carsonschaos
New member
What grit can you get away with between multiple
coats of epoxy.
I'm prepping a tank with epoxy only.
coats of epoxy.
I'm prepping a tank with epoxy only.
Epoxy on epoxy
- Thread starter carsonschaos
- Start date
Slamin Sam
New member
Epoxy primer is not made to fill, & is not recommended for multi coatings. If it has a good coating of epoxy already & you need to fill in some areas I would use a high builder 2K primer. Plus the 2K is alot easier to sand also.
Sam
Sam
I may be misunderstanding the question but I use the HOK 2 part Epoxy primer and it sands as good as any primer I've ever used. I apply two coats over any bodywork and 2 or 3 coats over the whole project. Then I spray some black primer (usually rattle can) over the HOK to use as a guide coat and wait 12-24 hours before sanding everything. I've waited as long as a week to sand it and it sands the same. HOK primers are about as high build as you can get.
I only do tanks, fenders and helmets using mostly HOK and The KP2CF primers have never failed me.
I only do tanks, fenders and helmets using mostly HOK and The KP2CF primers have never failed me.
Last edited:
most epoxy has a 6 or 7 day window for wet on wet application.we use it for a sealer only. any spots that nead filler i scrub up with 240 grit. it can be painted over its just a real prick to final sand.clogs paper i find.i've not used the hok product before but generaly speaking epoxy has little build compared to a high build 2 k primer.if you have no major flaws to fill and have no problem sanding epoxy will work fine as a final primer.a lot of guys like to use it as a final sealer before paint .no sanding just pretend its your first coat of paint.read hoks tech sheet for wet on wet times.good luck.
Last edited:
If you get a chance to use it try the HOK. It will fill up to 24 grit sanding cuts with 2 coats. I use either 40 or 80 grit paper to final sand before the primer and it will fill up the sanding marks easily. Flash time between coats is less than 10 minutes in 70 degree plus temps. You can bake it at 140 for 2 or 2 1/2 hours and it is ready for base coats or wait 12 hours or so in 70 degree+ temps. I promise I don't work for or own stock in HOK I just love working with it.
The HOK is a 2k epoxy that mixes 1:1 with part a and part b. You can also reduce it up to 10%.
The HOK is a 2k epoxy that mixes 1:1 with part a and part b. You can also reduce it up to 10%.
carsonschaos
New member
epoxy
I knew that epoxy does not need to be sanded, but I read on another forum about people using epoxy only in their prep.
What I've done so far.
**DA the paint off the tank using 80 grit**
**shot on a couple coats of epoxy**
**filled a couple of dings and the relief were the emblems were**
**Sanded the filler to shape with 80 grit along with the epoxy, back to metal in some areas**
**Shot on 2 coats of epoxy**
It should be really close to right.
I planned on guide coating and blocking it with220.
If it comes out good, I'd lay a thinned coat of epoxy, before the first coat of base.
I have 2 side covers that I epoxied and blocked with 229.
It was harder than other primers but it wasn't bad.
I just wasn't sure if 220 is going to be enough bite for epoxy after it has cured.
Or if I go 2K primer, what grit do I need to hit the epoxy with after it's cured?
I knew that epoxy does not need to be sanded, but I read on another forum about people using epoxy only in their prep.
What I've done so far.
**DA the paint off the tank using 80 grit**
**shot on a couple coats of epoxy**
**filled a couple of dings and the relief were the emblems were**
**Sanded the filler to shape with 80 grit along with the epoxy, back to metal in some areas**
**Shot on 2 coats of epoxy**
It should be really close to right.
I planned on guide coating and blocking it with220.
If it comes out good, I'd lay a thinned coat of epoxy, before the first coat of base.
I have 2 side covers that I epoxied and blocked with 229.
It was harder than other primers but it wasn't bad.
I just wasn't sure if 220 is going to be enough bite for epoxy after it has cured.
Or if I go 2K primer, what grit do I need to hit the epoxy with after it's cured?
Last edited:
Slamin Sam
New member
The only epoxy's I've used is PPG's & Dupont's, both high dollar & cheaper lines & they are very tough to sand. I usually sand with 80 or 180. then shot my 2k or I will use a polyester type primer if I need a real high build.
Sam
Sam
220 - 320 should be fine for your high build or epoxy.you dont have to use epoxy as a sealer over high build if you have no rub throughs .you can final sand (i go with 400 dry if i'm gonna polish 6-8 if not)and paint.i've got to try this hok.trouble is i'm in northern ontario canada.it's a special order from my jobber.cyas
You can go to www.coastairbrush.com and get some sent to you can't you? I ask because I'm not sure if there are any shipping issues for paint. Coast and some others offer smaller amounts of paint so you can try it out before buying larger amounts. There's also a few people selling it on E-bay.
For the HOK I sand the primer with 400 wet or 220-240 dry paper until I'm happy with it. Since it sparays on at about 1 mil per coat you have to try pretty hard to sand through it.
Good luck,
AJ
For the HOK I sand the primer with 400 wet or 220-240 dry paper until I'm happy with it. Since it sparays on at about 1 mil per coat you have to try pretty hard to sand through it.
Good luck,
AJ
Pagan Gold available as a urethane candy, a mixable tint that is added to clear coat and also as a base coat candy that can be clear coated for a kandy finish. It's a great color but I wouldn't know how to start to describe it. It's very rich and is used a lot for true fire. It is not a metalic as far as I know but in it's candy base coat form it has pearl added to it.
The paragraph below is from the HOK site.
House of Kolor® Kandies are available is three versions:
a) UK Urethane Kandy System – While House of Kolor® has updated and improved the resin system over the years, this is the true candy paint as seen back in the '50's. Uses only organic pigments and very unique UV screening agent in high levels to prevent fading. One of the most important features is the unique chemistry used in the urethane resins that allow them to be very fl exible yet extremely hard at the same time. This allows our candy paint jobs to be built in excess of 15 mils without cracking, splitting or delaminating. No other company can make this claim!
b) KBC Base Coat Kandies - This product is a hybrid between our UK pigment technology and our Shimrin® Base Coat Technology. KBC’s achieve a similar Kandy look as our UK candies but provide the ease and productive speed of our Shimrin® Bases.
c) KK Koncentrates – Kandy Koncentrates are the same dyes and organic pigments used in our UK's and KBC's. Add them to strengthen or custom-blend special colors in our UK Kandies. You can also add them to our SC01 Lacquer clear to create lacquer candies or as a tint in our Ko-Seal®, SG100 Intercoat clear or Shimrin® Bases. A very versatile product!
If you go here http://www.houseofkolor.com/hok/news/HOKDownloads.jsp
You can download the HOK catalogs that will answer any questions you have.
The paragraph below is from the HOK site.
House of Kolor® Kandies are available is three versions:
a) UK Urethane Kandy System – While House of Kolor® has updated and improved the resin system over the years, this is the true candy paint as seen back in the '50's. Uses only organic pigments and very unique UV screening agent in high levels to prevent fading. One of the most important features is the unique chemistry used in the urethane resins that allow them to be very fl exible yet extremely hard at the same time. This allows our candy paint jobs to be built in excess of 15 mils without cracking, splitting or delaminating. No other company can make this claim!
b) KBC Base Coat Kandies - This product is a hybrid between our UK pigment technology and our Shimrin® Base Coat Technology. KBC’s achieve a similar Kandy look as our UK candies but provide the ease and productive speed of our Shimrin® Bases.
c) KK Koncentrates – Kandy Koncentrates are the same dyes and organic pigments used in our UK's and KBC's. Add them to strengthen or custom-blend special colors in our UK Kandies. You can also add them to our SC01 Lacquer clear to create lacquer candies or as a tint in our Ko-Seal®, SG100 Intercoat clear or Shimrin® Bases. A very versatile product!
If you go here http://www.houseofkolor.com/hok/news/HOKDownloads.jsp
You can download the HOK catalogs that will answer any questions you have.
hoss
New member
i think it was the 2k primer that i saw at rhino's workshop in Joplin mo. it was directly painted on to some aluminum. they bent the aluminum, put it in a press, and hit it w/ a hammer. the stuff stayed on w/o flaking or anything. awesome stuff if it's the same that im thinking of.