I've hung the lining paper and left a 1-2mm gap between each roll as advised. My question is what should I use to fill the gaps? I've tried Polycells's "Fine Surface Polyfilla", but this doesn't give me a smooth, flat join. It's just gone from a deep gap like this
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to a shallow one like this
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Can anyone advise/help?
[code:1]
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to a shallow one like this
[code:1]
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[/code:1]
Can anyone advise/help?