HOW TO: Repair Rocker Panels with Expanding Foam 'Great Stuff' and Rubber

HOW TO: Repair Rocker Panels with Expanding Foam 'Great Stuff' and Rubber

I use expanding foam and rubber spray on rocker panel guard to fix up some rust holes appearing on our old 1997 Suburban.

[jhphoto]

Many of you people are missing his point, hes not repairing a Mercedes here. Its a beater truck that he is wisely trying to squeeze a few more years out of. I say great job. I get so sick of our society's fix nothing, just buy a new one mentality. Probably why you are all in debt up to your eyeballs. Sheesh!

[christopherweber]

I used spray foam to fill rusted tube steel on both a grill and a ladder rack and it's effectively prevented rust from returning for nearly 10 years now. Super quick and only $5, can't beat it.

[vwx]

This is actually a very good fix for a lot of badly rusted vehicles that still run good but are not worth a lot of money .

[JC]

Another great way to use this trick is, like he said, use it to support long hair fiberglass, and instead of rocker guard or rubber undercoating, Duplicolor makes an aerosol (spray paint can) truck bed liner. I actually did exactly that and used the bed liner on an entire Jeep Wrangler, inside and out, and it lasted 15 years before I decided to sand it down and redo it all by welding in new metal and repainting it with actual paint.

[TheCarnager]

Thank you for sharing your experience. I hope the foam makes them live even longer.

[goesfastandfar]

Really well done video and quite thorough from start to finish. A cheap and easy way to clean up that rusty rocker area!

[Andrew-rbgs]

Why not? No book value left and insurance will write it off in a collission anyway. I've used that stuff and it works good for a few yrs.

[jordanc]

This was probably thee most helpful video out there if I could I would hug you . Love from Toronto ❤️

[JustRAD]

The can you have is actually asphalt based and not rubber. You can get the rubberized based spray too. It's the same as the paint on you have but just spray. You can also tell by the smell of it. Nasty crap. Haha. One more thing. They make a waterproof foam that is coincidentally black like the rocker guard. Just one more protective step to take. Great tutorial. I've done this to my 4Runner before. Works like a charm.

[sherlockholmes]

That stuff works like a sponge it keeps the water in rusting the panels out even faster. Especially salt brine in the Northeast.

[jeffparkinson]

I suggest using truck bed liner, that stuff is tough as nails and even bulletproof from 22 caliber rounds, its rust proof and lasts a time. I sanded my hitch down about 5 years ago and sprayed it with truck bed liner and it looks just as good today as it did when I did it.

[dockbabington]

I would have at least ran some fiberglass patch over the holes. The foam would give you good form support for the patch while it dried.

[spinb]

I appreciate the effort. Nothing wrong with how you did this.

[albertcjae]

Can u use any regular blade or knife to cut and mold the foam?

[najeebbaterdouk]

I find this very helpful - thank you very much!

[mordyfisher]

This is a really good trick. But if you want to go the extra mile, spray on a quick coat of foam glue. It will stop the rocker guard from eating the foam... I use the spray foam and sand it to look nice, spray the glue and let jt dry, then i smear it with glazing or spot putty and sand it perfectly, can then be painted properly with what ever you want and makes it mutch more ridgid...
Bedliner spray works good too, it will eat the foam and leave a hard fillable surface that you can paint again.

[elicha]

is fiber glass on top of the foam is needed ?

[thewilster]

Skip the foam and take wax paper and use a black marker to outline the hole and make it a extra half an inch or an inch bigger than hole and use short strand fiberglass and press the plastic paper on then smooth out with palm of hand and pull out the ends of the wax paper and keeep it smooth.. wait a minute or two and pull off wax paper. the repair is hard as a rock. Put a second layer on without wax paper and sand down smoothly.. Then drill some quarter inch weep holes.. Quick and painless...

[iansvecs]

Because that's the strength you need in a side on collision.

[lotsofthisandthat]

For y’all complaining it will rust faster with the foam, there is a fix for that! Drill holes and saturate foam with Fluid Film. Problem solved!