Protecting Plants and Stone While an Iron Gate Is Refinished
Refinishing an iron gate throws off stripper, dust, paint and rust, and every bit of it lands on something. In Austin the something is usually a bed of herbs, a limestone path or a flagstone patio only a step from the gate. Gardens in Hyde Park and Clarksville sit tight against the metal, and the creeks that run through town carry anything that washes off a yard. The questions below come up on nearly every garden gate job, and the answers are mostly about order of work and what gets covered first.
Why does protecting the garden matter more with iron gates?
Iron gates stand at the edge of planting beds. Soil and mulch sit right under the bottom rail, and climbing plants often grow through the pickets. Chemical strippers burn leaves on contact, wire brushes throw flakes of old paint several feet, and a dropped brush leaves a stripe of enamel on whatever it hits. A job that takes a morning on the metal can take an afternoon to clean up if the surroundings were not prepared.
Older paint adds a second concern. Enamel from the middle of the last century was often lead-bearing, and flakes of it settle in the soil where vegetables or herbs may grow. Testing with a swab before scraping, and catching every flake on a sheet, keeps that out of the bed.
What goes down on the ground before any work starts?
A canvas drop cloth works better than plastic for dust and flakes, because it stays put in wind and does not turn slick when wet. Plastic sheet goes under it where stripper will be used, since gel stripper soaks through canvas. The cloth should reach at least a few feet beyond the gate on each side, and it needs to be pinned or weighted along the edge with bricks.
Plants close to the metal need cover of their own. Low shrubs and herbs can be covered with a cardboard box or a sheet of burlap held up by stakes. Climbers that grow through the bars are the hard case. They are best loosened and laid back a day ahead, held on a stake, and tied up again once the new coat has cured.
How is stripper kept off roots and stone?
Gel stripper stays where it is brushed, which helps. The trouble starts at rinse time. Rinsing a gate with a hose pushes dissolved paint and chemical into the soil and across the path. A better routine is to wipe the gel off with scrapers and rags, put the waste into a metal pail, and finish with damp rags rather than a stream of water. The pail goes to a household hazardous waste drop-off in the Austin area, never into the trash or the yard.
Limestone and flagstone take stains. Stripper darkens them, and rust-laden runoff leaves orange streaks that no scrubbing removes. Taping plastic over the stone beneath the gate takes a few minutes and avoids a mark that outlasts the paint.
Where does the runoff go?
Water leaving an Austin yard travels downhill to a storm drain or a creek, and from there to the Colorado River and Lady Bird Lake. Yards west of the Balcones Fault drain quickly over thin soil on limestone, and the runoff reaches creeks that feed Barton Springs Pool. Nothing from a paint or stripper job should go down a drain or onto the street.
The rule on the job is simple: dry methods and damp rags wherever possible, a bucket for every rinse, and the bucket emptied into a lined container rather than the gutter. When a wire wheel is used, the debris is swept and bagged the same day, because the first rain would otherwise take it to the street.
How are the paint and primer stored while working outdoors?
Cans stay in the shade, with the lids tapped down firmly after each use. Heat thickens enamel paint and spoils the primer in the can. A small amount poured into a working container keeps the main can clean, and the brush rests across the top of that container rather than on the ground or on the gate. Rags soaked in oil-based primer go into a metal can of water, because they can heat up and ignite on their own if left in a pile.
A dropped brush is the commonest source of stains on a patio. A tray under the working area, even a cardboard one, catches drips before they reach the stone.
What should be masked on the gate itself?
The hinge pin and bushing, the latch mechanism and any brass or bronze fittings should be wrapped or removed before painting. Paint in a hinge knuckle seizes the pin within a season. Paint on a latch spring stiffens it until it fails to catch. Masking tape lifts easily if it is pulled slowly while the paint is still slightly soft, and a sharp blade run along the edge of the tape keeps the line clean.
The ground-side of the bottom rail is worth the same attention. It is the hardest area to reach and the first to rust, so it gets painted first and with the most care, with the gate propped on blocks high enough for a brush to pass under it.
What about pets and neighbors while the gate is out of service?
A garden gate often keeps a dog in or a toddler out, so a gate that comes off its hinges needs a stand-in. A length of temporary fencing or a plywood panel clamped between the posts does the job for a day or two. Wet stripper and fresh enamel are both harmful to a dog that licks a paw, so the area stays closed off until the paint has cured and the stripper residue is wiped away. Neighbors on a shared fence line deserve a word as well, since overspray and dust drift farther than most people expect on a breezy Central Texas afternoon.
When does the work area get put back?
Plants go back after the paint has cured, not after it has dried to the touch. Enamel paint on iron takes much longer to harden fully than the surface suggests. Pulling a climbing vine back across a leaf that is dry but soft marks the finish and leaves leaf prints in the paint. A few days is the usual wait in warm weather, and longer when the mornings stay cool and damp.
The drop cloth is lifted from the corners and folded inward, so flakes and dust stay in the middle. The ground underneath gets a last look and a sweep, with a magnet run over the soil to pick up any steel filings that wire brushes leave behind.
Careful preparation around the gate is part of the repair, not an extra, and a refinished gate looks better beside plants and stone that came through the work untouched.