DIY Doctor

How Much old Silicone Sealant do I Have to Remove

Postby kennycapes » Mon Sep 17, 2018 7:55 am

Hi all, welcome to a new week

Over the weekend i started prepping my shower for a reseal and re-grout.

after spending hours on removing the silicone i just would like to get your feedback on how clean it has to be,

I have razer bladed it and got it looking really clean but, when you rub your finger along it there is still a sensation of silicone,

Do i need to use a silicone remover so there is "NO TRACE" of silicone left or is that just not a possibility.

I understand you cant leave the main bulk there as the new stuff wont have anything to bond against, but ALL of it, really?

Thanks all
kennycapes
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Postby KitchenGuy » Mon Sep 17, 2018 9:55 pm

Being honest, it is much safer to remove it all. The trouble is that the new silicone often softens the old stuff, bits break off and contaminate the new stuff causing a bad finish. I hate removing silicone so I feel your pain. The good news is that once you have most of it off like you have, I find that the rest comes of easy with a stainless pan scourer and a solvent cleaner or a nylon one if you have an unsteady hand and are worried about scratching. Something like this works good and it will be off in five minutes of scrubbing. https://www.toolstation.com/shop/Cleani ... ner/p31464

Other brands are available lol Silicone remover turns the surface to slush and I find that it's even worst to remove. Others may disagree.
If you decide you can't face removing it then neutral cure silicone is less likely to dissolve the old or a hybrid polymer sealer like ct1 or stixall. Don't use the clear though it turns yellow after a while.

Good luck.
KitchenGuy
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Postby kennycapes » Tue Sep 18, 2018 9:38 am

Many thanks for your link and advice.

i will go for a removal chemical to help get the old stuff off.
kennycapes
Rank: Labourer
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75%
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Joined: Tue Apr 10, 2018 11:19 am



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