UPVC Window & Door trims silicon seals start to develop some moulds

28 Aug 2015
Reaction score
South Wales
United Kingdom
Hi there,

We are thinking of replacing existing trims on our UPVC door and window downstairs as existing ones are too short and white silicons start to develop some black moulds. We want to completely remove old silicon seals and short trims and then put in new larger trims and mould & damp resistant silicon seals.

What is the best and easiest way to remove old trims and silicon seals without damaging existing surfaces?

What sorts of adhesives / silicon sealants would you recommend to apply new PVC trims on:-
(1) a cold surface that has a wallpaper still intact.
(2) a cold surface which has already been stripped to plaster.
(3) a cold surface which has been painted twice?

Would mitre bond super glue and activators (not spray ones) do the job on all 3 possible surfaces? If not, what would you recommended to use for each surface type?

Would the 90mm UPVC White Trim Architrave be suitable to be applied on laminate flooring? If so, what adhesive would you use for this purpose?

Thanks in advance :)

Simon Cardiff
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Clear LMN silicone for all those surfaces. Although if you are decorating anyway it would be better to plaster them in (without bridging any DPC's)

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