Keep Components A And B Separate; Foam Resins With 245 Fa Blowing Agents; Changing Materials - Graco Reactor A-XP Series Operation

Keep Components A and B Separate

Keep Components A and
B Separate
CAUTION
To prevent cross-contamination of the equipment's
wetted parts, never interchange component A (isocy-
anate) and component B (resin) parts.
Foam Resins with 245 fa
Blowing Agents
New 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.
8

Changing Materials

• When changing materials, flush the equipment mul-
tiple times to ensure it is thoroughly clean.
• Always clean the fluid inlet strainers after flushing,
see page 31.
• 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 (hardener)
side. Polyureas often have amines on the B (resin)
side.
312407C