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Epoxy is a hazardous material, you can find information on the hazards of epoxy from the SDS sheets and the Right to Know Center in the shop.
What Personal Protective Equipment is recommended when working with Epoxy? Choose all those that apply.
When striping sub-work, it is not necessary to run with the tanks completely full.
While ‘stroking in’ the truck, adjust the operating pressure with the sun dials.
At what point do you know the truck is ready to spray while “stroking in”?
When “loading up” the guns to spray, you need to shut off pump hydraulics.?
What are the primary reasons to ‘blow out’? Choose all those that apply.
If you are not getting material from guns, what should you check? Choose all those that apply.
How often should the high pressure filters be cleaned?
How often should Y-block check valves be checked and cleaned ?
No beads, poor bead flow, what can you check?
Epoxy trucks usually carry regular beads and visibeads for wet night visibility.
At 4 inches wide, epoxy is usually applied at 15 mils with 12 lbs. of beads per gallon?
Epoxy is ONLY used for permanent work?
Catalyst and resin are applied at a rate of 2:1 ( two parts catalyst and one part resin)?
Catalyst and resin (materials) are driven by air pressure from the tanks to the heat exchangers and then to the high pressure pumps?
When recirculating, materials are driven from the whitey valves back to the tanks?
When loading and flushing guns, it is expected that you wear gloves, respirator, and eye protection.
There are three master switches on the epoxy truck – outside on the chassis, in the cab, and on the rear console?
Hydraulics are engaged at low idle to avoid bursting a hose line?
Supply valves for catalyst and resin are only closed when cleaning filters.
Glycol should be heated to a minimum of 140 degrees in warm weather; and 160 degrees in cold weather.
When getting the truck ready, you must turn on three individual heat switches for catalyst, white and yellow resin?
When ‘stroking in’ the truck, the high pressure pump should be set to no more than 750 psi.
As a general guide, resin is heated to 155-160 degrees?
As a general guide, catalyst is heated to 115-120 degrees?
To load the guns, switch off pump hydraulics, then switch SOLV/LOAD controls to LOAD and turn pump hydraulics on again.
To stripe, dial up pump pressure to 1500-2000 psi and make sure gauges stay together?
If pump pressure is below 1500 psi, you are more likely to shoot black spots?
After loading the guns into a blow-out bag, increase the pump pressure until all three pressure gauges read 2800-3000 psi.