Solar work is electrical work — and your FR knows it
Plenty of solar crews wear arc-rated clothing because module strings carry serious DC voltage long before anything is energized on the AC side. If your employer issues arc-rated FR, the laundry rules that apply to any electrical trade apply to you.
The protection lives in the fabric and its treatment. Residue left on that fabric works against it, which is why the three most common laundry-aisle additives are the three to avoid.
The three to leave out
- Chlorine bleach — attacks fibers and shortens garment life.
- Optical brighteners — deposit residue to change how light reflects; they do not clean.
- Fabric softener and dryer sheets — leave a coating that traps soil and sits on gear designed not to ignite.
Getting roof tar and sealant out
Bitumen, butyl tape residue, and panel silicone all behave the same way: they smear when warm and set when cool.
- Let the spot cool and harden — do not work it hot.
- Break away what lifts cleanly.
- Apply degreaser directly, working outside-in so the edge does not spread.
- Wait 5–10 minutes, then wash warm.
- Air dry and inspect before any dryer heat.
Set-in sweat is a different soil
Roof work in full sun drives salt and skin oil deep into the weave every single day. That is protein soil, and it needs enzymes and real surfactants — not fragrance layered on top. A shirt that smells fine in the closet and turns an hour into the shift was never actually clean.
What this product does not do
No detergent restores, confers, or guarantees the arc rating or flame resistance of a garment. Blackwater is formulated to avoid damaging the FR treatment already in your gear. Follow your garment care label and your employer's PPE policy.