FROTH-PAK™ 650 Spray Foam Sealant Kit, 650 sq ft, 15 ft Hose, 4 Complete Kits

KTDW 65010-4P
Please note: A reformulated version of this product will become available by mid-May 2021.
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This is Class A fire rated closed cell foam which means that the sprayed foam can be left exposed up to 2 inches thick in certain applications.


Use by Date? No worries. We guarantee you the freshest product every time you order. 

This kit is intended for residential and commercial applications.  Please use the appropriate personal protection equipment when applying this product and follow all manufacturer instructions on safety, use and disposal.


Dow FROTH-PAK™ 650 Class A fire rated spray foam insulation kits are complete portable two part polyurethane spray foam systems. FROTH-PAK™ polyurethane foam is a two-component, quick cure, closed cell foam that fills cavities, cracks and expansion joints for insulation and air sealing. Air infiltration accounts for 25%-40% of a home’s energy loss, FROTH-PAK™ stops that energy loss. FROTH-PAK™ Foam Insulation kits can be used to insulate stud wall cavities up to 2" thick, cold floors above unheated areas, crawl spaces, attic walls, and ceilings when covered with a code-approved barrier. The kit can be restarted and reused for up to 30 days after first startup. The FROTH-PAK™ 650 kit yields up to 650 board feet of foam.

The FROTH-PAK™ 650 kit yields up to 650 board feet of foam (One board foot = 12"x12"x1"), 1.75 foam density.

FROTH-PAK™ provides a R-6.6 rating per 1 inch of thickness when sprayed at 2 inches thick.



  • Part A Tank(60 pounds) - Isocyanate
  • Part B Tank(60 pounds)  - Polyol
  • 15 foot hose 
  • INSTA-FLO Gun Dispenser & Hose Assembly
  • Cone Spray Anti-Crossover Nozzles (8 cone nozzles, 4 fan nozzles)
  • 1 Wrench (5/8")
  • 1 Petroleum Jelly Packet (5 g)
  • 1 Operation Instruction Manual

Chemical curing allows 2 part polyurethane foam to be dispensed, expand, and become tack free in seconds. Foam will skin over in 30 to 40 seconds. Reentry to spray area can be made in 1 hour without respirator.  FROTH-PAK™ 650 is great for bigger jobs; yield is 650 board ft.


FROTH-PAK™ Foam Insulation Kits (U.S. only) come with a Class-A fire rating (flame spread index of 25 or less), FROTH-PAK™ Foam Insulation can be used in:

  • Stud wall cavities
  • Rim or band joists
  • Crawl space walls and ceilings
  • Attic ductwork
  • Plumbing wall pipe insulation and support

Please refer to your local building code or local inspector for proper application.

Use by Date? - No worries. We guarantee you the freshest product every time you order.


Due to state regulations, this product is not currently available for use in CA, CO, WA, NY, VT, MA, NJ

FROTH-PAK™ spray foam kits are intended for professional use - Please follow all instructions and guidelines for use and application.

Personal Protection Equipment (PPE) should be used when applying FROTH-PAK™ foam kits.

Personal Protection Equipment Recomendations

Froth Pak Safe Handling Instructions

FROTH-PAK™Usage Recomendations

As with all chemical products proper preparation of the work area and application procedures should be followed to insure a safe and satisfactory job.

When spraying FROTH-PAK™, the initial reaction of the 2 chemicals will generate heat. We recommend building up thickness in a series of layers to avoid excessive heat buildup. 

Proper ventilation of the work area should be followed. Please see Froth Pak Ventalation Guidelines.

Please make sure that both tanks are opened fully and that there are no restrictions in the feed lines. An improper mixture will cause "off ratio" foam. To see what this looks like check out our video "How to tell Good from Bad"

FROTH-PAK™ Handling and Disposal

Froth Pak Temperature Guidelines

Froth Pak Disposal Instructions

OSHA Work Rules

For contracters  and businesses OSHA has specific guidelines for applying spray foam. Please see the following for more information:

National Emphasis Program (NEP) for Occupational Exposure to Isocyanates

FAQ on OSHA'S NEP program


Additional charges may apply if shipping to a residence, extended service area, or business that does not have a loading dock.
This product is also available for Pick Up from our Farmingdale, NJ warehouse.

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