Technical Specifications

Dow Building Solutions
Safety Precautions
WARNING:
The FROTHPAK
™
cylinders contain isocyanate, hydrofluorocarbon
blowing agent and polyols under pressure. Read and follow these
instructions and the Safety Data Sheets (SDSs) (formerly MSDSs or
Material Safety Data Sheets) carefully before use. The safety precautions
and personal protective equipment indicated below are designed to pro-
tect the user and allow for the safe use and handling of the spray system.
Follow all applicable federal, state, local and employer regulations.
2.1 Safety Clothing (Personal Protective Equipment or PPE)
• Personal protective equipment (PPE) used
during the handling of FROTHPAK
™
foam
products must at a minimum include:
– Protective clothing or impermeable cover-
alls, including long sleeves (no skin should
be exposed)
– Chemical-resistant gloves that are coated
with nitrile, butyl rubber, neoprene or PVC
– Goggles or safety glasses, unless using a
full-face respirator
– Proper respiratory protection,
see section 2.2
• PPE should be worn by:
– Applicator
– Anyone assisting applicator
– Other workers in the room within 25 ft of the applicator
– Anyone entering the spray area less than one hour post spraying
with proper ventilation
• If PPE is contaminated during application, properly discard and
replace immediately
• Do not consume or store food or tobacco in the work area.
Make sure to wash your hands and face before eating or smoking
after application.
2.2 Respiratory Protection
2.2.1 Personal Respiratory Equipment
DO NOT breathe vapors or spray. Workers must be respira-
tor fit tested per OSHA requirements. Employers must have a
documented respiratory and PPE plan per OSHA requirements
Section 2
including considerations for frequency of fit testing and health
exams. Depending on the area of spray, the amount of foam being
sprayed, the amount of ventilation and the type of spray nozzle
used, respiratory protection equipment may differ in order to offer
optimum protection to avoid exceeding established exposure limits
of the chemicals. Proper respiratory protection options include:
- NIOSH-approved full-face or half-mask air-purifying
respirator with an organic vapor sorbent and a P100
particulate filter
- For situations where the atmospheric levels may exceed
the level for which an air-purifying respirator is effective at
maintaining exposure levels below ACGIH, OSHA, WEEL or
other applicable limits, use a positive-pressure, air-supplying
respirator (air line or self-contained breathing apparatus) or
supplied air.
- Change out respirator cartridges according to your
employer’s change-out schedule (typically 8 hours or end
of shift)
- The spray foam applicator and anyone within 25 feet of the
applicator, must use approved respiratory protection.
- If there is ever a doubt as to the potential limits for worker
exposure, Dow always recommends using the highest level
of protection.
2.2.2 Containment of spray zone
Use barrier tape and warning signs to mark the working peri-
meter for respiratory hazards until at least one hour after spray
ing has ended. Isolate the spray area by shutting down the
HVAC system and sealing off any air intakes. If spraying
outdoors, ensure the barrier keeps others at least 25 feet away
from the spray area in all directions and use additional barriers
as needed to protect downwind areas.
2.2.3 Ventilation
During application a minimum of 10 Air Changes per Hour
(ACH) is required. Cross ventilation is recommended with
negative pressure in the spray area. A commercial ventilation
unit is recommended. Ensure the exhaust from the spray area
is sent to a secured empty area with considerations for warning
signs, barrier for 25 feet of non-entry, wind, HVAC systems,
and other factors. Continue to ventilate the area for at least
1 hour after the spray job is completed at no less than 10 ACH.
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