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Foam Resins with 245 fa
Blowing Agents
Some foam blowing agents will froth at temperatures
above 90°F (33°C) when not under pressure, especially
if agitated. To reduce frothing, minimize preheating in a
circulation system.
Changing Materials
NOTICE
Changing the material types used in your equipment
requires special attention to avoid equipment damage
and downtime.
•
When changing materials, flush the equipment
multiple times to ensure it is thoroughly clean.
•
Always clean the fluid inlet strainers after flushing.
•
Check with your material manufacturer for chemi-
cal compatibility.
•
When changing between epoxies and urethanes
or polyureas, disassemble and clean all fluid com-
ponents and change hoses. Epoxies often have
amines on the B (hardener) side. Polyureas often
have amines on the B (resin) side.
310648P
Grounding
WARNING
Read warnings, page 4.
Check your local electrical code and proportioner man-
ual for detailed grounding instructions.
Solvent line must be Graco approved grounded hose.
Primary ground is through the grounded solvent supply
hose.
Ensure that solvent supply pump is properly grounded.
Ensure continuity from the spray tip to grounded solvent
hose when using static mixers and tips other than sup-
plied with gun.
Grounding
9
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