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Author Topic: Hot coat poly or eppxy  (Read 6160 times)

scubasteve

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Hot coat poly or eppxy
« on: November 11, 2019, 02:30:38 AM »
Hi guys

Just a question for the glassers out there.
Just finishing off my sup foil board.
 I was just wondering if I could use polyester over epoxy just for the filler coat? Any advantages or disadvantage ?
cost is a big one for me and drying time.
I was just wondering if it cracks or delaminates etc.
I will rub the board first for it to key.
Cheers
Scuba
« Last Edit: November 11, 2019, 03:11:02 AM by scubasteve »

Dwight (DW)

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Re: Hot coat poly or eppxy
« Reply #1 on: November 11, 2019, 03:18:57 AM »
No.

Itís been done not as a filler coat, but as a second gloss coat, just to get the shiny poly look. People stopped doing this because the flex rate is different between the two, causing delam.  Today, glass shops clear coat with paint to get the glossy look.


scubasteve

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Re: Hot coat poly or eppxy
« Reply #2 on: November 11, 2019, 04:00:18 AM »
Thanks Dwight

I will stick with epoxy then.

Cheers
Scuba

PonoBill

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Re: Hot coat poly or eppxy
« Reply #3 on: November 11, 2019, 05:33:20 AM »
I did it on the F18 downwind board I mostly reskinned. Never again. Came off in chunks a month later. The board is sitting behind my shop in the weeds waiting for me to do something else stupid with it.
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

scubasteve

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Re: Hot coat poly or eppxy
« Reply #4 on: November 12, 2019, 05:16:03 AM »
I did it on the F18 downwind board I mostly reskinned. Never again. Came off in chunks a month later. The board is sitting behind my shop in the weeds waiting for me to do something else stupid with it.
I'm sold thanks Bill, I have just used epoxy.
Not to long now and she will be finished.

surfcowboy

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Re: Hot coat poly or eppxy
« Reply #5 on: November 12, 2019, 08:00:00 PM »
Great news man. I hate seeing preventable problems. Canít wait to see your board.

scubasteve

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Re: Hot coat poly or eppxy
« Reply #6 on: November 23, 2019, 02:34:50 AM »
Hi Guys
I have finished the 6'8"
Went out today in very small marginal conditions, very surprised what a weapon
Lovely ride.😜

surfcowboy

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Re: Hot coat poly or eppxy
« Reply #7 on: November 23, 2019, 08:17:08 PM »
Dude, thatís nice. Also love that it works.

 


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