Kitchen Silicone discoloured after a few weeks

eddyj443 · Jun 02, 2019 11:20 pm

Hi,

We recently installed a new Kitchen and used white silicone between the stone bench top and tiled walled. This has discoloured and gone a yellowish colour in patches after a few weeks. Can anyone suggest what could have caused this?

I cannot remember the brand of silicone but it was from a building supplies store and which they recommended would last in a kitchen (didn't want to buy shellys in Bunnings as people don't seem to rate it, wishing I had now).

It is patchy, some areas are bright white others are very yellow. I cannot think of anything we have put on it that would have discoloured it. No tumeric etc. It has actually appeared on both sides of the kitchen in so seems unlikely to be something spilled on it. I am planning to redo it with another brand but wondering if anyone knew what would have caused it? I don't want it to happen again. I have tried a mild bleach solution and baking soda but it has not changed, leads me to believe it is the product itself, not a stain.

Photo below, left hand edge is white and then it gets yellow towards the right (much more evident in real life than in the photo)
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Also whats the best way to remove the existing silicone? Is this a good product or a waste of time? https://www.bunnings.com.au/selleys-...mover_p1232412

Thanks

Joker · Jun 07, 2019 9:55 pm

Don't know if there's some sort of oil in product ,but if yes oil tends to yellow up whites as in oil paint .

MyFirst · Jun 07, 2019 10:56 pm

eddyj443

Hi,

We recently installed a new Kitchen and used white silicone between the stone bench top and tiled walled. This has discoloured and gone a yellowish colour in patches after a few weeks. Can anyone suggest what could have caused this?

I cannot remember the brand of silicone but it was from a building supplies store and which they recommended would last in a kitchen (didn't want to buy shellys in Bunnings as people don't seem to rate it, wishing I had now).

It is patchy, some areas are bright white others are very yellow. I cannot think of anything we have put on it that would have discoloured it. No tumeric etc. It has actually appeared on both sides of the kitchen in so seems unlikely to be something spilled on it. I am planning to redo it with another brand but wondering if anyone knew what would have caused it? I don't want it to happen again. I have tried a mild bleach solution and baking soda but it has not changed, leads me to believe it is the product itself, not a stain.

Photo below, left hand edge is white and then it gets yellow towards the right (much more evident in real life than in the photo)
Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅

Also whats the best way to remove the existing silicone? Is this a good product or a waste of time? https://www.bunnings.com.au/selleys-...mover_p1232412

Thanks

Try wd40.. Google in Internet.

A friend just did it. It says its amazing..

Sethor · Jun 10, 2019 4:23 am

I would not use the Selleys product, it may cause damage to your benchtop. Just buy a plastic removal tool like this https://www.bunnings.com.au/cornertape-standard-silicon-remover_p1660553 stay away from metal ones as it may scratch. Use this tool & a razor blade to remove silicone.