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Pmwoods
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Group: Forum Members
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Hi, In first sorry for my English, i'm french...  I have a project for a dinner table in wood and epoxy. Two lumber with an epoxy river in the center. For this operation i think Glasscast 50 is the best. But i want to cover all the table with epoxy and for this operation, i don't know which product must i use glasscast 3 or another ? Another question will come later... Thanks for your answer Regards from frogs
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Warren (Staff)
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Group: Administrators
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Welcome to the Forum!
Yes you are correct in that you can use GlassCast 3. If you are pouring the final resin pour and then leaving the natural resin finish, then we would recommend doing the main pour in GlassCast 50 and the final surface pour of a few mm in GlassCast 3. This is because the surface of GlassCast 3 is every so slightly smoother straight from the pour. Thus if you do not plan any further finishing then that is the method to use.
If you plan to sand the surface perfectly smooth anyway, then it is not necessary to use the GlassCast 3, because any slight surface imperfections will be removed in the sanding process anyway.
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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Pmwoods
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Group: Forum Members
Posts: 7,
Visits: 31
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+xWelcome to the Forum! Yes you are correct in that you can use GlassCast 3. If you are pouring the final resin pour and then leaving the natural resin finish, then we would recommend doing the main pour in GlassCast 50 and the final surface pour of a few mm in GlassCast 3. This is because the surface of GlassCast 3 is every so slightly smoother straight from the pour. Thus if you do not plan any further finishing then that is the method to use. If you plan to sand the surface perfectly smooth anyway, then it is not necessary to use the GlassCast 3, because any slight surface imperfections will be removed in the sanding process anyway. Thanks for your quick answer ! I think that i apply a sanding process but i also want to put eventualy a hot plate directly on the table. And about glasscast 50 can i put some item like flower or organic things inside ?
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Hanaldo
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Group: Forum Members
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You will always get a mark of you are putting anything hot directly on the surface. Coffee cups, dinner plates etc. Don't put anything like that directly on the surface, use a coaster or a place mat under it otherwise you will mark the table.
Organic items should be fine as long as they are totally dry. So dried flowers are ok, but fresh flowers would both rot underneath the coating, as well as potentially cloud the surrounding epoxy through moisture contamination.
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Pmwoods
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Group: Forum Members
Posts: 7,
Visits: 31
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+xYou will always get a mark of you are putting anything hot directly on the surface. Coffee cups, dinner plates etc. Don't put anything like that directly on the surface, use a coaster or a place mat under it otherwise you will mark the table. Organic items should be fine as long as they are totally dry. So dried flowers are ok, but fresh flowers would both rot underneath the coating, as well as potentially cloud the surrounding epoxy through moisture contamination. Thanks If i want to sand the support, which grit must i use ? 1000, 2000 ? and after which product for polish and buffing ? I want to make an open floor plan associate to my table build in medium or plywood. Does Glasscast 3 is adapted for this application ? I think that i added pigment in the epoxy to make a color effect.
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Warren (Staff)
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Group: Administrators
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When sanding, to get to a high gloss, work your way up the grits to 1200-1500 and then you should be able to polish the resin back to a high gloss.
GlassCast 3 can be used on flooring to give a high gloss finish. You can also use epoxy compatible pigments if you so wish.
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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Pmwoods
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Group: Forum Members
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Hi,
To make a river table with glasscast 50. I read that we must apply two coat of 20mm each.
First coat must be dry before coatin the second ?
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Warren (Staff)
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Group: Administrators
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Yes with river tables the extra wood all around acts as insulation so the heat builds up much higher than in other medium so you need to limit it to around 20-25mm thickness per pour. The ideal time for the second pour is when the first is firm but still tacky, at which point you can pour the resin straight on with no surface preparation needed.
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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Pmwoods
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Group: Forum Members
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Hi, I receive my order last week about glasscast 50 and glasscast 3 but i think that there is a problem about glasscast 50. The resin seems white instead of the over package. Look at the photo --> left: glasscast 3 / right: glasscast 50 What can i do ? all products are in the same area and the T° is an average 20°C. Thanks for your answer  Bye
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Warren (Staff)
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Group: Administrators
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I’m sorry to see that your resin has hardened – the good news is that it is entirely reversible. The GlassCast 10 and 50 resins are sensitive to low temperatures and if the resin gets very cold (either in storage or transport), it can crystalise, looking milky and becoming quite hard in the process; this does not damage the resin at all and can be reversed by warming the resin in its container with the lid securely in place.
You’ll need to hold it at 40-50°C for a few hours as it does take a bit of energy to reverse the crystallisation. You could achieve this by sitting it directly onto a radiator, putting it into an oven on a low setting or standing the container in hot water (although you would have to change the water a few times to maintain the temperature) but this will return the resin to its clear, liquid form ready to be used for your project.
If you have any issues at all, please don’t hesitate to get in touch.
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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