Polyurethane Chemical Troubleshooting

Nation-Wide Service

We help our customers with all kinds of Spray Foam Troubleshooting and Spray Elastomer issues, that's the benefit of being a Polysource ProContractor. Having over 40 years in the spray foam industry has given us a depth of knowledge in a range of spray foam problems. Our reps are industry experts and have a deep and working knowledge of spray systems and on-site variables. Be sure to contact us for help and becoming a Polysource ProContractor, we have the answers you need!

Frothing of Spray Mixture At Gun

Heat of components too high at gun.
Off-ratio ("B" rich).

Blow Holes

Drop of moisture on surface being sprayed (rain, perspiration, wet gun air, etc.).

Pinholes

Operating pressure of components too low (poor mix).
Improper impingers and/or disc/tip.
Heat of components too low at gun (poor mix).
Off-ratio.

Poor Interlayer Adhesion

Too great a delay between passes.
Moisture on surface (high humidity, condensation, fog, dew, etc.).
Passes too thin.
Off-ratio ("B" starved).

Poor Cell Structure

Passes too thin.
Off-ratio.
Pressure of components too low at gun (poor mix).
Temperature of components too low at gun (poor mix).
Second pass applied too quickly.

Slow Reactivity

Off-ratio ("B" starved).
Heat of components too low at gun (poor mix).
Using improper reaction rate version for ambient conditions.
Improper impingers and/or disc/tip.
Temperature of substrate too low.

Rough Surface

Heat of components too low at gun.
Improper impingers and/or disc/tip.
Heat of components too low at gun ("Treebark" texture).
Heat of components too high at gun ("Popcorn" texture).
Using improper reaction rate for ambient conditions.
Overspray.
Spraying in too high winds.
Improper spray angle.

Elastomer Coatings Guides & Polyurethane Troubleshooting

Spray Foam Troubleshooting Guide

Abnormal Pour Foam Physical Properties

Elastomer Surface Preparation Standards

Spray Elastomer Troubleshooting

SPF & Elastomer Troubleshooting

Polyurethane Chemical Troubleshooting

Frothing of Spray Mixture At Gun

Blow Holes

Pinholes

Poor Interlayer Adhesion

Poor Cell Structure

Slow Reactivity

Rough Surface

Elastomer Coatings Guides & Polyurethane Troubleshooting

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