Re: Looking to paint my boat inside and out
"YD" I value what ya' have to say. So I am asking when you say SEM Weld is not a good idea, can you provide some reasons please.
I have used SEM weld for years in the maint of a public transit fleet, the same as one might use JB weld expect that this product flexes. It is made to be used for poly bumper repairs.
You say body shop fillers, makes me feel you are familiar with SEM weld. I would like to know the negatives.
Thanks, STURDAVJ
Dont get me wrong.. the 'plastic weld' .. 'JB' weld .. 2 part epoxy mixes .. etc. can be used for some repairs ( not all ).
But Why would you want to us them ? For quickness ? Ease of repair ( might as well use bondo type fillers ).
That SEM weld is for Plastic ( like bumpers ) not the same as boats. I guess you could use it if you have it handy..but I would not go out of my way to buy it for a few small holes when you can get some 3 min epoxy in a double syringe plunger for a few bucks.
If you like em so much you should probably list em so everyone can benefit from your knowledge. I've use the 3M and it wasn't Crap for me. Seemed to work very well and for holes no bigger than a quarter I think it will be just fine.
I would never use filler out of a can to fix a hole the size of a quarter ( much less a nickle or even a penny depending on where it was located ).
The filler will pop eventually. Not good after you have gone through the stages of filling,fairing,prep,prime and paint just to find a year or two have the repair fail.
As far as the 3m filler itself...I have found that the fiberglass vinylester filler never really cures correctly. It leaves a lot of pinhole perosity after sanding.
....
For a boat owner .. the basic Material you will need for repairs is Poly resin. After that you can add fillers or glass to it. Anything out of a can is Overpriced and most times not correct for the repair that you are trying to fix.
If you are finishing with gelcoat .. then the Materials are going to be Poly resin,cabosil,gelcoat and sometimes CSM.
Thats it .. thats all you need ( aside from the obvious acetone,rags,mekp etc ..)
If you want to go shopping around for tubes of this or cans of that .. go for it. You dont Need them. Personally I think its a waste of $.
Resin,Gel,Cabosil,CSM .. Key to most repairs for a DIY'er.
YD.