HI, ive finished glassing my board and itll have a sanded finish, but do you need to lacquer it or can you just bring it to a high grit finish without lacquer?
thanks!
…hello,
you can have different finishes on a board
some are matte some are glossy
for ex.:
sanded hot coat (not micro seal the board) matte finish
sanded gloss (this one is the one that most boards have today) seal the board satin finish
gloss (seal the board)
speed finish (seal the board semi matte or satin finish)
acrylic laqueur (glossy but with a texture somewhat like car paint (its a car clear) ) plus not nice and strong to the scratches like a real resin gloss
sanded hotcoat (or pro-finish) is the most common finish for clear boards and shorties. boards with tints/pigments are usually glossed and either brought to a sanded finish (600 w/d) or polished.
pro-finish is sanded to 240 or 320 and sealed with an acrylic teflon (expensive and not worth it for one or two boards), i have seen people use mop and glow as well.
i dont know about the laquer, never seen it used on boards but i have seen many fin companies use it on their fins and it seems to work ok
just my thoughts, take them for what they’re worth. good luck.
as reverb says
the board must be getting another coat after sanding the hotcoat. this seals the board properly and they last a lot longer. anything less is piss poor
so i need to put something on after sanding?
If you want a sanded finish board then do a hotcoat, sand with 120,220, then 320, and you're done. I don't know what this talk of spraying on acrylic and stuff is, I just bring my hotcoat to 320 and thats it(its totally sealed).
For a gloss finish sand the hotcoat with 120 then gloss coat and sand up to 500 or 600 and polish
no your wrong boards get seal coat after sanding coat. otherwise they are no good. or a throw away
don, you sand the board too about 100grit then do a thin coat of resin over the top with a brush. this you go straight to 320 or 400 grit and then its done
its called a finish coat and was industry standard. it is a seal coat and you can polish it out if you like or leave at 400 grit. anything less is substandard product or throwaway performance board.
some place uses acrylic clear paint to seal instead but the polyester finish coat adds longer life and dent resistance
a gloss is sanded to 1000 or 1200 grit and then polished
as reverb said
“sanded gloss (this one is the one that most boards have today) seal the board satin finish”
Does this apply to epoxy as well?
How is it that a hotcoat is not 100% sealed by sanding to 320. This is what I've always heard, cause its not like your sanding through your glass job, it should be water tight. Do you guys do 2 hotcoats on your high performance short boards? I have talked to multiple guys at fiberglass hawaii, foam ez, and other shaper/glassers, and they say the same thing that I am. this is the first time that I've heard about sealing a board thats sanded to 320. As long as your board has no cloth sand throughs or pin holes you should be in the clear, right? I seal posca pinlines and other artwork with Krylon clear matte, but other than that...Man, you guys have really confused me.Are we all on the same page talking about PU/PE contruction? And in the archives, there are several articles stating that sanding past 500 or600 is useless for a polished gloss finish, soooooo I dont know what this talk of sanding to 1200 is.
maybe the reason everyone thinks eps is so great is cuz they dont know how to make a poly board.
good board builders do a finish coat after sanding. read what i wrote. you sand to 100 grit and then finishcoat.
“And in the archives, there are several articles stating that sanding
past 500 or600 is useless for a polished gloss finish, soooooo I dont
know what this talk of sanding to 1200 is.”
well that is wrong
i can see i am wasting my time here
this is why people buy chinese boards . they are made better
listen to reverb
im with Silly and reverb
Ive been taught that when hand laming a board there are three steps
Laming
hot or sand coat
gloss or seal coat
the pro's are here,,, LISTEN UP!
Howzit astevens, I am not sure why others put a seal coat on their sanded finishes but I did it to keep the board from getting dirty really easy. I've seen a brand new board and after a couple of go outs it's full of dirty finger marks and other dirt. Aloha,Kokua
Kokua, that makes sense to seal it with an acrylic to avoid fingerprints and dirt. But as for sanding with 100 grit and then re hotcoating then doing 320 or 400, to me, that seems like a useless extra step, and could possibly make a high performance board heavier. I'm not here to piss you guys off, I was just confused, and was letting you know what I had heard. I think you guys are super knowledgable when it comes to surfboard building, and I always like to hear what you guys have to say. Thanks.
almost no standard shortboards have a gloss coat on them. sanded hotcoat is standard. some have a spray finish for looks or to seal artwork. a gloss coat will make the board more durable and heavier and will seal any potential pinholes that you may have. there is nothing wrong with a sanded hotcoat.
yeah buy a chinese made board they are cheaper and made better
a finish coat was industry standard for about 40 years
the standard has obviously dropped
hey grasshopper how much heavier does a finish coat make a performance shortboard?
Howzit astevens, I just sand to 320 then put acrylic finish andnot the spray can type but the acrylic sealer that Fiberglass Hi sells. Aloha,Kokua