HOW TO: Feather-Edge after using Body Filler

Рет қаралды 82,484

Күн бұрын

Tom Cornelius, 3M application engineer, shares best practices, tips and tricks on feather-edging when it comes to body filler and glaze application.
Important notes (00:32)
Wear proper PPE: safety glasses, protective gloves, respirator, earplugs and whatever else you need for the job. This video is intended for a professional setting such as a body shop or paint shop.
Step 1: Apply dry guide coat (01:01)
Use a medium amount. Powder is superior to an aerosol or spray for refining and feathering sand scratches.
Step 2: Sand with 80 grit on a DA (01:59)
Do an initial rough sand with 3M™ Cubitron™ II 80 grit. Just knock down the body filler and any spreader trails or edges.
Step 3: Reapply dry guide coat and start the blocking process (02:31)
On your block you’ll again use 3M™ Cubitron™ II 80 grit.
Step 4: Switch to 150 or 180 grit (03:06)
Once again, reapply dry guide coat, then continue sanding with the higher grit.
Best practice: Keep the area as tight as possible (04:04)
Try not to sand or extend the inline block scratches past the edge of the factory paint. They’ll extend a little into the outer perimeter no matter what, and this leads to the next step.
Step 5: Feather-edge the sand scratches (04:26)
This is critical before moving on to glaze application. Reapply the dry guide coat, then use 3M™ Cubitron™ II 180 grit on a DA to fully feather-edge and refine the outer perimeter.
Step 6: Clean the damaged area (06:06)
Use a solvent-based cleaner.
Best practice: Do not apply cleaner directly to the body filler (06:38)
Apply it instead to the paper towel. Body filler will absorb the cleaning agent, which can cause blistering or other failures. If this is your standard practice, we recommend force flashing the cleaning solvent off the filler.
Step 7: Move on to the glaze (07:26)
Apply all the same principles - use dry guide coat and take the time to refine inline sand scratches before moving on to primer.
Important note:
There are of course many factors and variables that can affect an individual repair, so the technician and repair facility need to evaluate each specific application and repair process, including relevant vehicle, part and OEM guidelines, and determine what is appropriate for that repair.
Products used in this video:
3M™ Dry Guide Coat
www.3m.com/3M/en_US/company-u...
3M™ Cubitron™ II Hookit™ Clean Sanding Abrasive Discs 737U
www.3m.com/3M/en_US/company-u...
3M™ Cubitron™ II Hookit™ Clean Sanding File Sheets 737U
www.3m.com/3M/en_US/company-u...
For more advanced tutorials, check out 3M Collision Repair Academy
www.3m.com/3M/en_US/collision...
You’ll find courses that will expand your knowledge, deliver practical procedures that you can use right away, and, in many cases, earn you I-CAR credits.
Safety and warranty information
www.3m.com/3M/en_US/collision...
Website: www.3MCollision.com
Instagram: / 3mcollision
Facebook: / 3mcollision

Пікірлер: 50

@timmymonczunski6946 Жыл бұрын

Great videos and technical info, but I would love to see the repairs on actual cars/ trucks instead of a flat sheet of steel, the techniques become more difficult once you add a curved surface and or body lines

@JordanEisenhauer Жыл бұрын

This is a great vid brotha smells like freedom and bald eagles when i watch a classic 3m how to video keep up the work

@brandtoyo4237 3 жыл бұрын

These videos are great. Love the detailed explanation and video clarity

@BossPainter 3 жыл бұрын

Honestly love these videos pls don't stop making them

@mr.beanchannel7558 4 ай бұрын

Finally step will visible bro😊

@kimojoseph8057 3 жыл бұрын

Awesome 👏 video bro what I really wanted to see is how you apply the body filler mate 👍👍👌👏✅👊✊

@Openairgarage 3 жыл бұрын

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@sonnywinstead9977 Жыл бұрын

Why not put guide coat on until you are on last stage? After the 150 and 180 grit....seems pointless to use at the first sanding

@oscarhernandez9730 3 жыл бұрын

Hello good products. I use them and they make the process easier for me. Are your towels 3m or what brand are they? Greetings from Mexico.

@markbrandon7359 2 жыл бұрын

His test board had a light coat of sealer and paint easy to feather it's not the same on a car particularly on the German cars I worked on most of them have a rust preventive coat as well as sealer base coat and clear coat that's a lot of material to feather and many times you have to keep the area small to allow enough room for the painter to blend. I would spread the bondo right to the edge of the paint knock it down sand all scratches out of the paint than use evercoat glazing putty over the bondo and over the paint by a 1/4 inch no need to feather. They sent our preppers to an I-car class they came back saying "no more putty on the paint" the next 3 cars painted were redo's you could see a ring where the paint wasn't feathered properly. LOL the boss said "go back to how you were doing it before" In all my years I've never had a problem with a 1/4 inch of glaze over the paint I don't care what the experts say I was an expert repair man

@whatfreedom7 Жыл бұрын

Yeah that’s where some people disagree. Our painter always bitched when people just feathered chips scratches etc because he sow djr would buthole as he called it others call it bullseye. You can feather stuff but I feel like the odds of it showing are greater if you don’t get it feathered perfect and I think it may be harder or easier depending on how thick the paint is. I personally got in the habit of using 120-180 and at least remove the clear then use glaze and nothing shows. The only issue is if the paint ever lets go your glaze is over it so you definitely don’t want it over the clear since it’s the first to go. At the same time if the old paint lets go you have a completely different issue anyway.

@jTamayo34 7 ай бұрын

How would you go about fixing edge mapping after the primer is sprayed down? I ask because I thought i had featheredged properly but I can see some edge mapping underneath the urethane primer surfacer.

@dracko3761 3 жыл бұрын

ojala hicieran estos videos en español

@sins2344 2 жыл бұрын

I'm a paint helper I just started working 3 months ago. I just feather it out with a D.A. using 320 grit and then use 500 grit to remove the scratches and it's ready for primer. I do find it odd you're using guide coat on it because I wasn't told to use guide coat to feather it.

@MindDezign 2 жыл бұрын

Guide coat is the only way to seeing. And knowing when to stop sanding. Last thing you want is to see things thru the paint. I've learned guide coat is your friend if you want to do FAST but Accurate Work. Use it any where you want to see your work Many body shops are cheap and won't want you to use another step .h

@sins2344 2 жыл бұрын

@@MindDezign I usually feel the edge with my finger tips know if it's been feather out but everyone has their own method.

@alfonsorodriguez3432 Жыл бұрын

I find guide coat to be super useful when re-creating body lines.

@joevalencia945 2 жыл бұрын

What if the dent is by a slightly curb surface not flat, does it matter if i sand up and down and left and right, or does the shape got its own form to sand it. ?

@TheDGAF06 2 жыл бұрын

That's why you block it. You can get convex and concave blocks. Work with the shape

@danielgustafson8509 2 жыл бұрын

What benefit is your dry guide coat when your dust collection systems picks it all up?

@rubenorodriguez5465 Жыл бұрын

Still shows you if you have any low spots and highs

@shelbychartier5715 Жыл бұрын

It sinks into the low spots mostly the scratches the vacuum won't pick it up as easily. It works wonders as a visual guide to help make the scratches pop

@gc82 Жыл бұрын

Why does it keep saying 80 then 280 which is it

@boyanbyankow5192 28 күн бұрын

Hello do i undurstand right that the glaze can be applyed on sanded paint (P180) or bare metal without issue. The rule for bare metal for the bodyfiller is diffrent from the rule for glaze am'i wrong? Many thanks in advance

@3MCollision 26 күн бұрын

Yes ! You are correct.

@boyanbyankow5192 26 күн бұрын

Many thanks for you answer and attention. I appreciate that.

@conrak1 Жыл бұрын

Why did you guide coat when you leveled it out with 80 grit? seems like a waste of guide coat.

@DanBee123 Жыл бұрын

Great vid and I appreciate all the tips - fyi around 2:20 you begin sanding and you're not wearing your mask ;-)

@gc82 Жыл бұрын

Why do u say 80 and then 280

@hazelwoodgarage 3 жыл бұрын

Is that a sanding block with a vacuum or is it an air powered sander with vacuum?

@karpenterken1 3 жыл бұрын

It’s a Festool vacuum sanding block connected to a Festool hose and dust extractor.

@3MCollision 3 жыл бұрын

Hi Andy. Tom used the Festool Total Automotive Sanding System. You can check it out here: www.3mcollision.com/festool

@GT.Bugger 2 жыл бұрын

Dry guide coat.

@neilrobertson2069 3 жыл бұрын

@user-gw4qp7iy2y 3 жыл бұрын

This proudest don’t need the EP?

@bigblocklawyer 3 жыл бұрын

Geesus. A video about how to starve to death in a flat-rate shop. Want to get an amazing feather edge on filler, without glaze? Get a can of Rage Ultra, a roll of purple 3M 80 and a roll of purple 180, perfect your technique over decades, and get some epoxy on it. Next.

@CesarSanchez-nu3eo 3 жыл бұрын

Im an apprentice to autobody .. here in my shop no one applies dried guide coat ? and all that extra stuff any tips?

@khangdo9242 3 жыл бұрын

@@CesarSanchez-nu3eo Certainly there are some extra stuff here that you wont see in the body shop. I'm also an autobody apprentice as well and in the shop that I work at they don't use wax and grease remover to remove the dirt after sanding, we just use our air gun to blow it off. However, the guide coat that they show here really help you to be more accurate in your sanding. My Boss is a red seal technician and he always recommend me to use guide coat for your body filler or putty. The guide coat let you see all the low and high spot in your body filler so when you sand, you will be able to know when all your area are at the same level after sanding.

@dracolique 3 жыл бұрын

This is a video about how to do it right, not how to fuck around for decades before kinda-sorta getting it right.

@TheDGAF06 2 жыл бұрын

Lazy prep leads to shite work.

@TheKillermike83 2 жыл бұрын

Thats exactly how we do it at the shop i work at and never had a problem

@karsbkool Жыл бұрын

Waste, waste, waste those high dollar materials. Yeah, that's how you do it! A repair that size should have been ready for primer 10 minutes in. These guys need all you guys to use lots and lots of their product for their profit not yours.