UV-cured filler experience?

[ChiefPilot]

Anyone here have any experience with UV-cured body filler? I've seen this stuff and similar used by various YouTube auto paint/body work channels and it seems like it's pretty great stuff - ultrafast cure time via UV flashlight or sunlight exposure, easy sanding, little/no waste (esp. as compared to dry micro), no shrinkage, etc. Major downside seems to be really only the cost unless I'm missing something else.

Would be used under 2K primer and paint systems.


Link

Thoughts?

 

[wirejock]

Try it on some test coupons. Applicatuon, cure, sanding, painting, etc.
Nothing worse than finding out bad news the hard way.
I stick with epoxy based for everything except I do use auto body glazing to fill pin holes and scratches before paint. I suspect that product will be fine for paint. Question is how well it bonds to fiberglass epoxy. Probably fine.

 

[ChiefPilot]

Try it on some test coupons. Applicatuon, cure, sanding, painting, etc.
Nothing worse than finding out bad news the hard way.
I stick with epoxy based for everything except I do use auto body glazing to fill pin holes and scratches before paint. I suspect that product will be fine for paint. Question is how well it bonds to fiberglass epoxy. Probably fine.

For sure. But before going to the expense of buying it plus a UV cure light, I wanted to see if anyone else in the community has tried it. Epoxy works of course and nothing wrong with it.

 

[RV6_flyer]

I replaced my windscreen a year or two ago. I used a little Colad Fast Curing System Fine UV Putty to fill small defects. I got the idea of using it from The Paint Society YouTube channel. They also suggested a less expensive UV light. Before using it on the airplane, I made a BIG sample BLOB of it to see how it cured in thicker thickness than it recommended. The ~1/4" pea cured very hard with the lower cost UV light.

Micro was used to fill in large areas. I think I did two coats of micro but I did the small imperfections with the UV Putty. I think the results were better than the first time almost 30-years ago.

 

[ChiefPilot]

I replaced my windscreen a year or two ago. I used a little Colad Fast Curing System Fine UV Putty to fill small defects. I got the idea of using it from The Paint Society YouTube channel. They also suggested a less expensive UV light. Before using it on the airplane, I made a BIG sample BLOB of it to see how it cured in thicker thickness than it recommended. The ~1/4" pea cured very hard with the lower cost UV light.

Micro was used to fill in large areas. I think I did two coats of micro but I did the small imperfections with the UV Putty. I think the results were better than the first time almost 30-years ago.

Thanks, that's really helpful. I learned of the stuff from the same place, The Paint Society, in the course of getting ready to replace my windscreen as well. I didn't want to try something new on a big project but it was interesting enough to file away for the next one.

 

[lr172]

Thanks, that's really helpful. I learned of the stuff from the same place, The Paint Society, in the course of getting ready to replace my windscreen as well. I didn't want to try something new on a big project but it was interesting enough to file away for the next one.

Sounds like a cool product. Biggest hassle in working with filler is the very short potlife. Unfortunately have never tried it, but suspect it is as strong or stronger than peroxide cured filler. Some of the strongest stuff out there is uv cured. Modern dental crowns are now uv cured composites and that stuff is strong and hard. Their adhesives are as well.