to be compatible with the RRIM and fiberglass components of this set-up, but I don't know the brand name of the product (or products) to use for that purpose.

Accordingly, what in your opinion are the specific brand name or names of the filler or putty products you've used or would recommend to me to use for smoothing over the visible bond between the RRIM and the fiberglass comprising this custom side scoop set-up?

Any help in answering that question would be greatly appreciated.

Use a type of filler made for plastic bodies and fex bumpers etc. like Everflex. I've used it between Fiberglass and CMC with no problems.

quote Originally posted by Francis T: Use a type of filler made for plastic bodies and fex bumpers etc. like Everflex. I've used it between Fiberglass and CMC with no problems.

Thanks, Francis T, for your suggestion. That might help. Because Everflex makes several products, might you recall the name of the specific Everflex product you'd recommend for the purpose I'd mentioned at the outset of this thread?

Everyone else, please keep in mind I'm trying to smooth over with filler or putty the (already strong) bond between RRIM and fiberglass which I described in more detail at the outset of this thread, so your suggestions here would be appreciated as well.

I just looked at the stuff and its really, Ever-coat Polyflex

I like the Evercoat glazing putty and the USC Feather-rite filler.

Get 'em both from uscomposites.com

David Breeze

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Pantera Rebody Kits

Thank you for your input, Francis T and opm2000. I ordered the "Evercoat Poly-Flex Flexible Polyester Glazing Putty" that both of you suggested.

For the benefit of others, know that its (quart) container ended up being almost ideal for squirting this stuff into the Fiero Warehouse side scoop I previously mentioned, and although I've not yet completely finished this project, the putty itself seems quite useful for the purpose I stated at the outset of this thread.

One can file and sand this putty after a short period of time, but much more importantly, it has evidenced having enough "flex" in it to accommodate the different expansion rates of the RRIM and fiberglass components of this CAI-functional side scoop set-up.

Thanks again for your very useful recommendations, Francis T and opm2000.

quote Originally posted by project34: I've successfully bonded the stock Fiero RRIM (Reinforced Reaction Injection Molded urethane?) driver's side, lower rear quarter panel, with its integral cold air induction inlet, to the inside of a Fiero Warehouse fiberglass driver's side, lower rear quarter panel, side scoop to retain the functionality of the stock Fiero cold air induction system. The bond itself is strong, so the next thing I want to do is smooth over the visible part of the bond with some filler or putty for appearance's sake. I know the product (or products) to do that needs to be compatible with the RRIM and fiberglass components of this set-up, but I don't know the brand name of the product (or products) to use for that purpose. Accordingly, what in your opinion are the specific brand name or names of the filler or putty products you've used or would recommend to me to use for smoothing over the visible bond between the RRIM and the fiberglass comprising this custom side scoop set-up? Any help in answering that question would be greatly appreciated.

Pics please

quote Originally posted by Rick 88: Pics please

I myself unfortunately have no pics of this process to share (and in fact haven't completed it yet), but I was inspired to start this project by fellow PFF member, Mike Murphy. From the outside, the end result will look similar to what he had done (his photo below):

quote Originally posted by Mike Murphy:

One difference is that my set-up won't have the slick "Ram Air V6" emblem that his does.

The other, perhaps more significant difference, is that his set-up has a silver, multi-holed air screen over the scoop's air opening (not readily visible in the above photo).

In the interest of maximum airflow, mine has no air screen whatsoever.

Unfortunately with my set-up, the somewhat unsightly glue-laden "seams" on the inside of this functional scoop where it's bonded to the CAI Fiero body panel --- unless they're ground down and smoothed out --- are readily visible --- especially if like the rest of the scoop's opening, they're inadvertently highlighted with bright red paint by the local body shop.


In fact, attempting to locate the materials necessary to remedy that aesthetic limitation is why I started the present thread in the first place.


However, please be aware that to give credit where credit is due, credit for the basic idea of transforming this air scoop from The Fiero Warehouse to be fully Fiero-CAI-functional (The Fiero Warehouse scoop, although of excellent quality, doesn't come that way) should go to PFF member, Mike Murphy, not me. He has several photos on how to accomplish the basics of this modification, accompanied by explanations of what each of those photos signify, in the thread titled, "pictures of side scoops-please post yours," which is readily accessible to you via clicking on this link: https://www.fiero.nl/forum/Forum2/HTML/085430.html