Treat any mildew with a 50 50 bleach and water solution.
Restoring faded brown guttering.
A 4m length of guttering can expand contract over 25mm in length in different temperatures.
You can use a paint brush or foam brush.
Let dry and check that all the oxidation is removed.
Work it gently into the plastic give it a few seconds to dry buff it off and there you go.
All together took about an hour or so.
Take it all down and turn it round you will see that it is not faded.
Give you a couple more years probably longer than the paint would stay on.
You can use a brush or a cloth.
You can restore the color and luster of your dull faded gutters with everbrite.
All plastic guttering in external soil stack suffer from uv damage.
Use a 12 hydrogen peroxide cream instead of the liquid variety most stores carry.
Tried lots of different products to revive a very faded 8 year old black composite front door.
Plenty in the tub probably used about 1 8 of it on the door as i lashed it on.
If there are missed areas wipe the oxidation with a damp cloth.
Paint hydrogen peroxide cream over the faded or discolored area.
To ensure a good bond.
All surfaces must be clean dry and free of dirt grease grime and mildew.
Clean the gutters with ez prep concentrated cleaner and water.
Should be completely and thoroughly removed.
Scrub the solution on to the surface and allow it to stand for 10 15 minutes then rinse thoroughly.
I was sceptical as i always am about online reviews but this stuff really does do the job.
All waxes polishes silicone etc.
Wearing rubber gloves use a grout sponge to clean and wash the gutters thoroughly with the soapy mixture.
Then brush an even layer of the cream over the area.
A paint has to be pretty darn flexible to cope with that.
You see it is only the surface that is discoloured under that it is as good as new.
Look all you need is a mildly abrasive metal cleaner.