Technical Specifications
Dow Building Solutions
7
Recommended Temperatures
The temperature indicator – not available on FROTHPAK 620 and
650 kits – on the side of the tank shows the temperature of the con-
tents of the tank, not ambient air temperature. For best results, the tank
contents should be at 75º F (24º C) or warmer. FROTHPAK
™
Foam can
be applied effectively in cool air temperatures or on cool work surfaces
(above freezing and less than 75% relative humidity) provided the kit
contents are at least 75º F (24º C).
Cold weather notice
The proper liquid component temperature in spray foam ensures a
balanced chemical ratio, consistent tank pressure and an optimal
foam yield.
To achieve the optimal liquid component temperature before spraying
foam, store chemical indoors at a temperature between 7585º F
(2429º C) for at least one day prior to spraying. Otherwise, the foam
performance could be compromised and ultimately could lead to a loss
in yield. See Section 7.1, Temperature, and Section 11, Tank Heating.
Dow also recommends that you rock each kit back and forth before
opening the valves for the first use to ensure optimum foaming of
FROTHPAK
™
Foam Kits.
If after storing the product indoors and rocking, the kit is not
performing properly, please stop spraying and access the trouble-
shooting tips in this brochure or contact the Customer Information
Group at 866583BLUE (2583).
3.1 System Purging and Testing
1. DO NOT breathe vapor or spray. Proper PPE and ventilation
are required. See product SDS and Section 2 of this manual
for further information. Follow all precautions for product.
2. Dispense liquid materials in an appropriate container for
about 10 seconds. This is to verify proper chemical flow.
3. Clean any liquid material from the INSTAFLO
™
Gun face
using a rag.
4. Insert an unused nozzle with the key slot down. Push in
firmly until the nozzle ejector is seated over the back rim of
the nozzle.
* Time depends on ambient and chemical temperature. See chart on next page for nozzle change out times.
Figure 1.
Figure 2.
Figure 4.
Figure 3.