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As for EDP primer, in the past I've run a da sander with 80 grit over a spot or two that needed some fill via poly glaze. I've never applied regular body filler over EDP just poly glaze to correct some very minor surface imperfections. I do apply filler over epoxy because I like the added benefit of the epoxy protecting the metal.Hi all. Never done body work before. I have a 1966 impala 4 door sedan. For the most part the body is okay, some rust through rear quarters but this…'68 Coronet R/T wrote:I always spray another coat of epoxy after filler work.It will seal the filler, cover any bare spots and reactivate your open window for re-coat. Wait about an hour after you spray the epoxy and then go with your poly primer or 2k depending on which way you go.The reason for filling over the epoxy us fillers can absorb moisture so you seal off the panel so it doesn't cause rust problems later. ... The real issue is putting filler over etch primers. This is a big no no but over epoxy it is better than fine. ... Consequently, getting the bare steel sealed first is a high priority. In a body shop ...If applying filler over a silicon-bronze TIG-weld, apply a coat of epoxy primer before spreading filler. Or, use a filler that is designed to apply directly over this kind of …Yes, epoxy to seal bare metal then skim coat, then epoxy to seal that, then 4 coats of poly to have enough primer for heavy blocking to get the body as straight as possible. It also builds thick enough to be able to sharpen/straighten the details of body lines, edges, etc. It's more stable than 2K and doesn't shrink like 2k or epoxy.Mar 5, 2014. #4. This scenario is partly why we and a lot of other resto type people use epoxy at least through the initial stages of blocking. Low spots can be filled on top of epoxy with complete confidence. Filling on top of …I do most my work over high build or 2k primers and never had a hitch.Plenty of show car paint jobs to prove this that are years old.Just make sure to read the directions on what ever filler you use and you rough up the primer with what they suggest. The best way to do it from the begining is to epoxy or etch prime the bare metal, apply filler ...3484 posts · Joined 2002. #7 · Dec 20, 2006. Applying filler over urethane primer is not the way to go. It should be stripped to bare metal, prepped with 80 grit and sprayed with epoxy primer, then any filler work can be done on that. The urethane will not have the adheasion needed for supporting the filler.from cocoa, FL. spray your epoxy sealer when you are completely finished with your body work, wait for it to flash, then start laying down your color. The sealer helps keep your body work from sucking up your color and causing blotchy areas. ckunsman89, May 27, 2013. SHARE POST #24.I know you can apply filler over epoxy primer.I used K-36 when I blocked my car and did use some 2 part glazing putty in a few spots though but that goes on very thin. I wanted to know that same thing and had my local paint supplier call PPG. They said no. They have a primmer you can use under filler but not k 36.Any area of the epoxy that was still untouched and needed filler work, I scuffed with some 120, made sure it was clean (grease and oil free), then applied the filler (Evercoat Rage GOld) right over it. No problems. Tom Rightler, MCC VP & Newsletter Editor. 1970 SS Best ET: 12.31@108 MPH.Oldtimer. Aug 27, 2015. #2. I always do epoxy over bare metal,body work, then two coats of epoxy, it will soak up a little over the filler, no worries. I then block the epoxy just because I found out how much more you can block out with a few coats of epoxy, then I go to 2k primer, block, seal with epoxy, then base, clear.It will all be valspar paint I just haven't decided whether its going to be 2k epoxy or 1k etch and then primer. The advantage of epoxy is high build and filler over or under the paint. It seems like that would make it a lot easier. Plus it's a tougher undercoat than acrylic laquer primer. I'm just not sure on the price I haven't enquired yet.The HYBRID EPOXY PRIMER with the HYBRID FILLER HARDENER is intended for the final stage of substrate preparation for the application of decorative coatings. The filler does not clog sandpaper, which makes it very easy to dry sand for a high quality finish. SUBSTRATES. Steel - new parts and body panelling.Most body fillers are polyester based, like boat building fiberglass resin. Polyester resins are hydroscopic, they absorb moisture from the air. If the humidity is above a certain point, the polyester resin base for body fillers will absorb enough moisture to rust the bare steel. Every time the can is opened, it absorbs some more moisture.When using etch primer the filler should go on to the bare metal first and then all is covered with etch primer. The reason being that the acid/chemicals in the etch primer "could" be trapped under the filler and cause it to break down if the filler is applied over the etch primer. When using epoxy primer it doesn't matter which goes first.As long as you let the primer fully cure and then scuff the surface it will be fine. As a matter of FACT body filler works better when applied over a protective primer (epoxy or self etching) simply because the primer helps protect the bare steel from moisture. Body filler is extremely porous and will absorb moisture just from the air.The PPG VP2100 Polyester Primer tech sheet says: "Apply VP2100 over DPLV 2.1 Epoxy Primers after an overnight dry and light sanding." As opposed to the DPLV tech sheet which says: "to topcoat: 60 minutes at 70F" As opposed to Evercoat who says: "Wait 72 hours before applying Featherfill G2 and scuff or sand the epoxy"Epoxy primer-filler/recoat questions. Getting ready to start the priming process on my car, basically doing all of the non body areas first, subframe, firewall, underside, trunk area, door jambs . I'm going to have all of these areas media blasted first, then apply SPI epoxy primer. My concern is how to handle these areas after the epoxy has cured.mitmaks said: all the body shops put bondo right over metal. Actually, some manufacturers require that epoxy primer be applied to bare metal before filler, so that may not be completely true. You will find very few collision shops using epoxy primer, mainly because of the time restraints.

Feb 22, 2024. #2. More epoxy works great over filler, if your filler is blocked flat and sanded to a high enough grit- at least 180. Shoot three coats of epoxy, go easy on the first coat but the second and third can be sprayed wet for more build. If more build is needed you can spray more after a few days, but within the recoat window.If time allows, it's always best to apply filler over the epoxy after it has set for 24-48 hours. If you choose to do the filler work over bare metal, the epoxy can be sprayed over the sanded body filler. Seam sealers are typically used over epoxy. Fiberglass filled fillers or other structural products are used before epoxy primer Hope this ...You can put down say two coats (over properly prepped bare metal). Do not use any metal conditioners, etc under the epoxy. Never use etch primer under epoxy. Later you can go back into it, and do your body work right over the epoxy (after 7 days scuff it with 180 grit paper for filler).Epoxy also works well over top of body fillers (good to know if you should uncover previous body repairs) and should be reapplied to seal any polyester filler before moving on to other coats of primer or paint. Epoxy primers can be sprayed, rolled, or brushed on, but have a limited working time (a.k.a. - 'pot life') once they're ...

Once I spray 2 coats of SPI epoxy primer onto the bare metal with an 80 grit DA scratch, I can apply body filler over (unscuffed) epoxy primer 24 hours after …Pro SeriesDiscover the power and precision of our products, designed specifically for automotive refinishing professionals. Fast-drying, 2K acrylic, 2:1 Ultra HS clear coat, suitable for full and spot panel repairs. Delivers an excellent high gloss finish at one and a half coats. Dries in 5…. 2K acrylic, 2:1 Ultra HS clear coat, suitable for ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Filler over epoxy or filler on bare metal is one of. Possible cause: If applying filler over a silicon-bronze TIG-weld, apply a coat of epoxy primer befo.