Blade Sealing with Haifu Seamoon?

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It's not a boat dude. You'll make the blade stiff as a rock, there's specific sealant made from companies, they're very thin and work well for blades. Boat sealant will ruin the blade.

Some people do use haifu for sealing and they swear by it. Haven't tried it.
 
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Can the Haifu Seamoon booster used as a sealer for the blade? There is a video on YouTube?


Second question: Can a Yacht varnish be used as a sealer? Maybe it can be diluted with thinner?
That is not seamoon he is using, it is haifu "speedglue" or VOC based glue. (you can still buy it as Haifu Dolphin or whatever the name of it)
The VOC solvent evaporates quickly so it doesn't do weird things with your top ply, (especially limba like in the video) so it protects the top ply from splintering.
 
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Can the Haifu Seamoon booster used as a sealer for the blade? There is a video on YouTube?


Second question: Can a Yacht varnish be used as a sealer? Maybe it can be diluted with thinner?
You can absolutely use yacht varnish and it will seal your blade really well but it's probably a bit overkill. If you are a professional or a player with an incredibly deft touch then you may notice a difference in hardness of the blade using yacht varnish but in it is unlikely.
Never heard of booster being used as a sealant, can't really imagine why you wouldn't just use a regular wood sealer tbh
 
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In a similar video he answers that is VOC glue Haifu Blue Whale:
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Used to protect wood from splintering.


See
On another note: I wouldn't ever consider using booster and such chemicals on the wood directly, if it can curl the rubbers and sponges like this, what would do to the glue that sticks the fine wood layers together? would it be safe?
 
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Yacht varnish, specifically gelcoat, is designed to be a thick layer and protect against bumps.
Gelcoat is still slightly flexible, actual varnish less so.
I would not use either on a blade, but if you somehow managed to get it on thin enough it will probably be ok
 
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