Glasscast 50


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Sean Walsh
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I'm using Glasscast 50 to fill a mold over a photo. Despite spraying several coats of Acrylic lacquer, and coating the edges carefully, I'm still getting the resin creeping or leaching into the edges of the photo, discolouring it's appearance. Whatever I use must be fully transparent and not react with the resin cure process. Help! What can I use to prevent this happening???
Warren (Staff)
Warren (Staff)
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Generally we find what works best is a thin brush coating of PVA wood glue over the photo and edges.  Once cured, it cures translucent and will form a thin skin over the photo so that the resin cannot get under so easily.  A lot of lacquers, especially if rattle can, may soften with the heat generated with the resin cure and that is enough sometimes to lift the edges and expose the paper to resin soak in.  If you really struggle, you can PVA both sides. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Sean Walsh
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Warren (Staff) - 9/1/2020 4:11:54 PM
Generally we find what works best is a thin brush coating of PVA wood glue over the photo and edges.  Once cured, it cures translucent and will form a thin skin over the photo so that the resin cannot get under so easily.  A lot of lacquers, especially if rattle can, may soften with the heat generated with the resin cure and that is enough sometimes to lift the edges and expose the paper to resin soak in.  If you really struggle, you can PVA both sides. 



Sean Walsh
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Warren (Staff) - 9/1/2020 4:11:54 PM
Generally we find what works best is a thin brush coating of PVA wood glue over the photo and edges.  Once cured, it cures translucent and will form a thin skin over the photo so that the resin cannot get under so easily.  A lot of lacquers, especially if rattle can, may soften with the heat generated with the resin cure and that is enough sometimes to lift the edges and expose the paper to resin soak in.  If you really struggle, you can PVA both sides. 

Thanks Warren. I'll try this and let you know the results.

Sean Walsh
S
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Sean Walsh - 9/1/2020 8:39:51 PM
Warren (Staff) - 9/1/2020 4:11:54 PM
Generally we find what works best is a thin brush coating of PVA wood glue over the photo and edges.  Once cured, it cures translucent and will form a thin skin over the photo so that the resin cannot get under so easily.  A lot of lacquers, especially if rattle can, may soften with the heat generated with the resin cure and that is enough sometimes to lift the edges and expose the paper to resin soak in.  If you really struggle, you can PVA both sides. 

Thanks Warren. I'll try this and let you know the results.


Sean Walsh - 9/1/2020 8:39:51 PM
Warren (Staff) - 9/1/2020 4:11:54 PM
Generally we find what works best is a thin brush coating of PVA wood glue over the photo and edges.  Once cured, it cures translucent and will form a thin skin over the photo so that the resin cannot get under so easily.  A lot of lacquers, especially if rattle can, may soften with the heat generated with the resin cure and that is enough sometimes to lift the edges and expose the paper to resin soak in.  If you really struggle, you can PVA both sides. 

Thanks Warren. I'll try this and let you know the results.

Warren, despite using Gorilla Wood Glue and carefully coating the edges several times, the resin is still seeping in. Any more ideas please??

Warren (Staff)
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Try a double coat?  PVA is normally a great solution. 

I believe there are products from ModPodge and also a 3M sealer but I have not tested those. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Sean Walsh
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Warren (Staff) - 9/21/2020 3:58:03 PM
Try a double coat?  PVA is normally a great solution. 

I believe there are products from ModPodge and also a 3M sealer but I have not tested those. 

I've tried quadrouple coats. Obviously I'm doing something else wrong and still working on it. Will keep you posted.

Warren (Staff)
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Are your edges properly sealed?  Normally it would be hard for it to come in top and bottom where as edges can be more difficult to get right. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Sean Walsh
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Warren (Staff) - 9/21/2020 4:21:23 PM
Are your edges properly sealed?  Normally it would be hard for it to come in top and bottom where as edges can be more difficult to get right. 

Thanks.

GO

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