Thermo-Panel Separation
Looking for any opinions or advice on old Winnebago first gen Thermo-Panel separation of adhesive. Large flat wall area has developed a bubble. My usual tech guy said the fiberglass panel's adhesive has probably pulled from the foam due to air penetration and super heating from the recent continued 110+ degree day temperatures. He showed me how when I brought it inside and he cooled the entire surface, the panel laid flat against the wall. If you press the panel hard against the wall, it re-sticks in some paces but pops away when temps rise again. It's not a delamination as there isn't any actual luan or plywood between the fiberglass and the aluminum/foam core structure.
My concern is the fix. He said its a bit of a problem because ideally you want a low viscosity liquid to coat the areas, but most are slow curing. In this case you want adhesive properties (not so much stiffening or re-laminating) which is best done when using fast curing adhesives. He also said that unlike de-lamination where your using flat pressure to bond all the pieces in pace as it cures, this is more like getting an air bubble out of a decal before the glue sets through a pinhole or slit. He does have special adhesives for this type of use but it's not really a DIY system as it also includes an injector and vacuum systems.
Has anyone every did their own Thermo-Panel re-gluing? What adhesive did you use (we said to be sure it's safe for the foam and won't melt it). Thanks in advance for any advice or opinions.
My concern is the fix. He said its a bit of a problem because ideally you want a low viscosity liquid to coat the areas, but most are slow curing. In this case you want adhesive properties (not so much stiffening or re-laminating) which is best done when using fast curing adhesives. He also said that unlike de-lamination where your using flat pressure to bond all the pieces in pace as it cures, this is more like getting an air bubble out of a decal before the glue sets through a pinhole or slit. He does have special adhesives for this type of use but it's not really a DIY system as it also includes an injector and vacuum systems.
Has anyone every did their own Thermo-Panel re-gluing? What adhesive did you use (we said to be sure it's safe for the foam and won't melt it). Thanks in advance for any advice or opinions.
