Perfect Primer encapsulating asbestos sealer
More than 1/2 gallon remaining from gallon, $250 new.
Roll, paint, or spray on. dries tacky and needs a final covering like paint, concrete, or paneling.
For Vertical or Horizontal surfaces. Seals more than asbestos. Use it to seal stains, etc.
(pix make it look like a dark grey but its a light to med grey)
$50 or trade for comparable value.