TELEPHONE  (909)841-4236

PUP is an acronym for Portable Urethane Processor.  No huge trailer or generator is required. Easily wheel the unit around your project and spray with the 50 foot heated hose included.  50 foot heated extension hoses can be added to extend the reach to 150 foot. LIL PUP foam machines are the affordable way to spray with professional results. Sprays open and closed cell foam.

The first LIL PUP built in 2005 is still going strong today. Over 500 have been produced to date operating in seven plus  countries worldwide.  

Don't let the cute name fool you, these machines are well engineered, made to last and built to perform.  Most PUP customers spray 1000 to 2000 pounds of foam daily.

  • Spray foam insulation
  • Spray foam roofing
  • Below grade water proofing
  • Concrete slab lifting
  • Spray-On truck bed liners
  • Architectural coatings
  • Movie sets and props
  • Faux rocks


Competitors guns are complex with many expensive parts that require constant attention.  Our patent pending gun uses a dual air nucleation system with a low cost plastic nozzle. Simple, effective, and the nozzles can be used many times over! The lil pup foam machines are the easiest to use.


  • Costs a fraction compared to high pressure
  • Superior to bottle foam machines
  • Operates on just 15 Amps @115 volt
  • Portable system fits thru narrow doors
  • Sprays the same foam the big rigs use
  • Requires no special training
  • Less maintenance/user serviceable parts
  • Heavy duty construction-built to last
  • Easily check the ratio at the gun
  • ​Gravity feed, no drum pumps required
  • Reusable spray tips, fan or round pattern
  • Also sprays polyurea coatings
  • Pump from 55 gallon drums or pails

Features include: digital hose heat, independent pump speed controls, solid state electronics, robust 1/2 HP DC motors and precision gear metering pumps. Affordable foam machines that are easy to use.


Several options are available including on board chemical tanks, fluid heaters, flow meters etc. The PUP also sprays polyurea/polyurethane coatings!

LIL PUP was engineered by a urethane applicator with over 3 decades of experience. Have questions? Not convinced this is right for you? Contact my cell at (909) 841-4236

Dan McDonough