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silicone sealent around downlights

I still not done this, but have found that there is a heat resistant sealant used by fireplace fitters for flues etc, upto 1000 degs.

I've seen it in black, but everywhere I look it seems to be red which isn't what I want.

Have a look on screwfix for fire and heat sealants.

And let me know if you find it in black or white.

Cheers
 

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