No other design offers these significant features.

Mercer supplies a sturdy tank shell to house the internal components. Our separators built in the mid-range size (400-600 gpm) have exterior shell walls from 5/16” to 3/8”, with 1⁄2” base plates and substantial structural reinforcing. We utilize schedule 80 carbon steel or stainless steel sludge fittings or stainless, where blasting and painting is the most difficult and the effects of corrosion will be the most prominent.

Mercer specifies Carboline or Sherwin Williams paint systems on all our carbons steel fabrications. A typical paint specification is as follows:

Interior paint: Carboline Plasite #7159 or Sherwin Williams two part coal tar epoxy (TarguardTM #4.72) over SP-10 sandblast. Exterior paint: Carboline Carbothane 133HB over Carboguard 888 primer or Sherwin Williams recoatable epoxy primer (#4.45) over SP-6 sand blast with a hi- solids polyurethane finish coat (#5.21).

We have used other paint systems (to incorporate a client’s standard), and are willing to utilize your company standard. We typically exceed the paint manufacturer’s coating recommendation on the interior system, by double coating the interior epoxy to minimize thin spots.

Mercer takes extra effort in inspecting the sandblasting job, especially the interior. Mercer closely monitors its sub-fabricators in regard the SP-10 interior blast, keeping in mind that the paint system is only as good as the sand blast beneath it.

Other Designs: Though I can’t speak authoritatively on others’ painting procedures, I do see many units in the field and have trouble believing that the basting and painting is done strictly per the paint manufacturer’s specification.