To answer your original question, Peter, use a HIGH-TEMP glue; aerosol sprays are far more convenient to use. The headliner is glued directly onto a steel panel that in summer sunshine can reach 140F or the temp of too-hot-to-drink coffee or tea. So ordinary glues soften, melt and your new headliner falls down around your ears, sometimes while you're driving. 3M "90" is the higher temp material, if available in your area. I use a lot of it. Dunno if it can be shipped to England successfully in this day & age.
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