Keep Components A and B Separate
11
Keep Components A
and B Separate
Foam Resins with 245
fa Blowing Agents
New foam blowing agents will froth at tempera-
tures above 90°F (33°C) when not under pres-
sure, especially if agitated. To reduce frothing,
minimize preheating in a circulation system.
Changing Materials
• When changing materials, flush the equip-
ment multiple times to ensure it is thor-
oughly clean.
• Always clean the fluid inlet strainers after
flushing, see page 41.
• Check with your material manufacturer for
chemical compatibility.
• Most materials use ISO on the A side, but
some use ISO on the B side.
• Epoxies often have amines on the B (hard-
ener) side. Polyureas often have amines on
the B (resin) side.
CAUTION
To prevent cross-contamination of the equipment’s
wetted parts, never interchange component A (isocy-
anate) and component B (resin) parts.
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