Epoxy safety: what actually matters
Sensitisation is permanent and preventable. A plain-language guide to the three things worth being strict about.
Epoxy is not dangerous in the way solvents are dangerous. It is dangerous in a slower, quieter way: it is a sensitiser. That means repeated skin or vapour exposure can, without warning, trigger an immune response — and once you are sensitised, you are sensitised for life.
We have watched two people lose this craft that way. Both were experienced. Both had stopped wearing gloves because nothing had ever happened.
Gloves, every single time
Nitrile, six mil, powder-free. Not latex — epoxy passes through latex. Change them the moment they get resin on the outside, because wiping a gloved hand across your forearm is exactly the exposure you're trying to avoid.
Ventilation over respirators, but ideally both
Cross-ventilation — an inlet on one side of the room and an extract on the other — does more than any mask. Add an A1P2 half-mask for sanding and for any session over about an hour.
Never use solvent on your skin
Acetone or IPA to clean resin off a hand is the worst possible move — the solvent opens the skin barrier and carries the resin through it. Wipe with a dry cloth, then wash with soap and cold water.
Disposal
Never pour liquid resin down a drain. Mix leftovers together, let them cure fully in a silicone cup, and dispose of the cured puck as solid waste — inert once crosslinked.
Put it into practice
Everything in this article, on one bench.
Our starter benches ship with enough material for two attempts and a printed pour card — so the technique above has somewhere to land.