![]() I did a little test patch of foam with laytex paint that I had sitting around the house. Maybe I don't need it as flat? But from what most say, it needs to be flat. So hence why I am using hydrocal to flatten the areas where the seams as such are. Since I am new at this, I have read that you want your trackbed to be as flat as possible. So maybe some kind of sealant to it would be great before the hydrocal. Usually I notice the bubbles about 40 min after they hydrocal was applied. As it was stated, I believe it is heating up (while drying) and causing it to lift. ![]() The only issue now is when I add the hydrocal afterwards (it bubbles in areas). Let me try and see if I can be more detailed now as I have read the responses.Īs long as I have scuffed up the foam the plastercloth will stick fine. My question is: What am I doing wrong? Any tips to help correct this issue?Īny help would greatly be appreciated. It seems that everytime I introduce moisture into the plastercloth I release the bond to the foam and get bubbles. And that is the layout style I am trying to go for. I have read several people having a great layout with plaster cloth over foam. Well lets just start the bubbling off of the foam all over again. So I moved on to covering the plastercloth with hydrocal. This time running some sandpaper over the foam to rough it up and tried again. ![]() Within a hour I had bubbles from the plaster cloth lifting from the foam. Glued foam to my base and then went over it with plaster cloth (I am using Woodland Scenics and also Activa Rigid Wrap. I have my base with blue foam (bought from local hardware store). I have been following advice that I have read from researching. First to start off, I am completely new to model railroading. ![]()
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