What's the best paint for aluminium gutters?
What paint should I use to paint my aluminium gutters?
Before painting your gutters, you really need to wash them down. I mean REALLY wash them down – scrubbing with brushes and sponges, using a regular liquid dishwashing soap that gives lots of suds. Now you need to prime them. Don’t use any latex paint primer that contains ammonia, as this could react with the aluminium, instead use a clear acrylic bonding primer if you can, or at worst a regular oil based metal primer. Follow the instructions on the tin carefully. To maximize bonding with the primer, apply a top coat of 100% acrylic paint within 48 hours.