How to Repair a Rust Hole with Fiberglass - No Welding!

[Music] for years auto body repair shops have used fiberglass for rust repair because it bonds so well to metal so if you don't have a welder and you still want to do some bodywork the method you're about to see may be the next best choice the first step is to grind the area clean using a tool like this this is a sander or a grinder with a fiber resin 36 grit disc on it or you can use a grinder like this or sander like this also with a 36 grit fiber resin disc on [Music] hmm [Music] [Music] hmm wow next since we can't get to the back side this is two layers there's a layer here and a layer back here we can take a nozzle like this and stick it in here and blow all of that dust and maybe old leaves and debris out of there so that when the water comes down here it has a way to drain out we want it clean behind this you can also use a sandblaster to get into the pits or if you don't have a blaster you can get it with a wire wheel on a drill we'll just hit it with the blaster real quick and with the wire wheel sort of the same you're just going to do that then you're going to take a hammer looks just like this guy right here and just tap down the area you want it lower than the original surface so we're just going to tap down [Music] a little bit more up here [Music] um [Music] and it's still good right here it's good all this is still good right all around there it's good here it's a little bit weak and we're going to blow this clean hmm after you have the area ground clean and knocked down a bit we can begin to apply the fiberglass resin and cloth once you've mixed the resin according to the instructions and you've cut your pieces of fiberglass cloth you can then begin to apply them so we're just gonna brush on a layer of the fiberglass resin there's a nice layer on there and i actually really like doing this this is i like doing i don't know why this stuff really sticks well i mean look at that just real nice there and i'm gonna go right over it and this stuff's hard to fold over so that's why i'm not folding it over the edge but i'll put it right on now they do make a different cloth this is the woven and then they have uh just i think it's called free strand or something like that and we're just gonna saturate that and remember this is lower than this so after we get this done we're going to grind it just a little bit this will rough it up so we can put some filler on it and i'm going to put three layers of fiberglass claw on it that's our first layer and i get a little bit bigger as i go that's good there get those strands up there and you just take your time and dabbing it works real good like that i've heard of people using a roller but i've never done that and if you brush it in one direction you can get it to move and a good thing is that we blew that area clean back there behind that so now it has it's able to drain the salt water and debris will be able to drain and you can even drill a hole back behind there to make sure that this fender drains real well good for that and we're gonna do one more piece that guy think i mixed up this enough and like i said again this is low this is low a low area right now because we tapped it down so we're just gonna get this all nice and saturated and then we're gonna let it harden overnight and we'll come back and grind it and fill it after the fiberglass hardens we can rough up the area with a smaller grinder and this has 36 grit on it and that's a fiber resin disc we're going to try to preserve as much of this fiberglass cloth as possible so we're just going to grind it lightly and rough it up so that the filler sticks real well today we're going to be using some fiberglass reinforced filler and this happens to be called bondo glass and i'll list the products in the description and then we'll we'll finish it up with regular filler but this is supposed to be moisture resistant now we'll just throw a layer of this stuff on there just for some extra security and it is a bit tougher to spread than regular filler and it is a lot harder to sand than regular filler but i think it'll help out and that's good we'll leave that hardened come back cheese grate it and sand it and if we have any low spots we'll fill them in with regular filler and before it gets too hard we're going to just knock it down with a cheese grater blade or is called a stanley shear form and it just knocks so right so and that should be good we'll let that harden and then hit it with a smaller block with some 36 grit so so so [Music] and i do have one little low spot here and here and maybe right in here i'll fill those with some regular filler sand them i'll be back to give it a coat of primer [Music] so so foreign [Music] so [Music] um [Music] [Music] i hope you enjoyed this video on an alternative to welding that can actually hold up well if the panel can drain and dry out if you did and you'd like to get my latest videos don't forget to hit the subscribe button

Channel: Lakeside Autobody

Views: 485,281

Keywords: How-To, Repair a rust hole with fiber glass, fiberglass cloth for automotive rust repair, fiberglass, bondo, automotive body filler, fix rust holes with fiberglass, bondo glass, reinforced body filler, no welding, rust repair for cars, no welding rust repairs, Lakeside Autobody

Id: Zp5gmDC7KQI

Length: 16min 54sec (1014 seconds)

Published: Fri Nov 13 2020